Auditbeat Linux

Overview

Auditbeat communicates directly with the Linux audit framework, collects the same data as auditd then the data can be stored in JSON inside a log file before being sent to a log concentrator.

Benefit from SEKOIA.IO built-in rules and upgrade AuditBeat Linux with the following detection capabilities out-of-the-box.

SEKOIA.IO x AuditBeat Linux on ATT&CK Navigator

Address Space Layout Randomization (ASLR) Alteration

ASLR is a security feature used by the Operating System to mitigate memory exploit, attacker might want to disable it

Effort: intermediate

Advanced IP Scanner

Detects the use of Advanced IP Scanner. Seems to be a popular tool for ransomware groups.

Effort: master

Audio Capture via PowerShell

Detects audio capture via PowerShell Cmdlet

Effort: intermediate

BazarLoader Persistence Using Schtasks

Detects possible BazarLoader persistence using schtasks. BazarLoader will create a Scheduled Task using a specific command line to establish its persistence.

Effort: intermediate

Blue Mockingbird Malware

Attempts to detect system changes made by Blue Mockingbird

Effort: elementary

Change Default File Association

When a file is opened, the default program used to open the file (also called the file association or handler) is checked. File association selections are stored in the Windows Registry and can be edited by users, administrators, or programs that have Registry access or by administrators using the built-in assoc utility. Applications can modify the file association for a given file extension to call an arbitrary program when a file with the given extension is opened.

Effort: advanced

Clear EventLogs Through CommandLine

Detects a command that clears event logs which could indicate an attempt from an attacker to erase its previous traces.

Effort: intermediate

Commonly Used Commands To Stop Services And Remove Backups

Detects specific commands used regularly by ransomwares to stop services or remove backups

Effort: intermediate

Control Panel Items

Detects the malicious use of a control panel item

Effort: advanced

DNS Exfiltration and Tunneling Tools Execution

Well-known DNS exfiltration tools execution

Effort: intermediate

Data Compressed With Rar With Password

An adversary may compress data in order to make it portable and minimize the amount of data sent over the network, this could be done the popular rar command line program. This is a more specific one for rar where the arguments allow to encrypt both file data and headers with a given password.

Effort: intermediate

Debugging Software Deactivation

Deactivation of some debugging softwares using taskkill command. It was observed being used by Ransomware operators.

Effort: elementary

Default Encoding To UTF-8 PowerShell

Detects PowerShell encoding to UTF-8, which is used by Sliver implants. The command line just sets the default encoding to UTF-8 in PowerShell.

Effort: advanced

Disable Task Manager Through Registry Key

Detects commands used to disable the Windows Task Manager by modifying the proper registry key in order to impair security tools. This technique is used by the Agent Tesla RAT, among others.

Effort: elementary

Disabled IE Security Features

Detects from the command lines or the registry, changes that indicate unwanted modifications to registry keys that disable important Internet Explorer security features. This has been used by attackers during Operation Ke3chang.

Effort: advanced

Domain Trust Discovery Through LDAP

Detects attempts to gather information on domain trust relationships that may be used to identify lateral movement opportunities. "trustedDomain" which is detected here is a Microsoft Active Directory ObjectClass Type that represents a domain that is trusted by, or trusting, the local AD DOMAIN. Several tools are using LDAP queries in the end to get the information (DSQuery, sometimes ADFind as well, etc.)

Effort: elementary

Dynamic Linker Hijacking From Environment Variable

LD_PRELOAD and LD_LIBRARY_PATH are environment variables used by the Operating System at the runtime to load shared objects (library.ies) when executing a new process, attacker can overwrite this variable to attempts a privileges escalation.

Effort: advanced

ETW Tampering

Detects a command that clears or disables any ETW Trace log which could indicate a logging evasion

Effort: intermediate

Exchange PowerShell Snap-Ins To Export Exchange Mailbox Data

Detects PowerShell SnapIn command line, often used with Get-Mailbox to export Exchange mailbox data.

Effort: intermediate

Exfiltration Domain In Command Line

Detects commands containing a domain linked to http exfiltration.

Effort: intermediate

HackTools Suspicious Process Names In Command Line

Detects the default process name of several HackTools and also check in command line. This rule is here for quickwins as it obviously has many blind spots.

Effort: intermediate

High Privileges Network Share Removal

Detects high privileges shares being deleted with the net share command.

Effort: intermediate

ICacls Granting Access To All

Detects suspicious icacls command granting access to all, used by the ransomware Ryuk to delete every access-based restrictions on files and directories. ICacls is a built-in Windows command to interact with the Discretionary Access Control Lists (DACLs) which can grand adversaries higher permissions on specific files and folders.

Effort: elementary

KeePass Config XML In Command-Line

Detects a command-line interaction with the KeePass Config XML file. It could be used to retrieve informations or to be abused for persistence.

Effort: intermediate

Lazarus Loaders

Detects different loaders used by the Lazarus Group APT

Effort: elementary

MalwareBytes Uninstallation

Detects command line being used by attackers to uninstall Malwarebytes.

Effort: intermediate

MavInject Process Injection

Detects process injection using the signed Windows tool Mavinject32.exe (which is a LOLBAS)

Effort: intermediate

Msdt (Follina) File Browse Process Execution

Detects various Follina vulnerability exploitation techniques. This is based on the Compatability Troubleshooter which is abused to do code execution.

Effort: elementary

NTDS.dit File Interaction Through Command Line

Detects interaction with the file NTDS.dit through command line. This is usually really suspicious and could indicate an attacker trying copy the file to then look for users password hashes.

Effort: intermediate

NetSh Used To Disable Windows Firewall

Detects NetSh commands used to disable the Windows Firewall

Effort: intermediate

Netsh Allowed Python Program

Detects netsh command that performs modification on Firewall rules to allow the program python.exe. This activity is most likely related to the deployment of a Python server or an application that needs to communicate over a network. Threat actors could use it for data extraction, hosting a webshell or else.

Effort: intermediate

Netsh Port Forwarding

Detects netsh commands that enable a port forwarding between to hosts. This can be used by attackers to tunnel RDP or SMB shares for example.

Effort: elementary

Netsh RDP Port Forwarding

Detects netsh commands that configure a port forwarding of port 3389 used for RDP. This is commonly used by attackers during lateralization on windows environments.

Effort: elementary

New DLL Added To AppCertDlls Registry Key

Dynamic-link libraries (DLLs) that are specified in the AppCertDLLs value in the Registry key can be abused to obtain persistence and privilege escalation by causing a malicious DLL to be loaded and run in the context of separate processes on the computer. Logging for Registry events is needed in the Sysmon configuration (events 12 and 13).

Effort: intermediate

NlTest Usage

Detects attempts to gather information on domain trust relationships that may be used to identify lateral movement opportunities. These command lines were observed in numerous attacks, but also sometimes from legitimate administrators for debugging purposes. The rule does not cover very basics commands but rather the ones that are interesting for attackers to gather information on a domain.

Effort: intermediate

Non-Legitimate Executable Using AcceptEula Parameter

Detects accepteula in command line with non-legitimate executable name. Some attackers are masquerading SysInternals tools with decoy names to prevent detection.

Effort: intermediate

Outlook Registry Access

Detection of accesses to Microsoft Outlook registry hive, which might contain sensitive information.

Effort: elementary

Phorpiex DriveMgr Command

Detects specific command used by the Phorpiex botnet to execute a copy of the loader during its self-spreading stage. As described by Microsoft, this behavior is unique and easily identifiable due to the use of folders named with underscores "__" and the PE name "DriveMgr.exe".

Effort: elementary

PowerCat Function Loading

Detect a basic execution of PowerCat. PowerCat is a PowerShell function allowing to do basic connections, file transfer, shells, relays, generate payloads.

Effort: intermediate

PowerShell AMSI Deactivation Bypass Using .NET Reflection

Detects Request to amsiInitFailed that can be used to disable AMSI (Antimalware Scan Interface) Scanning. More information about Antimalware Scan Interface https://docs.microsoft.com/en-us/windows/win32/amsi/antimalware-scan-interface-portal.

Effort: elementary

PowerShell EncodedCommand

Detects popular file extensions in commands obfuscated in base64 run through the EncodedCommand option.

Effort: advanced

Powershell UploadString Function

Powershell's uploadXXX functions are a category of methods which can be used to exfiltrate data through native means on a Windows host.

Effort: intermediate

Process Memory Dump Using Comsvcs

Detects the use of comsvcs in command line to dump a specific proces memory. This techinique is widlely used by attackers for privilege escalation and pivot.

Effort: elementary

Process Trace Alteration

PTrace syscall provides a means by which one process ("tracer") may observe and control the execution of another process ("tracee") and examine and change the tracee's memory and registers. Attacker might want to abuse ptrace functionnality to analyse memory process. It requires to be admin or set ptrace_scope to 0 to allow all user to trace any process.

Effort: advanced

Python HTTP Server

Detects command used to start a Simple HTTP server in Python. Threat actors could use it for data extraction, hosting a webshell or else.

Effort: intermediate

Qakbot Persistence Using Schtasks

Detects possible Qakbot persistence using schtasks.

Effort: intermediate

Raccine Uninstall

Detects commands that indicate a Raccine removal from an end system. Raccine is a free ransomware protection tool.

Effort: elementary

RedMimicry Winnti Playbook Registry Manipulation

Detects actions caused by the RedMimicry Winnti playbook. Logging for Registry events is needed in the Sysmon configuration (events 12 and 13).

Effort: elementary

Rubeus Tool Command-line

Detects command line parameters used by Rubeus, a toolset to interact with Kerberos and abuse it.

Effort: advanced

SOCKS Tunneling Tool

Detects the usage of a SOCKS tunneling tool, often used by threat actors. These tools often use the socks5 commandline argument, however socks4 can sometimes be used as well. Unfortunately, socks alone (without any number) triggered too many false positives.

Effort: intermediate

Socat Relaying Socket

Socat is a linux tool used to relay local socket or internal network connection, this technics is often used by attacker to bypass security equipment such as firewall

Effort: intermediate

Socat Reverse Shell Detection

Socat is a linux tool used to relay or open reverse shell that is often used by attacker to bypass security equipment

Effort: intermediate

Spyware Persistence Using Schtasks

Detects possible Agent Tesla or Formbook persistence using schtasks. The name of the scheduled task used by these malware is very specific (Updates/randomstring).

Effort: intermediate

Suncrypt Parameters

Detects SunCrypt ransomware's parameters, most of which are unique.

Effort: elementary

Suspicious Cmd File Copy Command To Network Share

Copy suspicious files through Windows cmd prompt to network share

Effort: intermediate

Suspicious DLL Loading By Ordinal

Detects suspicious DLL Loading by ordinal number in a non legitimate or rare folders. For example, Sofacy (APT28) used this technique to load their Trojan in a campaign of 2018.

Effort: intermediate

Suspicious Netsh DLL Persistence

Detects persitence via netsh helper. Netsh interacts with other operating system components using dynamic-link library (DLL) files. Adversaries may establish persistence by executing malicious content triggered by Netsh Helper DLLs.

Effort: elementary

Suspicious Network Args In Command Line

Detection on suspicious network arguments in processes command lines using HTTP schema with port 443.

Effort: intermediate

Suspicious PowerShell Invocations - Specific

Detects suspicious PowerShell invocation command parameters

Effort: intermediate

Suspicious PrinterPorts Creation (CVE-2020-1048)

Detects new commands that add new printer port which point to suspicious file

Effort: advanced

Suspicious Taskkill Command

Detects rare taskkill command being used. It could be related to Baby Shark malware.

Effort: intermediate

Suspicious Windows Defender Exclusion Command

Detects PowerShell commands aiming to exclude path, process, IP address, or extension from scheduled and real-time scanning. These commands can be used by attackers or malware to avoid being detected by Windows Defender. Depending on the environment and the installed software, this detection rule could raise false positives. We recommend customizing this rule by filtering legitimate processes that use Windows Defender exclusion command in your environment.

Effort: master

Suspicious Windows Installer Execution

Detects suspicious execution of the Windows Installer service (msiexec.exe) which could be used to install a malicious MSI package hosted on a remote server.

Effort: intermediate

Usage Of Procdump With Common Arguments

Detects the usage of Procdump sysinternals tool with some common arguments and followed by common patterns.

Effort: intermediate

WAF Block Rule

Detects when one of WAF rule blocked an HTTP request

Effort: master

WMI Install Of Binary

Detection of WMI used to install a binary on the host. It is often used by attackers as a signed binary to infect an host.

Effort: elementary

WMIC Uninstall Product

Detects products being uninstalled using WMIC command.

Effort: intermediate

WiFi Credentials Harvesting Using Netsh

Detects the harvesting of WiFi credentials using netsh.exe, used in particular by Agent Tesla (RAT) and Turla Mosquito (RAT)

Effort: elementary

Windows Defender Disabled

The rule detects attempts to deactivate/disable Windows Defender through command line or registry. To fully use this rule Windows Registry logging is needed. This can be done for instance using Sysmon with Event IDs 12,13 and 14 (and adding the correct path in its configuration).

Effort: intermediate

Windows Defender Disabled Base64 Encoded

Detects attempts to deactivate/disable Windows Defender through base64 encoded PowerShell command line.

Effort: elementary

Windows Defender History Directory Deleted

Windows Defender history directory has been deleted. Could be an attempt by an attacker to remove its traces.

Effort: elementary

Windows Defender Set-MpPreference Base64 Encoded

Detects changes of preferences for Windows Defender scan and updates. Configure Windows Defender using base64-encoded commands is suspicious and could be related to malicious activities.

Effort: intermediate

Windows Defender Signatures Removed With MpCmdRun

Detects attempts to remove Windows Defender Signatures using MpCmdRun legitimate Windows Defender executable. No signatures mean Windows Defender will be less effective (or completely useless depending on the option used).

Effort: elementary

Windows Firewall Changes

Detects changes on Windows Firewall configuration

Effort: master

Wmic Service Call

Detects either remote or local code execution using wmic tool.

Effort: intermediate

XCopy Suspicious Usage

Detects the usage of xcopy with suspicious command line options (used by Judgment Panda APT in the past). The rule is based on command line only in case xcopy is renamed.

Effort: advanced

Event Categories

The following table lists the data source offered by this integration.

Data Source	Description
`Authentication logs`	From system module, login dataset retrieve User logins, logouts, and system boots
`File monitoring`	From audit module, the file metric-set sends events when a file is changed (created, updated, or deleted) on disk. The events contain file metadata and hashes
`Process monitoring`	From system module, process dataset retrieve Started and stopped processes
`Process use of network`	From system module, socket dataset retrieve Opened and Closed sockets

Event Samples

Find below few samples of events and how they are normalized by SEKOIA.IO.

example1.jsonexample10.jsonexample11.jsonexample12.jsonexample13.jsonexample2.jsonexample3.jsonexample4.jsonexample5.jsonexample6.jsonexample7.jsonexample8.jsonexample9.json

{
    "message": "{\"@timestamp\":\"2021-01-01T00:01:01.000Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.13.0\"},\"event\":{\"module\":\"system\",\"dataset\":\"process\",\"kind\":\"event\",\"category\":[\"process\"],\"type\":[\"end\"],\"action\":\"process_stopped\"},\"process\":{\"working_directory\":\"/my/directory\",\"start\":\"2021-01-01T00:01:01.000Z\",\"name\":\"smtp\",\"entity_id\":\"AZERTY123456789\",\"ppid\":1457,\"executable\":\"/usr/lib/postfix/sbin/smtp\",\"pid\":123123,\"args\":[\"smtp\",\"-t\",\"unix\",\"-u\",\"-c\"],\"hash\":{\"sha1\":\"53fe0c00019fb177e43c7ac214f466f01158384e\"}},\"message\":\"Process smtp (PID: 123123) by user postfix STOPPED\",\"user\":{\"effective\":{\"id\":\"999\",\"group\":{\"id\":\"222\"}},\"saved\":{\"id\":\"999\",\"group\":{\"id\":\"222\"}},\"name\":\"postfix\",\"id\":\"999\",\"group\":{\"id\":\"222\",\"name\":\"postfix\"}},\"service\":{\"type\":\"system\"},\"ecs\":{\"version\":\"1.9.0\"},\"host\":{\"name\":\"fame\"},\"agent\":{\"hostname\":\"fame\",\"ephemeral_id\":\"qsdfghjklm-1111-2222-3333-azertyuiop\",\"id\":\"wxcvbn-010101-121212-4444-azertyuiop\",\"name\":\"fame\",\"type\":\"auditbeat\",\"version\":\"7.13.0\"}}",
    "event": {
        "kind": "event",
        "module": "system",
        "category": [
            "process"
        ],
        "type": [
            "end"
        ],
        "action": "process_stopped"
    },
    "agent": {
        "hostname": "fame",
        "ephemeral_id": "qsdfghjklm-1111-2222-3333-azertyuiop",
        "id": "wxcvbn-010101-121212-4444-azertyuiop",
        "name": "fame",
        "type": "auditbeat",
        "version": "7.13.0"
    },
    "auditbeat": {
        "message": "Process smtp (PID: 123123) by user postfix STOPPED"
    },
    "auditd": {
        "user": {
            "saved": {
                "id": "999",
                "group": {
                    "id": "222"
                }
            },
            "group": {
                "id": "222"
            }
        }
    },
    "host": {
        "name": "fame"
    },
    "log": {
        "hostname": "fame"
    },
    "process": {
        "working_directory": "/my/directory",
        "start": "2021-01-01T00:01:01.000Z",
        "name": "smtp",
        "entity_id": "AZERTY123456789",
        "executable": "/usr/lib/postfix/sbin/smtp",
        "pid": 123123,
        "args": [
            "smtp",
            "-t",
            "unix",
            "-u",
            "-c"
        ],
        "hash": {
            "sha1": "53fe0c00019fb177e43c7ac214f466f01158384e"
        },
        "parent": {
            "pid": 1457
        },
        "command_line": "smtp -t unix -u -c"
    },
    "service": {
        "type": "system"
    },
    "@timestamp": "2021-01-01T00:01:01.000Z",
    "user": {
        "effective": {
            "id": "999",
            "group": {
                "id": "222"
            }
        },
        "saved": {
            "group": {
                "id": "222"
            }
        },
        "name": "postfix",
        "id": "999",
        "group": {
            "id": "222",
            "name": "postfix"
        }
    },
    "related": {
        "hash": [
            "53fe0c00019fb177e43c7ac214f466f01158384e"
        ],
        "user": [
            "postfix"
        ]
    }
}

{
    "message": "{\"@timestamp\":\"2021-11-09T17:39:26.389Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.15.1\"},\"process\":{\"ppid\":18470,\"title\":\"/opt/google/chrome/chrome --type=zygote --enable-crashpad --crashpad-handler-pid=18479 --enable-crash-reporter=, --change-stack-\",\"name\":\"chrome\",\"executable\":\"/opt/google/chrome/chrome\",\"working_directory\":\"/home/housetodd\",\"pid\":18488},\"auditd\":{\"session\":\"3\",\"summary\":{\"actor\":{\"primary\":\"housetodd\",\"secondary\":\"housetodd\"},\"object\":{\"primary\":\"/proc/1/oom_score_adj\",\"type\":\"file\"},\"how\":\"/opt/google/chrome/chrome\"},\"paths\":[{\"cap_fe\":\"0\",\"cap_fver\":\"0\",\"inode\":\"16064\",\"name\":\"/proc/1/\",\"ogid\":\"0\",\"ouid\":\"0\",\"rdev\":\"00:00\",\"cap_fi\":\"0000000000000000\",\"cap_fp\":\"0000000000000000\",\"dev\":\"00:04\",\"item\":\"0\",\"mode\":\"040555\",\"nametype\":\"PARENT\"},{\"nametype\":\"NORMAL\",\"ogid\":\"0\",\"ouid\":\"0\",\"cap_fe\":\"0\",\"dev\":\"00:04\",\"item\":\"1\",\"mode\":\"0100644\",\"name\":\"/proc/1/oom_score_adj\",\"rdev\":\"00:00\",\"cap_fi\":\"0000000000000000\",\"cap_fp\":\"0000000000000000\",\"cap_fver\":\"0\",\"inode\":\"25973\"}],\"message_type\":\"syscall\",\"sequence\":9052,\"result\":\"fail\",\"data\":{\"tty\":\"(none)\",\"exit\":\"EACCES\",\"a0\":\"7ffc1bfcdfa0\",\"a3\":\"7ffc1bfcde00\",\"a2\":\"55881de610b8\",\"a1\":\"1b6\",\"arch\":\"x86_64\",\"syscall\":\"creat\"}},\"event\":{\"module\":\"auditd\",\"category\":[\"file\"],\"action\":\"opened-file\",\"outcome\":\"failure\",\"kind\":\"event\",\"type\":[\"creation\"]},\"user\":{\"filesystem\":{\"id\":\"5511617b-5ca7-4dd5-bb80-d8590dff4430\",\"group\":{\"id\":\"5511617b-5ca7-4dd5-bb80-d8590dff4430\",\"name\":\"housetodd\"},\"name\":\"housetodd\"},\"name\":\"housetodd\",\"audit\":{\"id\":\"5511617b-5ca7-4dd5-bb80-d8590dff4430\",\"name\":\"housetodd\"},\"saved\":{\"group\":{\"id\":\"5511617b-5ca7-4dd5-bb80-d8590dff4430\",\"name\":\"housetodd\"},\"id\":\"5511617b-5ca7-4dd5-bb80-d8590dff4430\",\"name\":\"housetodd\"},\"group\":{\"id\":\"5511617b-5ca7-4dd5-bb80-d8590dff4430\",\"name\":\"housetodd\"},\"id\":\"5511617b-5ca7-4dd5-bb80-d8590dff4430\"},\"host\":{\"name\":\"xps-housetodd\",\"ip\":[\"144.1.237.149\"],\"mac\":[\"22:69:ae:27:fe:66\"],\"hostname\":\"xps-housetodd\",\"architecture\":\"x86_64\",\"os\":{\"family\":\"debian\",\"name\":\"Ubuntu\",\"kernel\":\"4.15.0-161-generic\",\"codename\":\"bionic\",\"type\":\"linux\",\"platform\":\"ubuntu\",\"version\":\"18.04.6 LTS (Bionic Beaver)\"},\"id\":\"7dd912136af040e4a6ea4f683010b824\",\"containerized\":false},\"file\":{\"gid\":\"0\",\"owner\":\"housetodd\",\"group\":\"housetodd\",\"path\":\"/proc/1/oom_score_adj\",\"device\":\"00:00\",\"inode\":\"25973\",\"mode\":\"0644\",\"uid\":\"0\"},\"tags\":[\"access\"],\"service\":{\"type\":\"auditd\"},\"ecs\":{\"version\":\"1.11.0\"},\"agent\":{\"version\":\"7.15.1\",\"hostname\":\"xps-housetodd\",\"ephemeral_id\":\"f1ac5b09-4f0c-42cf-b9f7-f854eeae073a\",\"id\":\"e9872892-b999-4ad5-83da-d6ec9dbc1f81\",\"name\":\"xps-housetodd\",\"type\":\"auditbeat\"}}",
    "event": {
        "kind": "event",
        "module": "auditd",
        "category": [
            "file"
        ],
        "type": [
            "creation"
        ],
        "action": "opened-file"
    },
    "agent": {
        "version": "7.15.1",
        "hostname": "xps-housetodd",
        "ephemeral_id": "f1ac5b09-4f0c-42cf-b9f7-f854eeae073a",
        "id": "e9872892-b999-4ad5-83da-d6ec9dbc1f81",
        "name": "xps-housetodd",
        "type": "auditbeat"
    },
    "auditbeat": {
        "auditd": {
            "paths": [
                {},
                {}
            ]
        },
        "tags": [
            "access"
        ]
    },
    "auditd": {
        "session": "3",
        "summary": {
            "actor": {
                "primary": "housetodd",
                "secondary": "housetodd"
            },
            "object": {
                "primary": "/proc/1/oom_score_adj",
                "type": "file"
            },
            "how": "/opt/google/chrome/chrome"
        },
        "paths": [
            {
                "cap_fe": "0",
                "cap_fver": "0",
                "inode": "16064",
                "name": "/proc/1/",
                "ogid": "0",
                "ouid": "0",
                "rdev": "00:00",
                "cap_fi": "0000000000000000",
                "cap_fp": "0000000000000000",
                "dev": "00:04",
                "item": "0",
                "mode": "040555",
                "nametype": "PARENT"
            },
            {
                "nametype": "NORMAL",
                "ogid": "0",
                "ouid": "0",
                "cap_fe": "0",
                "dev": "00:04",
                "item": "1",
                "mode": "0100644",
                "name": "/proc/1/oom_score_adj",
                "rdev": "00:00",
                "cap_fi": "0000000000000000",
                "cap_fp": "0000000000000000",
                "cap_fver": "0",
                "inode": "25973"
            }
        ],
        "message_type": "syscall",
        "sequence": 9052,
        "result": "fail",
        "data": {
            "tty": "(none)",
            "exit": "EACCES",
            "a0": "7ffc1bfcdfa0",
            "a3": "7ffc1bfcde00",
            "a2": "55881de610b8",
            "a1": "1b6",
            "arch": "x86_64",
            "syscall": "creat"
        },
        "user": {
            "saved": {
                "group": {
                    "id": "5511617b-5ca7-4dd5-bb80-d8590dff4430",
                    "name": "housetodd"
                },
                "id": "5511617b-5ca7-4dd5-bb80-d8590dff4430",
                "name": "housetodd"
            },
            "group": {
                "id": "5511617b-5ca7-4dd5-bb80-d8590dff4430"
            }
        }
    },
    "file": {
        "gid": "0",
        "owner": "housetodd",
        "group": "housetodd",
        "path": "/proc/1/oom_score_adj",
        "device": "00:00",
        "inode": "25973",
        "mode": "0644",
        "uid": "0"
    },
    "host": {
        "name": "xps-housetodd",
        "ip": [
            "144.1.237.149"
        ],
        "mac": [
            "22:69:ae:27:fe:66"
        ],
        "hostname": "xps-housetodd",
        "architecture": "x86_64",
        "os": {
            "family": "debian",
            "name": "Ubuntu",
            "kernel": "4.15.0-161-generic",
            "codename": "bionic",
            "type": "linux",
            "platform": "ubuntu",
            "version": "18.04.6 LTS (Bionic Beaver)"
        },
        "id": "7dd912136af040e4a6ea4f683010b824",
        "containerized": false
    },
    "log": {
        "hostname": "xps-housetodd"
    },
    "process": {
        "title": "/opt/google/chrome/chrome --type=zygote --enable-crashpad --crashpad-handler-pid=18479 --enable-crash-reporter=, --change-stack-",
        "name": "chrome",
        "executable": "/opt/google/chrome/chrome",
        "working_directory": "/home/housetodd",
        "pid": 18488,
        "parent": {
            "pid": 18470
        }
    },
    "service": {
        "type": "auditd"
    },
    "@timestamp": "2021-11-09T17:39:26.389Z",
    "user": {
        "filesystem": {
            "id": "5511617b-5ca7-4dd5-bb80-d8590dff4430",
            "group": {
                "id": "5511617b-5ca7-4dd5-bb80-d8590dff4430",
                "name": "housetodd"
            },
            "name": "housetodd"
        },
        "name": "housetodd",
        "audit": {
            "id": "5511617b-5ca7-4dd5-bb80-d8590dff4430",
            "name": "housetodd"
        },
        "saved": {
            "group": {
                "id": "5511617b-5ca7-4dd5-bb80-d8590dff4430"
            }
        },
        "group": {
            "id": "5511617b-5ca7-4dd5-bb80-d8590dff4430",
            "name": "housetodd"
        },
        "id": "5511617b-5ca7-4dd5-bb80-d8590dff4430"
    },
    "related": {
        "user": [
            "housetodd"
        ],
        "ip": [
            "144.1.237.149"
        ],
        "hosts": [
            "xps-housetodd"
        ]
    }
}

{
    "message": "{\"@timestamp\":\"2021-11-09T19:07:37.325Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.15.1\"},\"event\":{\"outcome\":\"unknown\",\"kind\":\"event\",\"type\":[\"info\"],\"module\":\"auditd\",\"category\":[\"file\"],\"action\":\"violated-seccomp-policy\"},\"user\":{\"id\":\"56d2c11c-9371-4617-bac3-2c18e86042c6\",\"audit\":{\"id\":\"56d2c11c-9371-4617-bac3-2c18e86042c6\",\"name\":\"UWWL21LVdEVmqrbT\"},\"group\":{\"id\":\"56d2c11c-9371-4617-bac3-2c18e86042c6\",\"name\":\"UWWL21LVdEVmqrbT\"},\"name\":\"UWWL21LVdEVmqrbT\"},\"process\":{\"name\":\"ThreadPoolSingl\",\"executable\":\"/opt/google/chrome/chrome\",\"pid\":2720},\"host\":{\"mac\":[\"0c:5d:c0:dc:1f:3f\"],\"hostname\":\"xps-UWWL21LVdEVmqrbT\",\"architecture\":\"x86_64\",\"os\":{\"family\":\"debian\",\"name\":\"Ubuntu\",\"kernel\":\"4.15.0-161-generic\",\"codename\":\"bionic\",\"type\":\"linux\",\"platform\":\"ubuntu\",\"version\":\"18.04.6 LTS (Bionic Beaver)\"},\"id\":\"7dd912136af040e4a6ea4f683010b824\",\"containerized\":false,\"ip\":[\"43.161.42.208\"],\"name\":\"xps-UWWL21LVdEVmqrbT\"},\"agent\":{\"id\":\"e9872892-b999-4ad5-83da-d6ec9dbc1f81\",\"name\":\"xps-UWWL21LVdEVmqrbT\",\"type\":\"auditbeat\",\"version\":\"7.15.1\",\"hostname\":\"xps-UWWL21LVdEVmqrbT\",\"ephemeral_id\":\"f1ac5b09-4f0c-42cf-b9f7-f854eeae073a\"},\"ecs\":{\"version\":\"1.11.0\"},\"auditd\":{\"session\":\"2\",\"summary\":{\"how\":\"/opt/google/chrome/chrome\",\"actor\":{\"primary\":\"UWWL21LVdEVmqrbT\",\"secondary\":\"UWWL21LVdEVmqrbT\"},\"object\":{\"primary\":\"stat\",\"type\":\"process\"}},\"message_type\":\"seccomp\",\"sequence\":12522,\"result\":\"unknown\",\"data\":{\"code\":\"0x50000\",\"syscall\":\"stat\",\"compat\":\"0\",\"ip\":\"0x7fe0a0df1845\",\"arch\":\"x86_64\",\"sig\":\"0\"}},\"service\":{\"type\":\"auditd\"}}",
    "event": {
        "kind": "event",
        "module": "auditd",
        "category": [
            "file"
        ],
        "type": [
            "info"
        ],
        "action": "violated-seccomp-policy"
    },
    "agent": {
        "id": "e9872892-b999-4ad5-83da-d6ec9dbc1f81",
        "name": "xps-UWWL21LVdEVmqrbT",
        "type": "auditbeat",
        "version": "7.15.1",
        "hostname": "xps-UWWL21LVdEVmqrbT",
        "ephemeral_id": "f1ac5b09-4f0c-42cf-b9f7-f854eeae073a"
    },
    "auditbeat": {},
    "auditd": {
        "session": "2",
        "summary": {
            "how": "/opt/google/chrome/chrome",
            "actor": {
                "primary": "UWWL21LVdEVmqrbT",
                "secondary": "UWWL21LVdEVmqrbT"
            },
            "object": {
                "primary": "stat",
                "type": "process"
            }
        },
        "message_type": "seccomp",
        "sequence": 12522,
        "result": "unknown",
        "data": {
            "code": "0x50000",
            "syscall": "stat",
            "compat": "0",
            "ip": "0x7fe0a0df1845",
            "arch": "x86_64",
            "sig": "0"
        },
        "user": {
            "group": {
                "id": "56d2c11c-9371-4617-bac3-2c18e86042c6"
            }
        }
    },
    "host": {
        "mac": [
            "0c:5d:c0:dc:1f:3f"
        ],
        "hostname": "xps-UWWL21LVdEVmqrbT",
        "architecture": "x86_64",
        "os": {
            "family": "debian",
            "name": "Ubuntu",
            "kernel": "4.15.0-161-generic",
            "codename": "bionic",
            "type": "linux",
            "platform": "ubuntu",
            "version": "18.04.6 LTS (Bionic Beaver)"
        },
        "id": "7dd912136af040e4a6ea4f683010b824",
        "containerized": false,
        "ip": [
            "43.161.42.208"
        ],
        "name": "xps-UWWL21LVdEVmqrbT"
    },
    "log": {
        "hostname": "xps-UWWL21LVdEVmqrbT"
    },
    "process": {
        "name": "ThreadPoolSingl",
        "executable": "/opt/google/chrome/chrome",
        "pid": 2720
    },
    "service": {
        "type": "auditd"
    },
    "@timestamp": "2021-11-09T19:07:37.325Z",
    "user": {
        "id": "56d2c11c-9371-4617-bac3-2c18e86042c6",
        "audit": {
            "id": "56d2c11c-9371-4617-bac3-2c18e86042c6",
            "name": "UWWL21LVdEVmqrbT"
        },
        "group": {
            "id": "56d2c11c-9371-4617-bac3-2c18e86042c6",
            "name": "UWWL21LVdEVmqrbT"
        },
        "name": "UWWL21LVdEVmqrbT"
    },
    "related": {
        "ip": [
            "43.161.42.208"
        ],
        "hosts": [
            "xps-UWWL21LVdEVmqrbT"
        ],
        "user": [
            "UWWL21LVdEVmqrbT"
        ]
    }
}

{
    "message": "{\"@timestamp\":\"2021-11-09T18:35:01.754Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.15.1\"},\"related\":{\"user\":[\"root\"]},\"service\":{\"type\":\"auditd\"},\"event\":{\"module\":\"auditd\",\"category\":[\"authentication\"],\"action\":\"changed-login-id-to\",\"outcome\":\"success\",\"kind\":\"event\",\"type\":[\"start\"]},\"user\":{\"audit\":{\"id\":\"0\",\"name\":\"root\"},\"effective\":{\"id\":\"0\",\"name\":\"root\"}},\"ecs\":{\"version\":\"1.11.0\"},\"host\":{\"containerized\":false,\"ip\":[\"66.253.230.251\"],\"mac\":[\"5e:55:38:73:40:a4\"],\"hostname\":\"web-65\",\"architecture\":\"x86_64\",\"os\":{\"codename\":\"bionic\",\"type\":\"linux\",\"platform\":\"ubuntu\",\"version\":\"18.04.6 LTS (Bionic Beaver)\",\"family\":\"debian\",\"name\":\"Ubuntu\",\"kernel\":\"4.15.0-161-generic\"},\"name\":\"web-65\",\"id\":\"7dd912136af040e4a6ea4f683010b824\"},\"agent\":{\"ephemeral_id\":\"f1ac5b09-4f0c-42cf-b9f7-f854eeae073a\",\"id\":\"e9872892-b999-4ad5-83da-d6ec9dbc1f81\",\"name\":\"web-65\",\"type\":\"auditbeat\",\"version\":\"7.15.1\",\"hostname\":\"web-65\"},\"process\":{\"pid\":20899},\"auditd\":{\"data\":{\"tty\":\"(none)\",\"old-ses\":\"4294967295\"},\"session\":\"436\",\"summary\":{\"actor\":{\"primary\":\"unset\",\"secondary\":\"root\"},\"object\":{\"primary\":\"0\",\"type\":\"user-session\"}},\"message_type\":\"login\",\"sequence\":11578,\"result\":\"success\"}}",
    "event": {
        "kind": "event",
        "module": "auditd",
        "category": [
            "authentication"
        ],
        "type": [
            "start"
        ],
        "action": "changed-login-id-to"
    },
    "agent": {
        "ephemeral_id": "f1ac5b09-4f0c-42cf-b9f7-f854eeae073a",
        "id": "e9872892-b999-4ad5-83da-d6ec9dbc1f81",
        "name": "web-65",
        "type": "auditbeat",
        "version": "7.15.1",
        "hostname": "web-65"
    },
    "auditbeat": {},
    "auditd": {
        "data": {
            "tty": "(none)",
            "old-ses": "4294967295"
        },
        "session": "436",
        "summary": {
            "actor": {
                "primary": "unset",
                "secondary": "root"
            },
            "object": {
                "primary": "0",
                "type": "user-session"
            }
        },
        "message_type": "login",
        "sequence": 11578,
        "result": "success",
        "user": {}
    },
    "host": {
        "containerized": false,
        "ip": [
            "66.253.230.251"
        ],
        "mac": [
            "5e:55:38:73:40:a4"
        ],
        "hostname": "web-65",
        "architecture": "x86_64",
        "os": {
            "codename": "bionic",
            "type": "linux",
            "platform": "ubuntu",
            "version": "18.04.6 LTS (Bionic Beaver)",
            "family": "debian",
            "name": "Ubuntu",
            "kernel": "4.15.0-161-generic"
        },
        "name": "web-65",
        "id": "7dd912136af040e4a6ea4f683010b824"
    },
    "log": {
        "hostname": "web-65"
    },
    "process": {
        "pid": 20899
    },
    "related": {
        "ip": [
            "66.253.230.251"
        ],
        "hosts": [
            "web-65"
        ]
    },
    "service": {
        "type": "auditd"
    },
    "@timestamp": "2021-11-09T18:35:01.754Z",
    "user": {
        "audit": {
            "id": "0",
            "name": "root"
        },
        "effective": {
            "id": "0",
            "name": "root"
        }
    }
}

{
    "message": "{\"@timestamp\":\"2021-11-09T19:02:33.866Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.15.1\"},\"event\":{\"kind\":\"event\",\"type\":[\"start\"],\"module\":\"auditd\",\"category\":[\"process\"],\"action\":\"started-service\",\"outcome\":\"success\"},\"user\":{\"id\":\"16bb03ba-2e90-4c98-a5c8-c3d8b8b52c1e\",\"name\":\"X9PzJKityWAFaA5i\"},\"process\":{\"pid\":1,\"name\":\"systemd\",\"executable\":\"/lib/systemd/systemd\"},\"auditd\":{\"result\":\"success\",\"data\":{\"unit\":\"anacron\"},\"summary\":{\"how\":\"/lib/systemd/systemd\",\"actor\":{\"primary\":\"unset\",\"secondary\":\"X9PzJKityWAFaA5i\"},\"object\":{\"primary\":\"anacron\",\"type\":\"service\"}},\"message_type\":\"service_start\",\"sequence\":12295},\"service\":{\"type\":\"auditd\"},\"ecs\":{\"version\":\"1.11.16bb03ba-2e90-4c98-a5c8-c3d8b8b52c1e\"},\"host\":{\"hostname\":\"LCPmbaxBgGyJj8VH\",\"architecture\":\"x86_64\",\"os\":{\"name\":\"Ubuntu\",\"kernel\":\"4.15.0-161-generic\",\"codename\":\"bionic\",\"type\":\"linux\",\"platform\":\"ubuntu\",\"version\":\"18.04.6 LTS (Bionic Beaver)\",\"family\":\"debian\"},\"name\":\"LCPmbaxBgGyJj8VH\",\"id\":\"7dd912136af040e4a6ea4f683010b824\",\"containerized\":false,\"ip\":[\"87.138.107.154\"],\"mac\":[\"09:d0:5f:99:43:f6\"]},\"agent\":{\"hostname\":\"LCPmbaxBgGyJj8VH\",\"ephemeral_id\":\"f1ac5b09-4f0c-42cf-b9f7-f854eeae073a\",\"id\":\"e9872892-b999-4ad5-83da-d6ec9dbc1f81\",\"name\":\"LCPmbaxBgGyJj8VH\",\"type\":\"auditbeat\",\"version\":\"7.15.1\"}}",
    "event": {
        "kind": "event",
        "module": "auditd",
        "category": [
            "process"
        ],
        "type": [
            "start"
        ],
        "action": "started-service"
    },
    "agent": {
        "hostname": "LCPmbaxBgGyJj8VH",
        "ephemeral_id": "f1ac5b09-4f0c-42cf-b9f7-f854eeae073a",
        "id": "e9872892-b999-4ad5-83da-d6ec9dbc1f81",
        "name": "LCPmbaxBgGyJj8VH",
        "type": "auditbeat",
        "version": "7.15.1"
    },
    "auditbeat": {},
    "auditd": {
        "result": "success",
        "data": {
            "unit": "anacron"
        },
        "summary": {
            "how": "/lib/systemd/systemd",
            "actor": {
                "primary": "unset",
                "secondary": "X9PzJKityWAFaA5i"
            },
            "object": {
                "primary": "anacron",
                "type": "service"
            }
        },
        "message_type": "service_start",
        "sequence": 12295,
        "user": {}
    },
    "host": {
        "hostname": "LCPmbaxBgGyJj8VH",
        "architecture": "x86_64",
        "os": {
            "name": "Ubuntu",
            "kernel": "4.15.0-161-generic",
            "codename": "bionic",
            "type": "linux",
            "platform": "ubuntu",
            "version": "18.04.6 LTS (Bionic Beaver)",
            "family": "debian"
        },
        "name": "LCPmbaxBgGyJj8VH",
        "id": "7dd912136af040e4a6ea4f683010b824",
        "containerized": false,
        "ip": [
            "87.138.107.154"
        ],
        "mac": [
            "09:d0:5f:99:43:f6"
        ]
    },
    "log": {
        "hostname": "LCPmbaxBgGyJj8VH"
    },
    "process": {
        "pid": 1,
        "name": "systemd",
        "executable": "/lib/systemd/systemd"
    },
    "service": {
        "type": "auditd"
    },
    "@timestamp": "2021-11-09T19:02:33.866Z",
    "user": {
        "id": "16bb03ba-2e90-4c98-a5c8-c3d8b8b52c1e",
        "name": "X9PzJKityWAFaA5i"
    },
    "related": {
        "ip": [
            "87.138.107.154"
        ],
        "hosts": [
            "LCPmbaxBgGyJj8VH"
        ],
        "user": [
            "X9PzJKityWAFaA5i"
        ]
    }
}

{
    "message": "{\"@timestamp\":\"2021-01-01T00:01:01.000Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.13.0\"},\"message\":\"Process containerd (PID: 1197) by user root is RUNNING\",\"user\":{\"group\":{\"name\":\"root\",\"id\":\"0\"},\"effective\":{\"id\":\"0\",\"group\":{\"id\":\"0\"}},\"saved\":{\"id\":\"0\",\"group\":{\"id\":\"0\"}},\"name\":\"root\",\"id\":\"0\"},\"ecs\":{\"version\":\"1.9.0\"},\"host\":{\"name\":\"fame\"},\"agent\":{\"hostname\":\"fame\",\"ephemeral_id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"name\":\"fame\",\"type\":\"auditbeat\",\"version\":\"7.13.0\"},\"service\":{\"type\":\"system\"},\"event\":{\"action\":\"existing_process\",\"id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"module\":\"system\",\"dataset\":\"process\",\"kind\":\"state\",\"category\":[\"process\"],\"type\":[\"info\"]},\"process\":{\"args\":[\"containerd\"],\"pid\":1197,\"ppid\":1,\"working_directory\":\"/\",\"entity_id\":\"AZERTYqsdfghjklm\",\"name\":\"containerd\",\"executable\":\"/usr/bin/containerd\",\"start\":\"2021-01-01T00:01:01.000Z\",\"hash\":{\"sha1\":\"azertyuiop1234567890\"}, \"command_line\": \"/usr/bin/containerd\"}}",
    "event": {
        "kind": "state",
        "module": "system",
        "category": [
            "process"
        ],
        "type": [
            "info"
        ],
        "action": "existing_process"
    },
    "agent": {
        "hostname": "fame",
        "ephemeral_id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "name": "fame",
        "type": "auditbeat",
        "version": "7.13.0"
    },
    "auditbeat": {
        "message": "Process containerd (PID: 1197) by user root is RUNNING"
    },
    "auditd": {
        "user": {
            "group": {
                "id": "0"
            },
            "saved": {
                "id": "0",
                "group": {
                    "id": "0"
                }
            }
        }
    },
    "host": {
        "name": "fame"
    },
    "log": {
        "hostname": "fame"
    },
    "process": {
        "args": [
            "containerd"
        ],
        "pid": 1197,
        "working_directory": "/",
        "entity_id": "AZERTYqsdfghjklm",
        "name": "containerd",
        "executable": "/usr/bin/containerd",
        "start": "2021-01-01T00:01:01.000Z",
        "hash": {
            "sha1": "azertyuiop1234567890"
        },
        "command_line": "/usr/bin/containerd",
        "parent": {
            "pid": 1
        }
    },
    "service": {
        "type": "system"
    },
    "@timestamp": "2021-01-01T00:01:01.000Z",
    "user": {
        "group": {
            "name": "root",
            "id": "0"
        },
        "effective": {
            "id": "0",
            "group": {
                "id": "0"
            }
        },
        "saved": {
            "group": {
                "id": "0"
            }
        },
        "name": "root",
        "id": "0"
    },
    "related": {
        "hash": [
            "azertyuiop1234567890"
        ],
        "user": [
            "root"
        ]
    }
}

{
    "message": "{\"@timestamp\":\"2021-01-01T00:01:01.000Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.13.0\"},\"message\":\"Process unattended-upgr (PID: 1195) by user root is RUNNING\",\"user\":{\"name\":\"root\",\"id\":\"0\",\"group\":{\"id\":\"0\",\"name\":\"root\"},\"effective\":{\"group\":{\"id\":\"0\"},\"id\":\"0\"},\"saved\":{\"id\":\"0\",\"group\":{\"id\":\"0\"}}},\"service\":{\"type\":\"system\"},\"event\":{\"type\":[\"info\"],\"action\":\"existing_process\",\"id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"module\":\"system\",\"dataset\":\"process\",\"kind\":\"state\",\"category\":[\"process\"]},\"process\":{\"args\":[\"/usr/bin/python3\",\"/usr/share/unattended-upgrades/unattended-upgrade-shutdown\",\"--wait-for-signal\"],\"start\":\"2021-01-01T00:01:01.000Z\",\"hash\":{\"sha1\":\"azertyuiop1234567890\"},\"name\":\"unattended-upgr\",\"entity_id\":\"rvSkGilnHCy6yuIZ\",\"pid\":1195,\"ppid\":1,\"executable\":\"/usr/bin/python3.8\",\"working_directory\":\"/\"},\"ecs\":{\"version\":\"1.9.0\"},\"host\":{\"name\":\"fame\"},\"agent\":{\"version\":\"7.13.0\",\"hostname\":\"fame\",\"ephemeral_id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"name\":\"fame\",\"type\":\"auditbeat\"}}",
    "event": {
        "kind": "state",
        "module": "system",
        "category": [
            "process"
        ],
        "type": [
            "info"
        ],
        "action": "existing_process"
    },
    "agent": {
        "version": "7.13.0",
        "hostname": "fame",
        "ephemeral_id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "name": "fame",
        "type": "auditbeat"
    },
    "auditbeat": {
        "message": "Process unattended-upgr (PID: 1195) by user root is RUNNING"
    },
    "auditd": {
        "user": {
            "group": {
                "id": "0"
            },
            "saved": {
                "id": "0",
                "group": {
                    "id": "0"
                }
            }
        }
    },
    "host": {
        "name": "fame"
    },
    "log": {
        "hostname": "fame"
    },
    "process": {
        "args": [
            "/usr/bin/python3",
            "/usr/share/unattended-upgrades/unattended-upgrade-shutdown",
            "--wait-for-signal"
        ],
        "start": "2021-01-01T00:01:01.000Z",
        "hash": {
            "sha1": "azertyuiop1234567890"
        },
        "name": "unattended-upgr",
        "entity_id": "rvSkGilnHCy6yuIZ",
        "pid": 1195,
        "executable": "/usr/bin/python3.8",
        "working_directory": "/",
        "parent": {
            "pid": 1
        },
        "command_line": "/usr/bin/python3 /usr/share/unattended-upgrades/unattended-upgrade-shutdown --wait-for-signal"
    },
    "service": {
        "type": "system"
    },
    "@timestamp": "2021-01-01T00:01:01.000Z",
    "user": {
        "name": "root",
        "id": "0",
        "group": {
            "id": "0",
            "name": "root"
        },
        "effective": {
            "group": {
                "id": "0"
            },
            "id": "0"
        },
        "saved": {
            "group": {
                "id": "0"
            }
        }
    },
    "related": {
        "hash": [
            "azertyuiop1234567890"
        ],
        "user": [
            "root"
        ]
    }
}

{
    "message": "{\"@timestamp\":\"2021-01-01T00:01:01.000Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.13.0\"},\"ecs\":{\"version\":\"1.9.0\"},\"host\":{\"name\":\"fame\"},\"agent\":{\"version\":\"7.13.0\",\"hostname\":\"fame\",\"ephemeral_id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"name\":\"fame\",\"type\":\"auditbeat\"},\"user\":{\"effective\":{\"id\":\"114\",\"group\":{\"id\":\"121\"}},\"saved\":{\"id\":\"114\",\"group\":{\"id\":\"121\"}},\"name\":\"postgres\",\"id\":\"114\",\"group\":{\"name\":\"postgres\",\"id\":\"121\"}},\"service\":{\"type\":\"system\"},\"event\":{\"category\":[\"process\"],\"type\":[\"info\"],\"action\":\"existing_process\",\"id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"module\":\"system\",\"dataset\":\"process\",\"kind\":\"state\"},\"process\":{\"executable\":\"/usr/lib/postgresql/9.5/bin/postgres\",\"ppid\":1231,\"start\":\"2021-01-01T00:01:01.000Z\",\"hash\":{\"sha1\":\"azertyuiop1234567890\"},\"name\":\"postgres\",\"args\":[\"postgres: cuckoo cuckoo 127.0.0.1(45786) idle\"],\"entity_id\":\"azertyuiop\",\"working_directory\":\"/var/lib/postgresql/9.5/main\",\"pid\":207706},\"message\":\"Process postgres (PID: 207706) by user postgres is RUNNING\"}",
    "event": {
        "kind": "state",
        "module": "system",
        "category": [
            "process"
        ],
        "type": [
            "info"
        ],
        "action": "existing_process"
    },
    "agent": {
        "version": "7.13.0",
        "hostname": "fame",
        "ephemeral_id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "name": "fame",
        "type": "auditbeat"
    },
    "auditbeat": {
        "message": "Process postgres (PID: 207706) by user postgres is RUNNING"
    },
    "auditd": {
        "user": {
            "saved": {
                "id": "114",
                "group": {
                    "id": "121"
                }
            },
            "group": {
                "id": "121"
            }
        }
    },
    "host": {
        "name": "fame"
    },
    "log": {
        "hostname": "fame"
    },
    "process": {
        "executable": "/usr/lib/postgresql/9.5/bin/postgres",
        "start": "2021-01-01T00:01:01.000Z",
        "hash": {
            "sha1": "azertyuiop1234567890"
        },
        "name": "postgres",
        "args": [
            "postgres: cuckoo cuckoo 127.0.0.1(45786) idle"
        ],
        "entity_id": "azertyuiop",
        "working_directory": "/var/lib/postgresql/9.5/main",
        "pid": 207706,
        "parent": {
            "pid": 1231
        }
    },
    "service": {
        "type": "system"
    },
    "@timestamp": "2021-01-01T00:01:01.000Z",
    "user": {
        "effective": {
            "id": "114",
            "group": {
                "id": "121"
            }
        },
        "saved": {
            "group": {
                "id": "121"
            }
        },
        "name": "postgres",
        "id": "114",
        "group": {
            "name": "postgres",
            "id": "121"
        }
    },
    "related": {
        "hash": [
            "azertyuiop1234567890"
        ],
        "user": [
            "postgres"
        ]
    }
}

{
    "message": "{\"@timestamp\":\"2021-01-01T00:01:01.000Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.13.0\"},\"related\":{\"ip\":[\"127.0.0.1\",\"127.0.0.1\"]},\"service\":{\"type\":\"system\"},\"ecs\":{\"version\":\"1.9.0\"},\"host\":{\"name\":\"fame\"},\"client\":{\"port\":88888,\"packets\":1,\"bytes\":52,\"ip\":\"127.0.0.1\"},\"system\":{\"audit\":{\"socket\":{\"kernel_sock_address\":\"0xffff8e9955b02300\"}}},\"network\":{\"direction\":\"unknown\",\"type\":\"ipv4\",\"transport\":\"tcp\",\"packets\":2,\"bytes\":84,\"community_id\":\"12345678901234567891234567890\"},\"event\":{\"duration\":116168,\"module\":\"system\",\"kind\":\"event\",\"action\":\"network_flow\",\"type\":[\"info\",\"connection\"],\"dataset\":\"socket\",\"end\":\"2021-01-01T00:01:01.000Z\",\"category\":[\"network\",\"network_traffic\"],\"start\":\"2021-01-01T00:01:01.000Z\"},\"flow\":{\"complete\":false,\"final\":true},\"agent\":{\"version\":\"7.13.0\",\"hostname\":\"fame\",\"ephemeral_id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"name\":\"fame\",\"type\":\"auditbeat\"},\"source\":{\"packets\":1,\"bytes\":52,\"ip\":\"127.0.0.1\",\"port\":88888},\"destination\":{\"port\":11111,\"packets\":1,\"bytes\":32,\"ip\":\"127.0.0.1\"},\"server\":{\"ip\":\"127.0.0.1\",\"port\":11111,\"packets\":1,\"bytes\":32}}",
    "event": {
        "kind": "event",
        "module": "system",
        "category": [
            "network",
            "network_traffic"
        ],
        "type": [
            "info",
            "connection"
        ],
        "action": "network_flow"
    },
    "agent": {
        "version": "7.13.0",
        "hostname": "fame",
        "ephemeral_id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "name": "fame",
        "type": "auditbeat"
    },
    "auditbeat": {},
    "client": {
        "port": 88888,
        "packets": 1,
        "bytes": 52,
        "ip": "127.0.0.1",
        "address": "127.0.0.1"
    },
    "destination": {
        "port": 11111,
        "packets": 1,
        "bytes": 32,
        "ip": "127.0.0.1",
        "address": "127.0.0.1"
    },
    "host": {
        "name": "fame"
    },
    "log": {
        "hostname": "fame"
    },
    "network": {
        "direction": "unknown",
        "type": "ipv4",
        "transport": "tcp",
        "packets": 2,
        "bytes": 84,
        "community_id": "12345678901234567891234567890"
    },
    "related": {
        "ip": [
            "127.0.0.1"
        ]
    },
    "server": {
        "ip": "127.0.0.1",
        "port": 11111,
        "packets": 1,
        "bytes": 32
    },
    "service": {
        "type": "system"
    },
    "source": {
        "packets": 1,
        "bytes": 52,
        "ip": "127.0.0.1",
        "port": 88888,
        "address": "127.0.0.1"
    },
    "system": {},
    "@timestamp": "2021-01-01T00:01:01.000Z"
}

{
    "message": "{\"@timestamp\":\"2021-01-01T00:01:01.000Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.13.0\"},\"user\":{\"group\":{\"name\":\"messagebus\",\"id\":\"110\"},\"effective\":{\"id\":\"106\",\"group\":{\"id\":\"110\"}},\"saved\":{\"group\":{\"id\":\"110\"},\"id\":\"106\"},\"name\":\"messagebus\",\"id\":\"106\"},\"ecs\":{\"version\":\"1.9.0\"},\"host\":{\"name\":\"fame\"},\"agent\":{\"hostname\":\"fame\",\"ephemeral_id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"name\":\"fame\",\"type\":\"auditbeat\",\"version\":\"7.13.0\"},\"service\":{\"type\":\"system\"},\"event\":{\"category\":[\"process\"],\"type\":[\"info\"],\"action\":\"existing_process\",\"id\":\"12345678-azer-1234-a1z2-12qsdfghjklm\",\"module\":\"system\",\"dataset\":\"process\",\"kind\":\"state\"},\"process\":{\"args\":[\"/usr/bin/dbus-daemon\",\"--system\",\"--address=systemd:\",\"--nofork\",\"--nopidfile\",\"--systemd-activation\",\"--syslog-only\"],\"hash\":{\"sha1\":\"azertyuiop1234567890\"},\"entity_id\":\"azertyuiop\",\"working_directory\":\"/\",\"ppid\":1,\"pid\":645,\"start\":\"2021-01-01T00:01:01.000Z\",\"executable\":\"/usr/bin/dbus-daemon\",\"name\":\"dbus-daemon\"},\"message\":\"Process dbus-daemon (PID: 645) by user messagebus is RUNNING\"}",
    "event": {
        "kind": "state",
        "module": "system",
        "category": [
            "process"
        ],
        "type": [
            "info"
        ],
        "action": "existing_process"
    },
    "agent": {
        "hostname": "fame",
        "ephemeral_id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "id": "12345678-azer-1234-a1z2-12qsdfghjklm",
        "name": "fame",
        "type": "auditbeat",
        "version": "7.13.0"
    },
    "auditbeat": {
        "message": "Process dbus-daemon (PID: 645) by user messagebus is RUNNING"
    },
    "auditd": {
        "user": {
            "group": {
                "id": "110"
            },
            "saved": {
                "group": {
                    "id": "110"
                },
                "id": "106"
            }
        }
    },
    "host": {
        "name": "fame"
    },
    "log": {
        "hostname": "fame"
    },
    "process": {
        "args": [
            "/usr/bin/dbus-daemon",
            "--system",
            "--address=systemd:",
            "--nofork",
            "--nopidfile",
            "--systemd-activation",
            "--syslog-only"
        ],
        "hash": {
            "sha1": "azertyuiop1234567890"
        },
        "entity_id": "azertyuiop",
        "working_directory": "/",
        "pid": 645,
        "start": "2021-01-01T00:01:01.000Z",
        "executable": "/usr/bin/dbus-daemon",
        "name": "dbus-daemon",
        "parent": {
            "pid": 1
        },
        "command_line": "/usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only"
    },
    "service": {
        "type": "system"
    },
    "@timestamp": "2021-01-01T00:01:01.000Z",
    "user": {
        "group": {
            "name": "messagebus",
            "id": "110"
        },
        "effective": {
            "id": "106",
            "group": {
                "id": "110"
            }
        },
        "saved": {
            "group": {
                "id": "110"
            }
        },
        "name": "messagebus",
        "id": "106"
    },
    "related": {
        "hash": [
            "azertyuiop1234567890"
        ],
        "user": [
            "messagebus"
        ]
    }
}

{
    "message": "{\"@timestamp\":\"2021-01-01T00:01:01.000Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.13.0\"},\"service\":{\"type\":\"system\"},\"event\":{\"action\":\"existing_process\",\"id\":\"e9c16612-2053-4bc6-86aa-7e04c6114ecc\",\"module\":\"system\",\"dataset\":\"process\",\"kind\":\"state\",\"category\":[\"process\"],\"type\":[\"info\"]},\"process\":{\"executable\":\"/usr/lib/postgresql/9.5/bin/postgres\",\"entity_id\":\"1234zertyui\",\"ppid\":1231,\"start\":\"2021-01-01T00:01:01.000Z\",\"name\":\"postgres\",\"pid\":1234,\"working_directory\":\"/var/lib/postgresql/9.5/main\",\"hash\":{\"sha1\":\"12345678901234567891234567890\"},\"args\":[\"postgres: wal writer process   \"]},\"host\":{\"name\":\"fame\"},\"agent\":{\"ephemeral_id\":\"0101010-abcd-1234-a1b2c3d4e5f6g7h8\",\"id\":\"0101010-abcd-1234-a1b2c3d4e5f6g7h8\",\"name\":\"fame\",\"type\":\"auditbeat\",\"version\":\"7.13.0\",\"hostname\":\"fame\"},\"ecs\":{\"version\":\"1.9.0\"},\"message\":\"Process postgres (PID: 1234) by user postgres is RUNNING\",\"user\":{\"effective\":{\"group\":{\"id\":\"121\"},\"id\":\"114\"},\"saved\":{\"id\":\"114\",\"group\":{\"id\":\"121\"}},\"name\":\"postgres\",\"id\":\"114\",\"group\":{\"id\":\"121\",\"name\":\"postgres\"}}}",
    "event": {
        "kind": "state",
        "module": "system",
        "category": [
            "process"
        ],
        "type": [
            "info"
        ],
        "action": "existing_process"
    },
    "agent": {
        "ephemeral_id": "0101010-abcd-1234-a1b2c3d4e5f6g7h8",
        "id": "0101010-abcd-1234-a1b2c3d4e5f6g7h8",
        "name": "fame",
        "type": "auditbeat",
        "version": "7.13.0",
        "hostname": "fame"
    },
    "auditbeat": {
        "message": "Process postgres (PID: 1234) by user postgres is RUNNING"
    },
    "auditd": {
        "user": {
            "saved": {
                "id": "114",
                "group": {
                    "id": "121"
                }
            },
            "group": {
                "id": "121"
            }
        }
    },
    "host": {
        "name": "fame"
    },
    "log": {
        "hostname": "fame"
    },
    "process": {
        "executable": "/usr/lib/postgresql/9.5/bin/postgres",
        "entity_id": "1234zertyui",
        "start": "2021-01-01T00:01:01.000Z",
        "name": "postgres",
        "pid": 1234,
        "working_directory": "/var/lib/postgresql/9.5/main",
        "hash": {
            "sha1": "12345678901234567891234567890"
        },
        "args": [
            "postgres: wal writer process   "
        ],
        "parent": {
            "pid": 1231
        }
    },
    "service": {
        "type": "system"
    },
    "@timestamp": "2021-01-01T00:01:01.000Z",
    "user": {
        "effective": {
            "group": {
                "id": "121"
            },
            "id": "114"
        },
        "saved": {
            "group": {
                "id": "121"
            }
        },
        "name": "postgres",
        "id": "114",
        "group": {
            "id": "121",
            "name": "postgres"
        }
    },
    "related": {
        "hash": [
            "12345678901234567891234567890"
        ],
        "user": [
            "postgres"
        ]
    }
}

{
    "message": "{\"@timestamp\":\"2021-01-01T00:01:01.000Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.13.0\"},\"destination\":{\"bytes\":123,\"ip\":\"8.8.8.8\",\"port\":53,\"packets\":1},\"event\":{\"end\":\"2021-01-01T00:01:01.000Z\",\"type\":[\"info\",\"connection\"],\"action\":\"network_flow\",\"dataset\":\"socket\",\"kind\":\"event\",\"category\":[\"network\",\"network_traffic\"],\"start\":\"2021-01-01T00:01:01.000Z\",\"duration\":12345,\"module\":\"system\"},\"process\":{\"pid\":9876543,\"name\":\"smtp\",\"args\":[\"smtp\",\"-t\",\"unix\",\"-u\",\"-c\"],\"executable\":\"/usr/lib/postfix/sbin/smtp\",\"created\":\"2021-01-01T00:01:01.000Z\"},\"client\":{\"bytes\":70,\"domain\":\"malware1.viralstudio.org\",\"ip\":\"255.255.255.1\",\"port\":58855,\"packets\":1},\"ecs\":{\"version\":\"1.9.0\"},\"server\":{\"bytes\":123,\"ip\":\"8.8.8.8\",\"port\":53,\"packets\":1},\"source\":{\"domain\":\"malware1.viralstudio.org\",\"ip\":\"255.255.255.1\",\"port\":58855,\"packets\":1,\"bytes\":70},\"network\":{\"transport\":\"udp\",\"packets\":2,\"bytes\":210,\"community_id\":\"azertyuiopsdfghjklm\",\"direction\":\"egress\",\"type\":\"ipv4\"},\"group\":{\"id\":\"0\",\"name\":\"root\"},\"service\":{\"type\":\"system\"},\"host\":{\"name\":\"fame\"},\"agent\":{\"ephemeral_id\":\"0101010-abcd-1234-a1b2c3d4e5f6g7h8\",\"id\":\"123poi-99zz-4qzds099-qsd-azerty\",\"name\":\"fame\",\"type\":\"auditbeat\",\"version\":\"7.13.0\",\"hostname\":\"fame\"},\"flow\":{\"final\":true,\"complete\":false},\"related\":{\"ip\":[\"255.255.255.1\",\"8.8.8.8\"],\"user\":[\"root\"]},\"user\":{\"id\":\"0\",\"name\":\"root\"},\"system\":{\"audit\":{\"socket\":{\"gid\":0,\"euid\":0,\"egid\":0,\"kernel_sock_address\":\"0xffffffffffffff\",\"uid\":0}}}}",
    "event": {
        "kind": "event",
        "module": "system",
        "category": [
            "network",
            "network_traffic"
        ],
        "type": [
            "info",
            "connection"
        ],
        "action": "network_flow"
    },
    "agent": {
        "ephemeral_id": "0101010-abcd-1234-a1b2c3d4e5f6g7h8",
        "id": "123poi-99zz-4qzds099-qsd-azerty",
        "name": "fame",
        "type": "auditbeat",
        "version": "7.13.0",
        "hostname": "fame"
    },
    "auditbeat": {},
    "auditd": {
        "user": {}
    },
    "client": {
        "bytes": 70,
        "domain": "malware1.viralstudio.org",
        "ip": "255.255.255.1",
        "port": 58855,
        "packets": 1,
        "address": "malware1.viralstudio.org",
        "top_level_domain": "org",
        "subdomain": "malware1",
        "registered_domain": "viralstudio.org"
    },
    "destination": {
        "bytes": 123,
        "ip": "8.8.8.8",
        "port": 53,
        "packets": 1,
        "address": "8.8.8.8"
    },
    "group": {
        "id": "0",
        "name": "root"
    },
    "host": {
        "name": "fame"
    },
    "log": {
        "hostname": "fame"
    },
    "network": {
        "transport": "udp",
        "packets": 2,
        "bytes": 210,
        "community_id": "azertyuiopsdfghjklm",
        "direction": "egress",
        "type": "ipv4"
    },
    "process": {
        "pid": 9876543,
        "name": "smtp",
        "args": [
            "smtp",
            "-t",
            "unix",
            "-u",
            "-c"
        ],
        "executable": "/usr/lib/postfix/sbin/smtp",
        "command_line": "smtp -t unix -u -c"
    },
    "related": {
        "hosts": [
            "malware1.viralstudio.org"
        ],
        "ip": [
            "255.255.255.1",
            "8.8.8.8"
        ],
        "user": [
            "root"
        ]
    },
    "server": {
        "bytes": 123,
        "ip": "8.8.8.8",
        "port": 53,
        "packets": 1
    },
    "service": {
        "type": "system"
    },
    "source": {
        "domain": "malware1.viralstudio.org",
        "ip": "255.255.255.1",
        "port": 58855,
        "packets": 1,
        "bytes": 70,
        "address": "malware1.viralstudio.org",
        "top_level_domain": "org",
        "subdomain": "malware1",
        "registered_domain": "viralstudio.org"
    },
    "system": {},
    "@timestamp": "2021-01-01T00:01:01.000Z",
    "user": {
        "id": "0",
        "name": "root"
    }
}

{
    "message": "{\"@timestamp\":\"2021-11-09T16:17:55.149Z\",\"@metadata\":{\"beat\":\"auditbeat\",\"type\":\"_doc\",\"version\":\"7.15.1\"},\"event\":{\"kind\":\"event\",\"type\":[\"start\"],\"module\":\"auditd\",\"category\":[\"process\"],\"action\":\"ran-command\",\"outcome\":\"success\"},\"user\":{\"id\":\"4e8ff660-f139-4248-8b64-ad29495fca9e\",\"name\":\"NElD74Hc4MX8PjLF\",\"audit\":{\"id\":\"4e8ff660-f139-4248-8b64-ad29495fca9e\",\"name\":\"NElD74Hc4MX8PjLF\"}},\"host\":{\"hostname\":\"web-66\",\"architecture\":\"x86_64\",\"os\":{\"type\":\"linux\",\"platform\":\"ubuntu\",\"version\":\"18.04.6 LTS (Bionic Beaver)\",\"family\":\"debian\",\"name\":\"Ubuntu\",\"kernel\":\"4.15.0-161-generic\",\"codename\":\"bionic\"},\"id\":\"7dd912136af040e4a6ea4f683010b824\",\"containerized\":false,\"ip\":[\"173.8.126.146\"],\"name\":\"web-66\",\"mac\":[\"57:4c:ff:5d:1e:41\"]},\"agent\":{\"id\":\"e9872892-b999-4ad5-83da-d6ec9dbc1f81\",\"name\":\"web-66\",\"type\":\"auditbeat\",\"version\":\"7.15.1\",\"hostname\":\"web-66\",\"ephemeral_id\":\"f1ac5b09-4f0c-42cf-b9f7-f854eeae073a\"},\"ecs\":{\"version\":\"1.11.0\"},\"process\":{\"pid\":12416,\"working_directory\":\"/home/NElD74Hc4MX8PjLF/Documents/Projets/Qh1HoDnBg4mYfHhi\"},\"auditd\":{\"data\":{\"terminal\":\"pts/3\",\"cmd\":\"systemctl status auditbeat\"},\"session\":\"2\",\"summary\":{\"actor\":{\"primary\":\"NElD74Hc4MX8PjLF\",\"secondary\":\"NElD74Hc4MX8PjLF\"},\"object\":{\"primary\":\"systemctl status auditbeat\",\"type\":\"process\"}},\"message_type\":\"user_cmd\",\"sequence\":465,\"result\":\"success\"},\"service\":{\"type\":\"auditd\"}}",
    "event": {
        "kind": "event",
        "module": "auditd",
        "category": [
            "process"
        ],
        "type": [
            "start"
        ],
        "action": "ran-command"
    },
    "agent": {
        "id": "e9872892-b999-4ad5-83da-d6ec9dbc1f81",
        "name": "web-66",
        "type": "auditbeat",
        "version": "7.15.1",
        "hostname": "web-66",
        "ephemeral_id": "f1ac5b09-4f0c-42cf-b9f7-f854eeae073a"
    },
    "auditbeat": {},
    "auditd": {
        "data": {
            "terminal": "pts/3",
            "cmd": "systemctl status auditbeat"
        },
        "session": "2",
        "summary": {
            "actor": {
                "primary": "NElD74Hc4MX8PjLF",
                "secondary": "NElD74Hc4MX8PjLF"
            },
            "object": {
                "primary": "systemctl status auditbeat",
                "type": "process"
            }
        },
        "message_type": "user_cmd",
        "sequence": 465,
        "result": "success",
        "user": {}
    },
    "host": {
        "hostname": "web-66",
        "architecture": "x86_64",
        "os": {
            "type": "linux",
            "platform": "ubuntu",
            "version": "18.04.6 LTS (Bionic Beaver)",
            "family": "debian",
            "name": "Ubuntu",
            "kernel": "4.15.0-161-generic",
            "codename": "bionic"
        },
        "id": "7dd912136af040e4a6ea4f683010b824",
        "containerized": false,
        "ip": [
            "173.8.126.146"
        ],
        "name": "web-66",
        "mac": [
            "57:4c:ff:5d:1e:41"
        ]
    },
    "log": {
        "hostname": "web-66"
    },
    "process": {
        "pid": 12416,
        "working_directory": "/home/NElD74Hc4MX8PjLF/Documents/Projets/Qh1HoDnBg4mYfHhi"
    },
    "service": {
        "type": "auditd"
    },
    "@timestamp": "2021-11-09T16:17:55.149Z",
    "user": {
        "id": "4e8ff660-f139-4248-8b64-ad29495fca9e",
        "name": "NElD74Hc4MX8PjLF",
        "audit": {
            "id": "4e8ff660-f139-4248-8b64-ad29495fca9e",
            "name": "NElD74Hc4MX8PjLF"
        }
    },
    "related": {
        "ip": [
            "173.8.126.146"
        ],
        "hosts": [
            "web-66"
        ],
        "user": [
            "NElD74Hc4MX8PjLF"
        ]
    }
}

Extracted Fields

The following table lists the fields that are extracted, normalized under the ECS format, analyzed and indexed by the parser. It should be noted that infered fields are not listed.

Name	Type	Description
`@timestamp`	`date`	Date/time when the event originated.
`agent.hostname`	`keyword`	Deprecated - use agent.name or agent.id to identify an agent. Hostname of the agent.
`cloud.image.id`	`keyword`	Image ID for the cloud instance.
`container.image.name`	`keyword`	Name of the image the container was built on.
`error.message`	`match_only_text`	Error message.
`event.action`	`keyword`	The action captured by the event.
`event.category`	`keyword`	Event category. The second categorization field in the hierarchy.
`event.kind`	`keyword`	The kind of the event. The highest categorization field in the hierarchy.
`event.module`	`keyword`	Name of the module this data is coming from.
`event.type`	`keyword`	Event type. The third categorization field in the hierarchy.
`fields`	`object`	Contains user configurable fields.
`host.name`	`keyword`	Name of the host.
`log.hostname`	`keyword`	Hostname of the computer (temporary fix for detection rules and smart description).
`process.command_line`	`wildcard`	Full command line that started the process.
`process.parent.pid`	`long`	Process id.

Configure

Transport to the collector

Prerequisites

The following prerequisites are needed in order to setup efficient log concentration:

Have administrator privileges on the server
Traffic towards the log collector sever which is using syslog must be open on port TCP/514

Configure the client

Install and configure Auditbeat

To download and install Auditbeat on a Debian based distributions (including Ubuntu, Linux Mint, etc.). Use the commands that work with your system:

curl -L -O https://artifacts.elastic.co/downloads/beats/auditbeat/auditbeat-7.13.1-amd64.deb
sudo dpkg -i auditbeat-7.13.1-amd64.deb

To download and install Auditbeat on Fedora, CentOS or Red Hat Enterprise Linux, use the commands that work with your system:

curl -L -O https://artifacts.elastic.co/downloads/beats/auditbeat/auditbeat-7.13.1-x86_64.rpm
sudo rpm -vi auditbeat-7.13.1-x86_64.rpm

Modify the version number with the newest one.

Auditbeat uses modules to collect audit information. By default, Auditbeat uses a configuration that’s tailored to the operating system where Auditbeat is running.

Replace the configuration file /etc/auditbeat/auditbeat.yml by the following content:

########################## Auditbeat Configuration #############################

# =========================== Modules configuration ============================
auditbeat.modules:

# The auditd module collects events from the audit framework in the Linux
# kernel. You need to specify audit rules for the events that you want to audit.
- module: auditd
  resolve_ids: true
  failure_mode: silent
  backlog_limit: 8196
  rate_limit: 0
  include_raw_message: false
  include_warnings: false

  # Load audit rules
  audit_rules: |
    ## Example of audit rules here. Comment what is NOT needed
    ## Executions.
    -a always,exit -F arch=b64 -S execve,execveat -k exec

    ## External access (warning: these can be expensive to audit).
    -a always,exit -F arch=b64 -S accept,bind,connect -F key=external-access

    ## Identity changes.
    -w /etc/group -p wa -k identity
    -w /etc/passwd -p wa -k identity
    -w /etc/gshadow -p wa -k identity

    ## Unauthorized access attempts.
    -a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EACCES -k access
    -a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EPERM -k access

# The file integrity module sends events when files are changed (created,
# updated, deleted). The events contain file metadata and hashes.
- module: file_integrity
  paths:
  - /bin
  - /usr/bin
  - /sbin
  - /usr/sbin
  - /etc
  - /var/spool/cron/crontabs
  - /etc/cron.d
  - /etc/cron.daily
  - /etc/cron.hourly
  - /etc/cron.monthly
  - /etc/cron.weekly


  scan_at_start: true
  scan_rate_per_sec: 50 MiB
  max_file_size: 100 MiB
  hash_types: [sha1]

  # Detect changes to files included in subdirectories. Disabled by default.
  recursive: false

- module: system
  datasets:
    - package   # Installed, updated, and removed packages
  period: 2m

- module: system
  datasets:
    - host      # General host information, e.g. uptime, IPs
    - login     # User logins, logouts, and system boots.
    - process   # Started and stopped processes
    - socket    # Opened and closed sockets
    - user      # User information


  user.detect_password_changes: true

# ================================== Outputs ===================================
# ---------------------------- Elasticsearch Output ----------------------------
output.elasticsearch:
  enabled: false

# -------------------------------- File Output ---------------------------------
output.file:
  enabled: true

  # Configure JSON encoding
  codec.json:
    #pretty: false
    # Configure escaping HTML symbols in strings.
    #escape_html: false

  # Path to the directory where to save the generated files.
  path: "/tmp/auditbeat"
  filename: auditbeat
  rotate_every_kb: 10000
  number_of_files: 7
  permissions: 0600

# =================================== Paths ====================================

path.home: "/usr/share/auditbeat/bin"
path.config: "/etc/auditbeat"
path.data: "/var/lib/auditbeat"
path.logs: "/var/log/auditbeat"

# ================================== Template ==================================

# Elasticsearch template settings
setup.template.settings:
  # A dictionary of settings to place into the settings.index dictionary
  index:
    number_of_shards: 1
    #codec: best_compression

# ================================== Logging ===================================

logging.level: info

logging.to_files: true
logging.files:
  path: /var/log/auditbeat
  name: auditbeat
  rotateeverybytes: 10485760 # = 10MB
  keepfiles: 7
  permissions: 0600

Don't forget to set the right level of permission of the new auditbeat.yml if you edited a new one. sudo chmod 0600 auditbeat.yml Plus in this case ensure the owner of the file is root: sudo chown root:root auditbeat.yml

Auditbeat comes with predefined assets for parsing, indexing, and visualizing your data. To load these assets:

sudo auditbeat -e

If no error occurs, use Ctrl + C to stop running it in the terminal.

Start Auditbeat with the following command:

sudo systemctl restart auditbeat.service

Check your logs in /tmp/auditbeat/auditbeat in JSON format. It may be recommended to set up logrotate for the Auditbeat logs generated in /tmp/auditbeat.

Configure local Rsyslog service

In order to allow the rsyslog to work properly, please ensure the following packages are installed:

sudo apt install rsyslog

Settup a light client rsyslog by editing the /etc/rsyslog.conf file.

### Create a dedicated Rsyslog configuration file
module(load="imuxsock")                                 # provides support for local system logging
module(load="imklog" permitnonkernelfacility="on")      # provides kernel logging support

# Set the maximum supported message size
$MaxMessageSize 20k

# Use traditional timestamp format.
$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat

# Set the default permissions for all log files.
$FileOwner root
$FileGroup adm
$FileCreateMode 0640
$DirCreateMode 0755
$Umask 0022

$ActionQueueType LinkedList     # create a queue stored in the RAM
$ActionQueueFileName sek_fwd    # set up the prefix for writting
$ActionQueueMaxDiskSpace 5g     # allow 5 giga of storage for the buffer
$ActionQueueSaveOnShutdown on   # write on disk is the rsyslog is whut down
$ActionResumeRetryCount -1      # prevent the rsyslog from droping the logs if the connexion is interrupted

# Where to place spool and state files
$WorkDirectory /var/spool/rsyslog
$IncludeConfig /etc/rsyslog.d/*.conf

# Rules
*.*          -/var/log/syslog

Please ensure, options $PrivDropToUser syslog and $PrivDropToGroup syslog are removed, otherwise rsyslog process could not read auditbeat output.

And add a dedicated configuration file for the Auditbeat logs in /etc/rsyslog.d/8-linux_auditbeat.conf to be sent to a log concentrator.

module(load="imfile" PollingInterval="10")              #needs to be done just once
input(type="imfile"
      File="/tmp/auditbeat/auditbeat"
      Tag="linux_auditbeat"
      Severity="info"
      Facility="local7")

if ($syslogtag contains 'linux_auditbeat') then {
     action(
         type="omfwd"
         protocol="tcp"
         target="YOUR_RSYSLOG_DESTINATION_SERVER"
         port="514"
         TCP_Framing="octet-counted"
     )
}

Don't forget to change the value of YOUR_RSYSLOG_DESTINATION_SERVER in the bottom of the rsyslog.conf file

Restart Rsyslog

sudo systemctl restart rsyslog.service

Transport to SEKOIA.IO

The reader is invited to consult the Rsyslog Transport documentation or Syslog Forwarding documentation to transport logs to SEKOIA.IO.

Enjoy your events

Go to the events page to watch your incoming events.