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Trellix Network Security

Overview

Trellix Network Security is an effective cyberthreat protection solution that helps your organization minimize the risk of costly breaches by accurately detecting and immediately stopping advanced, targeted, and other evasive attacks hiding in internet traffic.

Warning

Important note - This format is currently in beta. We highly value your feedback to improve its performance.

The following Sekoia.io built-in rules match the intake Trellix Network Security [BETA]. This documentation is updated automatically and is based solely on the fields used by the intake which are checked against our rules. This means that some rules will be listed but might not be relevant with the intake.

SEKOIA.IO x Trellix Network Security [BETA] on ATT&CK Navigator

CVE-2018-11776 Apache Struts2

Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.

  • Effort: intermediate
CVE-2019-0604 SharePoint

Detects the exploitation of the SharePoint vulnerability (CVE-2019-0604).

  • Effort: advanced
CVE-2020-0688 Microsoft Exchange Server Exploit

Detects the exploitation of CVE-2020-0688. The POC exploit a .NET serialization vulnerability in the Exchange Control Panel (ECP) web page. The vulnerability is due to Microsoft Exchange Server not randomizing the keys on a per-installation basis resulting in them using the same validationKey and decryptionKey values. With knowledge of these, values an attacker can craft a special viewstate to use an OS command to be executed by NT_AUTHORITY\SYSTEM using .NET deserialization. To exploit this vulnerability, an attacker needs to leverage the credentials of an account it had already compromised to authenticate to OWA.

  • Effort: elementary
CVE-2020-1147 SharePoint

Detection of SharePoint vulnerability CVE-2020-1147.

  • Effort: advanced
CVE-2020-14882 Oracle WebLogic Server

Detects the exploitation of the Oracle WebLogic Server vulnerability (CVE-2020-16952).

  • Effort: advanced
CVE-2020-17530 Apache Struts RCE

Detects the exploitation of the Apache Struts RCE vulnerability (CVE-2020-17530).

  • Effort: intermediate
CVE-2021-20021 SonicWall Unauthenticated Administrator Access

Detects the exploitation of SonicWall Unauthenticated Admin Access.

  • Effort: advanced
CVE-2021-20023 SonicWall Arbitrary File Read

Detects Arbitrary File Read, which can be used with other vulnerabilities as a mean to obtain outputs generated by attackers, or sensitive data.

  • Effort: advanced
CVE-2021-21972 VMware vCenter

The vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2). POST request on the following PATH "/ui/vropspluginui/rest/services/uploadova". If in response body (500) the words it has "uploadFile", that means the vCenter is available to accept files via POST without any restrictions.

  • Effort: intermediate
CVE-2021-21985 VMware vCenter

The VMware vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.0 before 7.0 U2b, 6.7 before 6.7 U3n and 6.5 before 6.5 U3p) and VMware Cloud Foundation (4.x before 4.2.1 and 3.x before 3.10.2.1).

  • Effort: advanced
CVE-2021-22123 Fortinet FortiWeb OS Command Injection

Detects Fortinet FortiWeb OS Command Injection (August 2021) vulnerability exploitation attempt. A remote, authenticated attacker can execute arbitrary commands on the system hosting a vulnerable FortiWeb WAF by sending a POST request with the command in the name field. At the time of writing this rule, it would appear that the request would respond in code 500 for a successful exploitation attempt.

  • Effort: advanced
CVE-2021-22893 Pulse Connect Secure RCE Vulnerability

Detects potential exploitation of the authentication by-pass vulnerability that can allow an unauthenticated user to perform remote arbitrary file execution on the Pulse Connect Secure gateway. It is highly recommended to apply the Pulse Secure mitigations and seach for indicators of compromise on affected servers if you are in doubt over the integrity of your Pulse Connect Secure product.

  • Effort: intermediate
CVE-2021-26855 Exchange SSRF

Detects the exploitation of ProyxLogon vulerability on Exchange servers.

  • Effort: advanced
Cron Files Alteration

Cron Files and Cron Directory alteration used by attacker for persistency or privilege escalation.

  • Effort: advanced
Detect requests to Konni C2 servers

This rule detects requests to Konni C2 servers. These patterns come from an analysis done in 2022, September.

  • Effort: elementary
Download Files From Suspicious TLDs

Detects download of certain file types from hosts in suspicious TLDs

  • Effort: master
FoggyWeb HTTP Default GET/POST Requests

Detects GET or POST request pattern observed within the first FoggyWeb campaign detected by Microsoft.

  • Effort: advanced
Koadic MSHTML Command

Detects Koadic payload using MSHTML module

  • Effort: intermediate
NTDS.dit File In Suspicious Directory

The file NTDS.dit is supposed to be located mainly in C:\Windows\NTDS. The rule checks whether the file is in a legitimate directory or not (through file creation events). This is usually really suspicious and could indicate an attacker trying copy the file to then look for users password hashes.

  • Effort: advanced
Nimbo-C2 User Agent

Nimbo-C2 Uses an unusual User-Agent format in its implants.

  • Effort: intermediate
OneNote Embedded File

Detects creation or uses of OneNote embedded files with unusual extensions.

  • Effort: intermediate
Package Manager Alteration

Package manager (eg: apt, yum) can be altered to install malicious software

  • Effort: advanced
Possible Malicious File Double Extension

Detects request to potential malicious file with double extension

  • Effort: elementary
Potential Bazar Loader User-Agents

Detects potential Bazar loader communications through the user-agent

  • Effort: elementary
Potential Lemon Duck User-Agent

Detects LemonDuck user agent. The format used two sets of alphabetical characters separated by dashes, for example "User-Agent: Lemon-Duck-[A-Z]-[A-Z]".

  • Effort: elementary
Privilege Escalation Awesome Scripts (PEAS)

Detect PEAS privileges escalation scripts and binaries

  • Effort: elementary
ProxyShell Microsoft Exchange Suspicious Paths

Detects suspicious calls to Microsoft Exchange resources, in locations related to webshells observed in campaigns using this vulnerability.

  • Effort: elementary
RTLO Character

Detects RTLO (Right-To-Left character) in file and process names.

  • Effort: elementary
SEKOIA.IO Intelligence Feed

Detect threats based on indicators of compromise (IOCs) collected by SEKOIA's Threat and Detection Research team.

  • Effort: elementary
SSH Authorized Key Alteration

The file authorized_keys is used by SSH server to identify SSH keys that are authorized to connect to the host, alteration of one of those files might indicate a user compromision.

  • Effort: advanced
Suspicious URI Used In A Lazarus Campaign

Detects suspicious requests to a specific URI, usually on an .asp page. The website is often compromised.

  • Effort: intermediate
Trellix Network Security Threat Blocked

Trellix Network Security has detected a malicious traffic and blocked it.

  • Effort: master
Trellix Network Security Threat Notified

Trellix Network Security has detected a malicious traffic and raised an alert.

  • Effort: master
WCE wceaux.dll Creation

Detects wceaux.dll creation while Windows Credentials Editor (WCE) is executed.

  • Effort: intermediate
Webshell Creation

Detects possible webshell file creation. It requires File Creation monitoring, which can be done using Sysmon's Event ID 11. However the recommended SwiftOnSecurity configuration does not fully cover the needs for this rule, it needs to be updated with the proper file names extensions.

  • Effort: master

Event Categories

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

Data Source Description
Web logs Trellix Network Security provide many information like the connected client, the requested resource.

In details, the following table denotes the type of events produced by this integration.

Name Values
Kind ``
Category ``
Type info

Event Samples

Find below few samples of events and how they are normalized by Sekoia.io.

{
    "message": "CEF:0|Trellix|MPS|10.0.0.992057|DM|domain-match|1|src=1.2.3.4 spt=48255 smac=6c:af:1a:fb:fe:a7 dst=5.6.7.8 dpt=53 dmac=00:78:db:db:96:f6 dvchost=cms-nx5600-1.eng.fireeye.com dvc=3.4.5.6 cn1Label=vlan cn1=0 cn2Label=sid cn2=93000001 cn3Label=cncPort cn3=53 cs1Label=sname cs1=DTI:Bot.Mariposa.DNS cs4Label=link cs4=https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=cd467397-8c43-4e03-acaa-398cf2e8c612 cs5Label=cncHost cs5=butterfly.bigmoney.biz proto=udp rt=Sep 05 2023 16:47:48 UTC externalId=20967020 act=notified devicePayloadId=cd467397-8c43-4e03-acaa-398cf2e8c612 start=Sep 05 2023 16:47:48 UTC dvcmac=e3:e9:d0:5e:ba:8e",
    "event": {
        "action": "notified",
        "category": [
            "network"
        ],
        "dataset": "domain-match",
        "severity": 1,
        "start": "2023-09-05T16:47:48Z",
        "type": [
            "info"
        ],
        "url": "https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=cd467397-8c43-4e03-acaa-398cf2e8c612"
    },
    "@timestamp": "2023-09-05T16:47:48Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "mac": "00:78:db:db:96:f6",
        "port": 53
    },
    "network": {
        "transport": "udp"
    },
    "observer": {
        "hostname": "cms-nx5600-1.eng.fireeye.com",
        "ip": [
            "3.4.5.6"
        ],
        "mac": [
            "e3:e9:d0:5e:ba:8e"
        ],
        "product": "MPS",
        "vendor": "Trellix",
        "version": "10.0.0.992057"
    },
    "related": {
        "hosts": [
            "cms-nx5600-1.eng.fireeye.com"
        ],
        "ip": [
            "1.2.3.4",
            "3.4.5.6",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "mac": "6c:af:1a:fb:fe:a7",
        "port": 48255
    },
    "trellix": {
        "nx": {
            "cnc_host": "butterfly.bigmoney.biz",
            "cnc_port": "53",
            "sname": "DTI:Bot.Mariposa.DNS"
        }
    }
}
{
    "message": "CEF:0|Trellix|MPS|10.0.0.992057|IM|infection-match|1|spt=1046 smac=6c:af:1a:fb:fe:a7 dpt=80 dmac=00:78:db:db:96:f6 dvchost=cms-nx5600-1.eng.fireeye.com dvc=3.4.5.6 cn1Label=vlan cn1=0 cn2Label=sid cn2=607378 cn3Label=cncPort cn3=80 cs1Label=sname cs1=Local.Infection cs4Label=link cs4=https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=2cededd4-cb4b-42de-9d7e-8e1ce56a9fe6 cs5Label=cncHost cs5=2011::1:6377:90aa cs6Label=channel cs6=GET /m/web.php HTTP/1.1::~~Host: zebrabel1.co.cc::~~User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b5) Gecko/2008032620 Firefox/3.0b5::~~Accept: text/html,application/xhtml+xml,application/xml;q\\=0.9,*/*;q\\=0.8::~~Accept-Language: en-us,en;q\\=0.5::~~Accept-Encoding: gzip,deflate::~~Accept-Charset: ISO-8859-1,utf-8;q\\=0.7,*;q\\=0.7::~~Keep-Alive: 300::~~Connection: keep-alive::~~Referer: http://zebrabel1.co.cc/m/::~~::~~ proto=tcp rt=Sep 05 2023 16:28:55 UTC externalId=20966332 act=notified c6a3=1c83:125e:807c:d317:d732:d30b:6af0:d34f c6a3Label=Attacker IP c6a2=decc:4ab1:133a:f9ce:18d2:7c83:2142:601e c6a2Label=Victim IP requestMethod=GET requestClientApplication=Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b5) Gecko/2008032620 Firefox/3.0b5 requestContext=http://zebrabel1.co.cc/m/ devicePayloadId=2cededd4-cb4b-42de-9d7e-8e1ce56a9fe6 start=Sep 05 2023 16:28:55 UTC dvcmac=e3:e9:d0:5e:ba:8e",
    "event": {
        "action": "notified",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "infection-match",
        "severity": 1,
        "start": "2023-09-05T16:28:55Z",
        "type": [
            "info"
        ],
        "url": "https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=2cededd4-cb4b-42de-9d7e-8e1ce56a9fe6"
    },
    "@timestamp": "2023-09-05T16:28:55Z",
    "destination": {
        "address": "decc:4ab1:133a:f9ce:18d2:7c83:2142:601e",
        "ip": "decc:4ab1:133a:f9ce:18d2:7c83:2142:601e",
        "mac": "00:78:db:db:96:f6",
        "port": 80
    },
    "http": {
        "request": {
            "method": "GET"
        }
    },
    "network": {
        "transport": "tcp"
    },
    "observer": {
        "hostname": "cms-nx5600-1.eng.fireeye.com",
        "ip": [
            "3.4.5.6"
        ],
        "mac": [
            "e3:e9:d0:5e:ba:8e"
        ],
        "product": "MPS",
        "vendor": "Trellix",
        "version": "10.0.0.992057"
    },
    "related": {
        "hosts": [
            "cms-nx5600-1.eng.fireeye.com"
        ],
        "ip": [
            "1c83:125e:807c:d317:d732:d30b:6af0:d34f",
            "3.4.5.6",
            "decc:4ab1:133a:f9ce:18d2:7c83:2142:601e"
        ]
    },
    "source": {
        "address": "1c83:125e:807c:d317:d732:d30b:6af0:d34f",
        "ip": "1c83:125e:807c:d317:d732:d30b:6af0:d34f",
        "mac": "6c:af:1a:fb:fe:a7",
        "port": 1046
    },
    "trellix": {
        "nx": {
            "cnc_host": "2011::1:6377:90aa",
            "cnc_port": "80",
            "sname": "Local.Infection"
        }
    },
    "user_agent": {
        "device": {
            "name": "Other"
        },
        "name": "Firefox Beta",
        "original": "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b5) Gecko/2008032620 Firefox/3.0b5",
        "os": {
            "name": "Windows",
            "version": "XP"
        },
        "version": "3.0.b5"
    }
}
{
    "message": "CEF:0|Trellix|MPS|10.0.0.992057|IE|ips-event|7|externalId=3463232 rt=Sep 05 2023 16:46:51 UTC proto=tcp src=1.2.3.4 spt=80 smac=6c:af:1a:fb:fe:a7 dst=5.6.7.8 dpt=1109 dmac=00:78:db:db:96:f6 cnt=1 cs1Label=sname cs1=Exploit Kit Landing Page act=notified dvchost=cms-nx5600-1.eng.fireeye.com dvc=3.4.5.6 dvcmac=e3:e9:d0:5e:ba:8e cn2=85305161 cn2Label=sid cfp1=12 cfp1Label=signature revision cs4=https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=6682a2ba-bf3e-4c12-b7a1-822d648132fd cs4Label=link flexString2=client flexString2Label=attack mode msg=MVX Correlation Status:N/A cn1=0 cn1Label=vlan",
    "event": {
        "action": "notified",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "ips-event",
        "reason": "MVX Correlation Status:N/A",
        "severity": 7,
        "type": [
            "info"
        ],
        "url": "https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=6682a2ba-bf3e-4c12-b7a1-822d648132fd"
    },
    "@timestamp": "2023-09-05T16:46:51Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "mac": "00:78:db:db:96:f6",
        "port": 1109
    },
    "network": {
        "transport": "tcp"
    },
    "observer": {
        "hostname": "cms-nx5600-1.eng.fireeye.com",
        "ip": [
            "3.4.5.6"
        ],
        "mac": [
            "e3:e9:d0:5e:ba:8e"
        ],
        "product": "MPS",
        "vendor": "Trellix",
        "version": "10.0.0.992057"
    },
    "related": {
        "hosts": [
            "cms-nx5600-1.eng.fireeye.com"
        ],
        "ip": [
            "1.2.3.4",
            "3.4.5.6",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "mac": "6c:af:1a:fb:fe:a7",
        "port": 80
    },
    "trellix": {
        "nx": {
            "sname": "Exploit Kit Landing Page"
        }
    }
}
{
    "message": "CEF:0|Trellix|MPS|10.0.0.992057|MC|malware-callback|7|src=1.2.3.4 spt=1133 smac=6c:af:1a:fb:fe:a7 dst=5.6.7.8 dpt=443 dmac=00:78:db:db:96:f6 dvchost=cms-nx5600-1.eng.fireeye.com dvc=3.4.5.6 cn1Label=vlan cn1=0 cn2Label=sid cn2=33332506 cn3Label=cncPort cn3=443 cs1Label=sname cs1=Bot.Pushdo.C1 cs4Label=link cs4=https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=8a4875e0-195e-436a-b3a1-e2a52c544d4b cs5Label=cncHost cs5=223.92.214.59 proto=tcp rt=Sep 05 2023 16:28:40 UTC shost=ip-095-223-164-201.um35.pools.vodafone-ip.de externalId=20966324 act=notified devicePayloadId=8a4875e0-195e-436a-b3a1-e2a52c544d4b start=Sep 05 2023 16:28:40 UTC dvcmac=e3:e9:d0:5e:ba:8e",
    "event": {
        "action": "notified",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "malware-callback",
        "severity": 7,
        "start": "2023-09-05T16:28:40Z",
        "type": [
            "info"
        ],
        "url": "https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=8a4875e0-195e-436a-b3a1-e2a52c544d4b"
    },
    "@timestamp": "2023-09-05T16:28:40Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "mac": "00:78:db:db:96:f6",
        "port": 443
    },
    "network": {
        "transport": "tcp"
    },
    "observer": {
        "hostname": "cms-nx5600-1.eng.fireeye.com",
        "ip": [
            "3.4.5.6"
        ],
        "mac": [
            "e3:e9:d0:5e:ba:8e"
        ],
        "product": "MPS",
        "vendor": "Trellix",
        "version": "10.0.0.992057"
    },
    "related": {
        "hosts": [
            "cms-nx5600-1.eng.fireeye.com",
            "ip-095-223-164-201.um35.pools.vodafone-ip.de"
        ],
        "ip": [
            "1.2.3.4",
            "3.4.5.6",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "ip-095-223-164-201.um35.pools.vodafone-ip.de",
        "domain": "ip-095-223-164-201.um35.pools.vodafone-ip.de",
        "ip": "1.2.3.4",
        "mac": "6c:af:1a:fb:fe:a7",
        "port": 1133,
        "registered_domain": "vodafone-ip.de",
        "subdomain": "ip-095-223-164-201.um35.pools",
        "top_level_domain": "de"
    },
    "trellix": {
        "nx": {
            "cnc_host": "223.92.214.59",
            "cnc_port": "443",
            "sname": "Bot.Pushdo.C1"
        }
    }
}
{
    "message": "CEF:0|Trellix|MPS|10.0.0.992057|MO|malware-object|4|src=1.2.3.4 spt=49207 smac=6c:af:1a:fb:fe:a7 dst=5.6.7.8 dpt=80 dmac=00:78:db:db:96:f6 dvchost=cms-nx5600-1.eng.fireeye.com dvc=3.4.5.6 cn1Label=vlan cn1=0 cn2Label=sid cn2=8816733 cs1Label=sname cs1=Exploit.JAVA.CVE-2013-0422.FEC2 cs4Label=link cs4=https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=860e5b30-5a8b-4159-8eb5-148ec3387e87 filePath=kentuckyautoexchange.com/tsh.jar rt=Sep 05 2023 16:28:42 UTC shost=dynamic-ip-adsl.viettel.vn fileHash=517f9835592fe08912c702c70219b20a externalId=8838994 act=notified devicePayloadId=860e5b30-5a8b-4159-8eb5-148ec3387e87 fileType=jar sproc=Java JDK JRE 7.13 fsize=13676 fname=tsh.jar flexString1Label=sha256sum flexString1=6e46b55feaeee973cfebabda18fa004b676a4be0919fd79bbad63f9f6a7a98f2 start=Sep 04 2023 11:26:23 UTC dvcmac=e3:e9:d0:5e:ba:8e",
    "event": {
        "action": "notified",
        "category": [
            "malware"
        ],
        "dataset": "malware-object",
        "severity": 4,
        "start": "2023-09-04T11:26:23Z",
        "type": [
            "info"
        ],
        "url": "https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=860e5b30-5a8b-4159-8eb5-148ec3387e87"
    },
    "@timestamp": "2023-09-04T11:26:23Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "mac": "00:78:db:db:96:f6",
        "port": 80
    },
    "file": {
        "extension": "jar",
        "hash": {
            "md5": "517f9835592fe08912c702c70219b20a",
            "sha256": "6e46b55feaeee973cfebabda18fa004b676a4be0919fd79bbad63f9f6a7a98f2"
        },
        "name": "tsh.jar",
        "path": "kentuckyautoexchange.com/tsh.jar",
        "size": 13676
    },
    "observer": {
        "hostname": "cms-nx5600-1.eng.fireeye.com",
        "ip": [
            "3.4.5.6"
        ],
        "mac": [
            "e3:e9:d0:5e:ba:8e"
        ],
        "product": "MPS",
        "vendor": "Trellix",
        "version": "10.0.0.992057"
    },
    "process": {
        "parent": {
            "title": "Java JDK JRE 7.13"
        }
    },
    "related": {
        "hash": [
            "517f9835592fe08912c702c70219b20a",
            "6e46b55feaeee973cfebabda18fa004b676a4be0919fd79bbad63f9f6a7a98f2"
        ],
        "hosts": [
            "cms-nx5600-1.eng.fireeye.com",
            "dynamic-ip-adsl.viettel.vn"
        ],
        "ip": [
            "1.2.3.4",
            "3.4.5.6",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "dynamic-ip-adsl.viettel.vn",
        "domain": "dynamic-ip-adsl.viettel.vn",
        "ip": "1.2.3.4",
        "mac": "6c:af:1a:fb:fe:a7",
        "port": 49207,
        "registered_domain": "viettel.vn",
        "subdomain": "dynamic-ip-adsl",
        "top_level_domain": "vn"
    },
    "trellix": {
        "nx": {
            "sname": "Exploit.JAVA.CVE-2013-0422.FEC2"
        }
    }
}
{
    "message": "CEF:0|Trellix|MPS|10.0.0.992057|RC|riskware-callback|1|rt=Sep 05 2023 16:46:47 UTC start=Sep 05 2023 16:46:47 UTC end=Sep 05 2023 16:46:47 UTC src=1.2.3.4 dst=5.6.7.8 request=hxxp://stan.mxp2142.com/abf858fda549bc190bd08eb75a07247bd98d194f57886d31b78b12ee01934bf147e3a36d2778243d1945d8a473515b6d196b33304340dfd578c64e47c8be025d7475f1090b8d3d34 cs1Label=sname cs1=Adware.Downloader.Generic act=notified dvc=3.4.5.6 dvchost=cms-nx5600-1.eng.fireeye.com dvcmac=e3:e9:d0:5e:ba:8e smac=6c:af:1a:fb:fe:a7 dmac=00:78:db:db:96:f6 spt=1072 dpt=80 cn1Label=vlan cn1=0 externalId=20966952 devicePayloadId=ae490699-29f0-4680-abb1-9db7ff757cad msg=risk ware detected:13436744 proto=tcp cs4Label=link cs4=https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=ae490699-29f0-4680-abb1-9db7ff757cad cs6Label=channel cs6=GET /abf858fda549bc190bd08eb75a07247bd98d194f57886d31b78b12ee01934bf147e3a36d2778243d1945d8a473515b6d196b33304340dfd578c64e47c8be025d7475f1090b8d3d34 HTTP/1.1::~~Accept: */*::~~Proxy-Authorization: Basic ::~~User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36::~~Host: stan.mxp2142.com::~~Connection: Keep-Alive::~~::~~",
    "event": {
        "action": "notified",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "riskware-callback",
        "end": "2023-09-05T16:46:47Z",
        "reason": "risk ware detected:13436744",
        "severity": 1,
        "start": "2023-09-05T16:46:47Z",
        "type": [
            "info"
        ],
        "url": "https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=ae490699-29f0-4680-abb1-9db7ff757cad"
    },
    "@timestamp": "2023-09-05T16:46:47Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "mac": "00:78:db:db:96:f6",
        "port": 80
    },
    "network": {
        "transport": "tcp"
    },
    "observer": {
        "hostname": "cms-nx5600-1.eng.fireeye.com",
        "ip": [
            "3.4.5.6"
        ],
        "mac": [
            "e3:e9:d0:5e:ba:8e"
        ],
        "product": "MPS",
        "vendor": "Trellix",
        "version": "10.0.0.992057"
    },
    "related": {
        "hosts": [
            "cms-nx5600-1.eng.fireeye.com"
        ],
        "ip": [
            "1.2.3.4",
            "3.4.5.6",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "mac": "6c:af:1a:fb:fe:a7",
        "port": 1072
    },
    "trellix": {
        "nx": {
            "sname": "Adware.Downloader.Generic"
        }
    },
    "url": {
        "domain": "stan.mxp2142.com",
        "original": "hxxp://stan.mxp2142.com/abf858fda549bc190bd08eb75a07247bd98d194f57886d31b78b12ee01934bf147e3a36d2778243d1945d8a473515b6d196b33304340dfd578c64e47c8be025d7475f1090b8d3d34",
        "path": "/abf858fda549bc190bd08eb75a07247bd98d194f57886d31b78b12ee01934bf147e3a36d2778243d1945d8a473515b6d196b33304340dfd578c64e47c8be025d7475f1090b8d3d34",
        "registered_domain": "mxp2142.com",
        "scheme": "hxxp",
        "subdomain": "stan",
        "top_level_domain": "com"
    }
}
{
    "message": "CEF:0|Trellix|MPS|10.0.0.992057|RO|riskware-object|1|rt=Sep 05 2023 16:45:08 UTC start=Sep 04 2023 11:27:16 UTC end=Sep 05 2023 16:45:08 UTC src=1.2.3.4 dst=5.6.7.8 request=16.16.16.11/043d611854b9c141a36798ac813ff9f7 fname=043d611854b9c141a36798ac813ff9f7 fileType=dmg cs1Label=sname cs1=PUP.MacOS.Bnodlero.FEC3 act=notified dvc=3.4.5.6 dvchost=cms-nx5600-1.eng.fireeye.com dvcmac=e3:e9:d0:5e:ba:8e fileHash=043d611854b9c141a36798ac813ff9f7 smac=6c:af:1a:fb:fe:a7 dmac=00:78:db:db:96:f6 fsize=1315301 spt=37640 dpt=80 cn1Label=vlan cn1=0 requestMethod=GET externalId=8839150 devicePayloadId=c61444e1-64a5-41b3-b31d-3aa4408af602 msg=risk ware detected:13436641 cs4Label=link cs4=https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=c61444e1-64a5-41b3-b31d-3aa4408af602 flexString1Label=sha256sum flexString1=b1e7df9bcb9f2d4183b085450f1f9c5e9d87e919a92f628c04106e5210950e6c",
    "event": {
        "action": "notified",
        "category": [
            "malware"
        ],
        "dataset": "riskware-object",
        "end": "2023-09-05T16:45:08Z",
        "reason": "risk ware detected:13436641",
        "severity": 1,
        "start": "2023-09-04T11:27:16Z",
        "type": [
            "info"
        ],
        "url": "https://cms-nx5600-1.eng.fireeye.com/detection/objects?uuid\\=c61444e1-64a5-41b3-b31d-3aa4408af602"
    },
    "@timestamp": "2023-09-04T11:27:16Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "mac": "00:78:db:db:96:f6",
        "port": 80
    },
    "file": {
        "extension": "dmg",
        "hash": {
            "md5": "043d611854b9c141a36798ac813ff9f7",
            "sha256": "b1e7df9bcb9f2d4183b085450f1f9c5e9d87e919a92f628c04106e5210950e6c"
        },
        "name": "043d611854b9c141a36798ac813ff9f7",
        "size": 1315301
    },
    "http": {
        "request": {
            "method": "GET"
        }
    },
    "observer": {
        "hostname": "cms-nx5600-1.eng.fireeye.com",
        "ip": [
            "3.4.5.6"
        ],
        "mac": [
            "e3:e9:d0:5e:ba:8e"
        ],
        "product": "MPS",
        "vendor": "Trellix",
        "version": "10.0.0.992057"
    },
    "related": {
        "hash": [
            "043d611854b9c141a36798ac813ff9f7",
            "b1e7df9bcb9f2d4183b085450f1f9c5e9d87e919a92f628c04106e5210950e6c"
        ],
        "hosts": [
            "cms-nx5600-1.eng.fireeye.com"
        ],
        "ip": [
            "1.2.3.4",
            "3.4.5.6",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "mac": "6c:af:1a:fb:fe:a7",
        "port": 37640
    },
    "trellix": {
        "nx": {
            "sname": "PUP.MacOS.Bnodlero.FEC3"
        }
    },
    "url": {
        "original": "16.16.16.11/043d611854b9c141a36798ac813ff9f7",
        "path": "16.16.16.11/043d611854b9c141a36798ac813ff9f7"
    }
}

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.
destination.ip ip IP address of the destination.
destination.mac keyword MAC address of the destination.
destination.port long Port of the destination.
event.action keyword The action captured by the event.
event.dataset keyword Name of the dataset.
event.end date event.end contains the date when the event ended or when the activity was last observed.
event.reason keyword Reason why this event happened, according to the source
event.severity long Numeric severity of the event.
event.start date event.start contains the date when the event started or when the activity was first observed.
event.type keyword Event type. The third categorization field in the hierarchy.
event.url keyword Event investigation URL
file.extension keyword File extension, excluding the leading dot.
file.hash.md5 keyword MD5 hash.
file.hash.sha256 keyword SHA256 hash.
file.name keyword Name of the file including the extension, without the directory.
file.path keyword Full path to the file, including the file name.
file.size long File size in bytes.
http.request.method keyword HTTP request method.
network.transport keyword Protocol Name corresponding to the field iana_number.
observer.hostname keyword Hostname of the observer.
observer.ip ip IP addresses of the observer.
observer.mac keyword MAC addresses of the observer.
observer.product keyword The product name of the observer.
observer.vendor keyword Vendor name of the observer.
observer.version keyword Observer version.
process.parent.title keyword Process title.
source.domain keyword The domain name of the source.
source.ip ip IP address of the source.
source.mac keyword MAC address of the source.
source.port long Port of the source.
trellix.nx.cnc_host keyword Trellinx network security event cnc host.
trellix.nx.cnc_port keyword Trellinx network security event cnc port.
trellix.nx.sname keyword Trellinx network security event sname.
url.original wildcard Unmodified original url as seen in the event source.
user_agent.original keyword Unparsed user_agent string.

Configure

This setup guide will show you how to forward your Trellix Network Security logs to Sekoia.io by means of a syslog transport channel.

Prerequisites

You should have:

  • Have an admin access in Trellix platform.
  • Have an internal log concentrator (Rsyslog)

Enable Syslog forwarding for Trellix Network Security

  1. Log onto the Trellix NX console
  2. Go to Settings > Notifications
  3. Click on rsyslog and check the Event type check box below
  4. In the Settings panel, select the Default format as CEF
  5. In the Rsyslog Server Listing, type a name for the new entry then click on the button Add Rsyslog Server
  6. For the new server, check the Enabled checkbox, type the ip address of your syslog concentrator
  7. Click on the Update button to validate the configuration
  8. (Optional) Click on the Test-fire button if you want to test the forwarding of the logs

Create the intake

Go to the intake page and create a new intake from the format Trellix Network Security.

Configure the Rsyslog server

Please consult the Rsyslog Transport documentation to forward these logs to Sekoia.io.