McAfee Web Gateway / Skyhigh Secure Web Gateway
Overview
Skyhigh Secure Web Gateway (SWG) (previously McAfee Web Gateway (MWG)) is a web gateway offering malware detection, threat prevention and reputation filtering.
- Vendor: Skyhigh Security
- Supported environment: On prem
- Version compatibility: 12.2.10
- Detection based on: Telemetry
- Supported application or feature: Anti-virus, Web proxy, Web logs
Configure
In this guide, you will configure a rule set to forward events to syslog and add a new forwarding in the rsyslog server provided with MWG.
Prerequisites
An internal syslog concentrator is required to collect and forward events to Sekoia.io.
Configure a Rule Set
Prior to the configuration, download the “Rule Set” configuration SEKOIAIO_SKYHIGH_swg.xml.
In your SWG console:
- Select
Policysection then theRule setstab. From the menu, selectLog Handler. - Right-click on the
DefaultLog Handler in the tree then selectAdd > Rule Set from Library.... - Once the
Add from Rule Set librarywindow opened, under theRule Set Librarytree, click on theImport from file...button and importSEKOIAIO_mwg.xmlfile. - Select the
Rule SetSekoia.ioand ensure the ruleforward logsis enabled.
Configure Rsyslog
To forward your logs to your log concentrator, in our MWG console:
- Select
Configurationsection then theFile Editortab. - In the tree, select
rsyslog.conf. - Add the following line:
Replace the
if $programname == 'mwg' and $syslogfacility-text == 'daemon' and $syslogseverity-text == 'info' then @@<log concentrator ip>:<port><log concentrator ip>placeholder with the ip address of our log concentrator and<port>by the listening port on the Syslog Forwarding for the Skyhigh raw events.
Note
The double at characters without spaces (@@) indicates that syslog messages are transferred to a host using the TCP protocol. To use the UDP protocol, use single at character (@).
Forward logs to Sekoia.io
Please consult the Syslog Forwarding documentation to forward these logs to Sekoia.io.
Raw Events Samples
In this section, you will find examples of raw logs as generated natively by the source. These examples are provided to help integrators understand the data format before ingestion into Sekoia.io. It is crucial for setting up the correct parsing stages and ensuring that all relevant information is captured.
date="2022-03-11T10:39:16.390Z" hostname="mwgproxy" username="" source_ip=1.2.3.4 destination_ip=2.2.2.41 destination_host="www.forbiddensite.com" http_status_code=403 media_type="" source_bytes=131 destination_bytes=0 http_request_first_line="GET http://www.forbiddensite.com/ HTTP/1.1" url_categories="Pornography" url_reputation_string="Minimal Risk" url_reputation_code=-28 ruleset_name="Default" rule_name="Block URLs Whose Category Is in Category Blocklist for Default Groups" block_id=10 block_reason="Blocked by URL filtering" body_infected=false virus_names="" body_modified=false application_reputation="Unverified" application_name="forbiddenapp" http_referer="" user_agent="curl/7.77.0"
date="2022-03-17T13:14:39.134Z" hostname="mwgproxy" username="" source_ip=1.2.3.4 destination_ip=2.2.2.2 destination_host="slscr.update.microsoft.com" http_status_code=407 media_type="" source_bytes=173 destination_bytes=0 http_request_first_line="CONNECT slscr.update.microsoft.com:443 HTTP/1.1" url_categories="Business, Software/Hardware" url_reputation_string="Minimal Risk" url_reputation_code=-42 ruleset_name="Authentication: Direct Proxy" rule_name="Authenticate: Active Directory" block_id=81 block_reason="Authentication Required" body_infected=false virus_names="" body_modified=false application_reputation="Unverified" application_name="" http_referer="" user_agent=""
date="2022-03-24T13:54:02.740Z" hostname="mwgproxy" username="myusername" source_ip=1.2.3.4 destination_ip=255.255.255.255 destination_host="" http_status_code=400 media_type="" source_bytes=316 destination_bytes=0 http_request_first_line="CONNECT :80 HTTP/1.1" url_categories="Business, Software/Hardware" url_reputation_string="Minimal Risk" url_reputation_code=-3 ruleset_name="Exception DFS" rule_name="Forbidden Access" block_id=10 block_reason="Blocked by URL filtering" body_infected=false virus_names="" body_modified=false application_reputation="Unverified" application_name="" http_referer="" user_agent=""
date="2022-03-11T09:50:47.399Z" hostname="mwgproxy" username="myusername" source_ip=1.2.3.4 destination_ip=142.250.178.131 destination_host="www.google.fr" http_status_code=200 media_type="" source_bytes=127 destination_bytes=14678 http_request_first_line="GET http://www.google.fr/ HTTP/1.1" url_categories="Search Engines" url_reputation_string="Minimal Risk" url_reputation_code=0 ruleset_name="Dynamic Content Classification" rule_name="Block URLs Whose Category Is in Category Blocklist" block_id=0 block_reason="" body_infected=false virus_names="" body_modified=false application_reputation="Unverified" application_name="" http_referer="" user_agent="curl/7.77.0"
user_id=-1 username=foo source_ip=37.171.139.5 http_action=CERTVERIFY server_to_client_bytes=0 client_to_server_bytes=0 requested_host=ping-edge.smartscreen.microsoft.com requested_path=/ result=OBSERVED virus= request_timestamp_epoch=1661260270 request_timestamp=2022-08-23 13:11:10 uri_scheme=https category=Business, Software/Hardware media_type=application/x-empty application_type= reputation=Minimal Risk last_rule=Allow http_status_code=200 client_ip=10.0.2.15 location= block_reason= user_agent_product=Other user_agent_version= user_agent_comment= process_name=msedge.exe destination_ip=20.108.130.238 destination_port=443 pop_country_code=FR referer= ssl_scanned=t av_scanned_up=t av_scanned_down=f rbi=f dlp=f client_system_name=desktop-rles2a6 filename= pop_egress_ip=161.69.108.44 pop_ingress_ip=10.42.47.222 proxy_port=8080
user_id=-1 username=user source_ip=1.2.3.4 http_action=PUT server_to_client_bytes=7976 client_to_server_bytes=860 requested_host=wetransfer.com requested_path=/api/v4/transfers/azerty123/finalize result=OBSERVED virus= request_timestamp_epoch=1699464228 request_timestamp=2023-11-08 17:23:48 uri_scheme=https category=Personal Network Storage media_type=text/plain application_type=WeTransfer Channel reputation=Minimal Risk last_rule=Block URLs Whose Category Is in Category Blocklist http_status_code=200 client_ip=4.3.2.1 location= block_reason= user_agent_product=Chrome user_agent_version=119.0.0.0 user_agent_comment=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36 process_name=chrome.exe destination_ip=5.6.7.8 destination_port=443 pop_country_code=FR referer=https://wetransfer.com/ ssl_scanned=t av_scanned_up=t av_scanned_down=t rbi=f dlp=f client_system_name=por-005003 filename=finalize pop_egress_ip=4.5.6.7 pop_ingress_ip=4.5.6.7 proxy_port=8080
id=-1 username=autorite nt\\service rÉseau source_ip=1.1.1.1 http_action=GET server_to_client_bytes=3160 client_to_server_bytes=1137 requested_host=ctldl.windowsupdate.com requested_path=/msdownload/update/v3/static/trustedr/en/pinrulesstl.cab result=DENIED virus= request_timestamp_epoch=1661266553 request_timestamp=2022-08-23 14:55:53 uri_scheme=http category=Software/Hardware media_type= application_type= reputation=Minimal Risk last_rule=Block if MCP Authentication Failed http_status_code=403 client_ip=1.1.1.1 location= block_reason=Authentication Required user_agent_product=Other user_agent_version= user_agent_comment= process_name=svchost.exe destination_ip=1.1.1.1 destination_port=80 pop_country_code=fr referer= ssl_scanned=f av_scanned_up=f av_scanned_down=f rbi=f dlp=f client_system_name= filename=pinrulesstl.cab pop_egress_ip=1.1.1.1pop_ingress_ip=1.1.1.1 proxy_port=80
Detection section
The following section provides information for those who wish to learn more about the detection capabilities enabled by collecting this intake. It includes details about the built-in rule catalog, event categories, and ECS fields extracted from raw events. This is essential for users aiming to create custom detection rules, perform hunting activities, or pivot in the events page.
Related Built-in Rules
The following Sekoia.io built-in rules match the intake Skyhigh Secure Web Gateway / McAfee Web Gateway. 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 Skyhigh Secure Web Gateway / McAfee Web Gateway on ATT&CK Navigator
Account Added To A Security Enabled Group
Detection in order to investigate who has added a specific Domain User in Domain Admins or Group Policy Creator Owners (Security event 4728)
- Effort: master
Account Removed From A Security Enabled Group
Detection in order to investigate who has removed a specific Domain User in Domain Admins or Group Policy Creator Owners (Security event 4729)
- Effort: master
Active Directory Data Export Using Csvde
Detects the use of Csvde, a command-line tool from Windows Server that can be used to export Active Directory data to CSV files. This export doesn't include password hashes, but can be used as a discovery tool to enumerate users, machines and group memberships.
- Effort: elementary
AdFind Usage
Detects the usage of the AdFind tool. AdFind.exe is a free tool that extracts information from Active Directory. Wizard Spider (Bazar, TrickBot, Ryuk), FIN6 and MAZE operators have used AdFind.exe to collect information about Active Directory organizational units and trust objects
- Effort: elementary
Adexplorer Usage
Detects the usage of Adexplorer, a legitimate tool from the Sysinternals suite that could be abused by attackers as it can saves snapshots of the Active Directory Database.
- Effort: advanced
Advanced IP Scanner
Detects the use of Advanced IP Scanner. Seems to be a popular tool for ransomware groups.
- Effort: master
Bazar Loader DGA (Domain Generation Algorithm)
Detects Bazar Loader domains based on the Bazar Loader DGA
- Effort: elementary
Bloodhound and Sharphound Tools Usage
Detects default process names and default command line parameters used by Bloodhound and Sharphound tools.
- Effort: intermediate
Burp Suite Tool Detected
Burp Suite is a cybersecurity tool. When used as a proxy service, its purpose is to intercept packets and modify them to send them to the server. Burp Collaborator is a network service that Burp Suite uses to help discover many kinds of vulnerabilities (vulnerabilities scanner).
- Effort: intermediate
CVE-2017-11882 Microsoft Office Equation Editor Vulnerability
Detects the exploitation of CVE-2017-11882 vulnerability. The Microsoft Office Equation Editor has no reason to do a network request or drop an executable file. This requires a sysmon configuration with file and network events.
- Effort: master
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-2018-13379 Fortinet Exploit
Detects the successful exploitation of the Fortinet FortiOS CVE-2018-13379. This CVE is one of the most exploited CVEs since 2018. It is exploited by APT threat actors as well as cybercriminals. The exploitation of this CVE lead an unauthenticated user to get full access to FortiOS system file through SSL VPN via specially crafted HTTP resource requests. The exploit read /dev/cmdb/sslvpn_websession file, that contains login and passwords in (clear/text). An HTTP response status code = 200, means the file was successfully accessed. This vulnerability affects FortiOS 5.6.3 to 5.6.7 and FortiOS 6.0.0 to 6.0.4.
- Effort: advanced
CVE-2019-0604 SharePoint
Detects the exploitation of the SharePoint vulnerability (CVE-2019-0604).
- Effort: advanced
CVE-2019-11510 Pulse Secure Exploit
Detects the successful exploitation of the Pulse Secure vulnerability CVE-2019-11510. This CVE is one of the most exploited CVEs since 2019. It is exploited by diverse threat actors, leading sometimes in ransomware deployement among these groups: Maze, Conti, Egregor, DoppelPaymer, NetWalker and REvil. But also APT actors such as APT29. The exploitation of this CVE allows a remote, unauthenticated attacker to compromise a vulnerable VPN server. The attacker may be able to gain access to all active users and their plain-text credentials. It may also be possible for the attacker to execute arbitrary commands on each VPN client as it successfully connects to the VPN server. The exploit reads /etc/passwd file to get access to login and passwords in (clear/text). An HTTP response status code = 200, means the file was successfully accessed. This vulnerability affects 8.1R15.1, 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and 9.0 before 9.0R3.4 products.
- Effort: elementary
CVE-2019-19781 Citrix NetScaler (ADC)
Detects CVE-2019-19781 exploitation attempt against Citrix NetScaler (ADC), Application Delivery Controller and Citrix Gateway Attack.
- Effort: elementary
CVE-2019-2725 Oracle Weblogic Exploit
Detects the successful exploitation of a deserialization vulnerability in Oracle Weblogic Server, CVE-2019-2725. This vulnerability affects versions 10.X and 12.1.3 of WebLogic that have the components wls9_async_response.war and wls-wsat.war enabled. It is a remote code execution which can be exploited without authentication via HTTP. An HTTP response status code = 202, means the target is vulnerable, the analyst then has to look in depth to check if a webshell has been uploaded or something else has been done.
- Effort: elementary
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-2020-5902 F5 BIG-IP Exploitation Attempts
Detects the exploitation attempt of the vulnerability found in F5 BIG-IP and described in CVE-2020-5902.
- Effort: elementary
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
CVE-2021-34473 ProxyShell Attempt
Detects CVE-2021-34473 ProxyShell attempt against Microsoft Exchange Server, Remote Code Execution Vulnerability.
- Effort: advanced
CVE-2021-41773 Apache 2.4.49 Path Traversal
Detects successful exploitation of the Apache Path Traversal CVE-2021-41773.
- Effort: advanced
CVE-2021-43798 Grafana Directory Traversal
Grafana version 8.x has a 0day arbitrary file read (with no fix yet) based on a directory traversal vulnerability
- Effort: intermediate
Certificate Authority Modification
Installation of new certificate(s) in the Certificate Authority can be used to trick user when spoofing website or to add trusted destinations.
- Effort: master
Certify Or Certipy
Detects the use of certify and certipy which are two different tools used to enumerate and abuse Active Directory Certificate Services.
- Effort: advanced
Cobalt Strike Default Beacons Names
Detects the default names of Cobalt Strike beacons / payloads.
- Effort: intermediate
Cobalt Strike HTTP Default GET beaconing
Detects GET HTTP queries from known Cobalt Strike beacons (source code 4.3)
- Effort: advanced
Cobalt Strike HTTP Default POST Beaconing
Detects POST HTTP queries from known Cobalt Strike beacons (source code 4.3)
- Effort: advanced
Computer Account Deleted
Detects computer account deletion.
- Effort: master
Correlation Potential DNS Tunnel
Detects domain name which is longer than 95 characters. Long domain names are distinctive of DNS tunnels.
- Effort: advanced
Covenant Default HTTP Beaconing
Detects potential Covenant communications through the user-agent and specific urls
- Effort: intermediate
Credential Dump Tools Related Files
Detects processes or file names related to credential dumping tools and the dropped files they generate by default.
- Effort: advanced
Cryptomining
Detection of domain names potentially related to cryptomining activities.
- Effort: master
DNS Query For Iplookup
Detects dns query of observables tagged as iplookup.
- Effort: master
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
Discord Suspicious Download
Discord is a messaging application. It allows users to create their own communities to share messages and attachments. Those attachments have little to no overview and can be downloaded by almost anyone, which has been abused by attackers to host malicious payloads.
- Effort: intermediate
Discovery Commands Correlation
Detects some frequent discovery commands used by some ransomware operators.
- Effort: intermediate
Domain Trust Created Or Removed
A trust was created or removed to a domain. An attacker could perform that in order to do lateral movement easily between domains or shutdown the ability of two domains to communicate.
- Effort: advanced
Download Files From Non-Legitimate TLDs
Detects file downloads from non-legitimate TLDs. Additional legitimates TLDs should be filtered according to the business habits.
- Effort: master
Download Files From Suspicious TLDs
Detects download of certain file types from hosts in suspicious TLDs
- Effort: master
Dynamic DNS Contacted
Detect communication with dynamic dns domain. This kind of domain is often used by attackers. This rule can trigger false positive in non-controlled environment because dynamic dns is not always malicious.
- Effort: master
EvilProxy Phishing Domain
Detects subdomains potentially generated by the EvilProxy adversary-in-the-middle phishing platform. Inspect the other subdomains of the domain to identify the landing page, and determine if the user submitted credentials. This rule has a small percentage of false positives on legitimate domains.
- Effort: intermediate
Exfiltration And Tunneling Tools Execution
Execution of well known tools for data exfiltration and tunneling
- Effort: advanced
Exfiltration Domain
Detects traffic toward a domain flagged as a possible exfiltration vector.
- 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
GitLab CVE-2021-22205
Detects GitLab vulnerability CVE-2021-22205 exploitation success. It allows an attacker to do some remote code execution with user git. The HTTP return code 422 indicates a successfull exploitation.
- Effort: intermediate
HTA Infection Chains
Detect the creation of a ZIP file and an HTA file as it is often used in infection chains. Furthermore it also detects the use of suspicious processes launched by explorer.exe combined with the creation of an HTA file, since it is also often used in infection chains (LNK - HTA for instance).
- Effort: intermediate
HTML Smuggling Suspicious Usage
Based on several samples from different botnets, this rule aims at detecting HTML infection chain by looking for HTML created files followed by suspicious files being executed.
- Effort: intermediate
HackTools Suspicious Names
Quick-win rule to detect the default process names or file names of several HackTools.
- Effort: elementary
ISO LNK Infection Chain
Detection of an ISO (or any other similar archive file) downloaded file, followed by a child-process of explorer, which is characteristic of an infection using an ISO containing an LNK file. For events with host.name.
- Effort: intermediate
Kernel Module Alteration
Kernel module installation can be used to configure system settings to automatically execute a program during system boot or logon to maintain persistence or gain higher-level privileges on compromised systems. The prerequisites are to enable monitoring of the finit_module, init_module, delete_module syscalls using Auditbeat.
- Effort: advanced
Koadic MSHTML Command
Detects Koadic payload using MSHTML module
- Effort: intermediate
LokiBot Default C2 URL
Detects default C2 URL for trojan LokiBot
- Effort: elementary
MSBuild Abuse
Detection of MSBuild uses by attackers to infect an host. Focuses on XML compilation which is a Metasploit payload, and on connections made by this process which is unusual.
- Effort: intermediate
Microsoft Exchange Server Creating Unusual Files
Look for Microsoft Exchange Server’s Unified Messaging service creating non-standard content on disk, which could indicate web shells or other malicious content, suggesting exploitation of CVE-2021-26858 vulnerability
- Effort: intermediate
Network Connection Via Certutil
Identifies certutil.exe making a network connection. Adversaries could abuse certutil.exe to download a certificate, or malware, from a remote URL. The rule excludes private IP addresses and IPV6. This requires Sysmon logging.
- Effort: intermediate
Network Scanning and Discovery
Tools and command lines used for network discovery from current system
- Effort: advanced
Network Sniffing
List of common tools used for network packages sniffing
- Effort: advanced
Network Sniffing Windows
Network sniffing refers to using the network interface on a system to monitor or capture information sent over a wired or wireless connection. An adversary may place a network interface into promiscuous mode to passively access data in transit over the network, or use span ports to capture a larger amount of data.
- Effort: intermediate
Nimbo-C2 User Agent
Nimbo-C2 Uses an unusual User-Agent format in its implants.
- 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: advanced
Password Change On Directory Service Restore Mode (DSRM) Account
The Directory Service Restore Mode (DSRM) account is a local administrator account on Domain Controllers. Attackers may change the password to gain persistence.
- Effort: intermediate
PasswordDump SecurityXploded Tool
Detects the execution of the PasswordDump SecurityXploded Tool
- Effort: elementary
Possible Malicious File Double Extension
Detects request to potential malicious file with double extension
- Effort: elementary
Possible Replay Attack
This event can be a sign of Kerberos replay attack or, among other things, network device configuration or routing problems.
- Effort: intermediate
Potential Azure AD Phishing Page (Adversary-in-the-Middle)
Detects an HTTP request to an URL typical of the Azure AD authentication flow, but towards a domain that is not one the legitimate Microsoft domains used for Azure AD authentication.
- Effort: intermediate
Potential Bazar Loader User-Agents
Detects potential Bazar loader communications through the user-agent
- Effort: elementary
Potential DNS Tunnel
Detects domain name which is longer than 95 characters. Long domain names are distinctive of DNS tunnels.
- Effort: advanced
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
Potential LokiBot User-Agent
Detects potential LokiBot communications through the user-agent
- Effort: intermediate
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
PsExec Process
Detects PsExec execution, command line which contains pstools or installation of the PsExec service. PsExec is a SysInternals which can be used to execute a program on another computer. The tool is as much used by attackers as by administrators.
- Effort: advanced
RDP Session Discovery
Detects use of RDP session discovery via qwinsta or quser. Used by some threat actors to know if someone is working via RDP on a server.
- Effort: advanced
RSA SecurID Failed Authentification
Detects many failed attempts to authenticate followed by a successfull login for a super admin account.
- Effort: advanced
RTLO Character
Detects RTLO (Right-To-Left character) in file and process names.
- Effort: elementary
Raccoon Stealer 2.0 Legitimate Third-Party DLL Download URL
Detects Raccoon Stealer 2.0 malware downloading legitimate third-party DLLs from its C2 server. These legitimate DLLs are used by the information stealer to collect data on the compromised hosts.
- Effort: elementary
Remote Access Tool Domain
Detects traffic toward a domain flagged as a Remote Administration Tool (RAT).
- Effort: master
Remote Monitoring and Management Software - AnyDesk
Detect artifacts related to the installation or execution of the Remote Monitoring and Management tool AnyDesk.
- Effort: master
Remote Monitoring and Management Software - Atera
Detect artifacts related to the installation or execution of the Remote Monitoring and Management tool Atera.
- Effort: master
SEKOIA.IO Intelligence Feed
Detect threats based on indicators of compromise (IOCs) collected by SEKOIA's Threat and Detection Research team.
- Effort: elementary
Sekoia.io EICAR Detection
Detects observables in Sekoia.io CTI tagged as EICAR, which are fake samples meant to test detection.
- Effort: master
SharePoint Authenticated SSRF
Detects succesful SSRF from an authenticated SharePoint user.
- Effort: elementary
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: advanced
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
SolarWinds Suspicious File Creation
Detects SolarWinds process creating a file with a suspicious extension. The process solarwinds.businesslayerhost.exe created an unexpected file whose extension is ".exe", ".ps1", ".jpg", ".png" or ".dll".
- Effort: intermediate
Suspicious Double Extension
Detects suspicious use of an .exe extension after a non-executable file extension like .pdf.exe, a set of spaces or underlines to cloak the executable file in spearphishing campaigns
- Effort: advanced
Suspicious Download Links From Legitimate Services
Detects users clicking on Google docs links to download suspicious files. This technique was used a lot by Bazar Loader in the past.
- Effort: intermediate
Suspicious File Name
Detects suspicious file name possibly linked to malicious tool.
- Effort: advanced
Suspicious PROCEXP152.sys File Created In Tmp
Detects the creation of the PROCEXP152.sys file in the application-data local temporary folder. This driver is used by Sysinternals Process Explorer but also by KDU (https://github.com/hfiref0x/KDU) or Ghost-In-The-Logs (https://github.com/bats3c/Ghost-In-The-Logs), which uses KDU. Note - Clever attackers may easily bypass this detection by just renaming the driver filename. Therefore just Medium-level and don't rely on it.
- Effort: advanced
Suspicious TOR Gateway
Detects suspicious TOR gateways. Gateways are often used by the victim to pay and decrypt the encrypted files without installing TOR. Tor intercepts the network traffic from one or more apps on user’s computer, usually the user web browser, and shuffles it through a number of randomly-chosen computers before passing it on to its destination. This disguises user location, and makes it harder for servers to pick him/her out on repeat visits, or to tie together separate visits to different sites, this making tracking and surveillance more difficult. Before a network packet starts its journey, user’s computer chooses a random list of relays and repeatedly encrypts the data in multiple layers, like an onion. Each relay knows only enough to strip off the outermost layer of encryption, before passing what’s left on to the next relay in the list.
- 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
Suspicious Windows DNS Queries
Detects a suspicious Windows command-line process making a DNS query via known abuse text paste web services. This is based on Microsoft Windows Sysmon events (Event ID 22).
- Effort: advanced
System Info Discovery
System info discovery, attempt to detects basic command use to fingerprint a host.
- Effort: master
TOR Usage Generic Rule
Detects TOR usage globally, whether the IP is a destination or source. TOR is short for The Onion Router, and it gets its name from how it works. TOR intercepts the network traffic from one or more apps on user’s computer, usually the user web browser, and shuffles it through a number of randomly-chosen computers before passing it on to its destination. This disguises user location, and makes it harder for servers to pick him/her out on repeat visits, or to tie together separate visits to different sites, this making tracking and surveillance more difficult. Before a network packet starts its journey, user’s computer chooses a random list of relays and repeatedly encrypts the data in multiple layers, like an onion. Each relay knows only enough to strip off the outermost layer of encryption, before passing what’s left on to the next relay in the list.
- Effort: master
Telegram Bot API Request
Detects suspicious DNS queries to api.telegram.org used by Telegram Bots of any kind
- Effort: advanced
TrevorC2 HTTP Communication
Detects TrevorC2 HTTP communication based on the HTTP request URI and the user-agent.
- Effort: elementary
User Account Created
Detects user creation on windows servers, which shouldn't happen in an Active Directory environment. Apply this on your windows server logs and not on your DC logs. One default account defaultuser0 is excluded as only used during Windows set-up. This detection use Security Event ID 4720.
- Effort: master
User Account Deleted
Detects local user deletion
- Effort: master
WCE wceaux.dll Creation
Detects wceaux.dll creation while Windows Credentials Editor (WCE) is executed.
- Effort: intermediate
ZIP LNK Infection Chain
Detection of an ZIP download followed by a child-process of explorer, followed by multiple Windows processes.This is widely used as an infection chain mechanism.
- Effort: advanced
Event Categories
The following table lists the data source offered by this integration.
| Data Source | Description |
|---|---|
Anti-virus |
McAfee Web Gateway / Skyhigh Secure Web Gateway analyze the content of requests and responses to prevent malware infection |
Web proxy |
McAfee Web Gateway / Skyhigh Secure Web Gateway logs provide information about the connected client and the requested resource |
Web logs |
McAfee Web Gateway / Skyhigh Secure Web Gateway logs provide information about the connected client and the requested resource |
In details, the following table denotes the type of events produced by this integration.
| Name | Values |
|---|---|
| Kind | `` |
| Category | network |
| Type | access, allowed, connection, denied |
Transformed Events Samples after Ingestion
This section demonstrates how the raw logs will be transformed by our parsers. It shows the extracted fields that will be available for use in the built-in detection rules and hunting activities in the events page. Understanding these transformations is essential for analysts to create effective detection mechanisms with custom detection rules and to leverage the full potential of the collected data.
{
"message": "date=\"2022-03-11T10:39:16.390Z\" hostname=\"mwgproxy\" username=\"\" source_ip=1.2.3.4 destination_ip=2.2.2.41 destination_host=\"www.forbiddensite.com\" http_status_code=403 media_type=\"\" source_bytes=131 destination_bytes=0 http_request_first_line=\"GET http://www.forbiddensite.com/ HTTP/1.1\" url_categories=\"Pornography\" url_reputation_string=\"Minimal Risk\" url_reputation_code=-28 ruleset_name=\"Default\" rule_name=\"Block URLs Whose Category Is in Category Blocklist for Default Groups\" block_id=10 block_reason=\"Blocked by URL filtering\" body_infected=false virus_names=\"\" body_modified=false application_reputation=\"Unverified\" application_name=\"forbiddenapp\" http_referer=\"\" user_agent=\"curl/7.77.0\"",
"event": {
"action": "denied",
"category": [
"network"
],
"code": "10",
"reason": "Blocked by URL filtering",
"start": "2022-03-11T10:39:16.390000Z"
},
"destination": {
"address": "www.forbiddensite.com",
"domain": "www.forbiddensite.com",
"ip": "2.2.2.41",
"registered_domain": "forbiddensite.com",
"subdomain": "www",
"top_level_domain": "com"
},
"http": {
"request": {
"bytes": 131,
"method": "GET"
},
"response": {
"bytes": 0,
"status_code": 403
}
},
"network": {
"direction": "egress"
},
"observer": {
"hostname": "mwgproxy",
"product": "McAfee Web Gateway",
"type": "proxy",
"vendor": "McAfee Corp."
},
"related": {
"hosts": [
"mwgproxy",
"www.forbiddensite.com"
],
"ip": [
"1.2.3.4",
"2.2.2.41"
]
},
"rule": {
"name": "Block URLs Whose Category Is in Category Blocklist for Default Groups",
"ruleset": "Default"
},
"skyhighsecurity": {
"application": {
"name": "forbiddenapp",
"reputation": "Unverified"
},
"http": {
"body": {
"infected": "false",
"modified": "false"
}
},
"url": {
"categories": [
"Pornography"
],
"reputation": "Minimal Risk",
"reputation_code": -28
}
},
"source": {
"address": "1.2.3.4",
"ip": "1.2.3.4"
},
"url": {
"domain": "www.forbiddensite.com",
"original": "http://www.forbiddensite.com/",
"path": "/",
"port": 80,
"registered_domain": "forbiddensite.com",
"scheme": "http",
"subdomain": "www",
"top_level_domain": "com"
},
"user_agent": {
"device": {
"name": "Other"
},
"name": "curl",
"original": "curl/7.77.0",
"os": {
"name": "Other"
},
"version": "7.77.0"
}
}
{
"message": "date=\"2022-03-17T13:14:39.134Z\" hostname=\"mwgproxy\" username=\"\" source_ip=1.2.3.4 destination_ip=2.2.2.2 destination_host=\"slscr.update.microsoft.com\" http_status_code=407 media_type=\"\" source_bytes=173 destination_bytes=0 http_request_first_line=\"CONNECT slscr.update.microsoft.com:443 HTTP/1.1\" url_categories=\"Business, Software/Hardware\" url_reputation_string=\"Minimal Risk\" url_reputation_code=-42 ruleset_name=\"Authentication: Direct Proxy\" rule_name=\"Authenticate: Active Directory\" block_id=81 block_reason=\"Authentication Required\" body_infected=false virus_names=\"\" body_modified=false application_reputation=\"Unverified\" application_name=\"\" http_referer=\"\" user_agent=\"\"",
"event": {
"action": "denied",
"category": [
"network"
],
"code": "81",
"reason": "Authentication Required",
"start": "2022-03-17T13:14:39.134000Z"
},
"destination": {
"address": "slscr.update.microsoft.com",
"domain": "slscr.update.microsoft.com",
"ip": "2.2.2.2",
"port": 443,
"registered_domain": "microsoft.com",
"subdomain": "slscr.update",
"top_level_domain": "com"
},
"http": {
"request": {
"bytes": 173,
"method": "CONNECT"
},
"response": {
"bytes": 0,
"status_code": 407
}
},
"network": {
"direction": "egress"
},
"observer": {
"hostname": "mwgproxy",
"product": "McAfee Web Gateway",
"type": "proxy",
"vendor": "McAfee Corp."
},
"related": {
"hosts": [
"mwgproxy",
"slscr.update.microsoft.com"
],
"ip": [
"1.2.3.4",
"2.2.2.2"
]
},
"rule": {
"name": "Authenticate: Active Directory",
"ruleset": "Authentication: Direct Proxy"
},
"skyhighsecurity": {
"application": {
"reputation": "Unverified"
},
"http": {
"body": {
"infected": "false",
"modified": "false"
}
},
"url": {
"categories": [
"Business",
"Software/Hardware"
],
"reputation": "Minimal Risk",
"reputation_code": -42
}
},
"source": {
"address": "1.2.3.4",
"ip": "1.2.3.4"
},
"url": {
"domain": "slscr.update.microsoft.com",
"port": 443,
"registered_domain": "microsoft.com",
"subdomain": "slscr.update",
"top_level_domain": "com"
}
}
{
"message": "date=\"2022-03-24T13:54:02.740Z\" hostname=\"mwgproxy\" username=\"myusername\" source_ip=1.2.3.4 destination_ip=255.255.255.255 destination_host=\"\" http_status_code=400 media_type=\"\" source_bytes=316 destination_bytes=0 http_request_first_line=\"CONNECT :80 HTTP/1.1\" url_categories=\"Business, Software/Hardware\" url_reputation_string=\"Minimal Risk\" url_reputation_code=-3 ruleset_name=\"Exception DFS\" rule_name=\"Forbidden Access\" block_id=10 block_reason=\"Blocked by URL filtering\" body_infected=false virus_names=\"\" body_modified=false application_reputation=\"Unverified\" application_name=\"\" http_referer=\"\" user_agent=\"\"",
"event": {
"action": "denied",
"category": [
"network"
],
"code": "10",
"reason": "Blocked by URL filtering",
"start": "2022-03-24T13:54:02.740000Z"
},
"destination": {
"address": "255.255.255.255",
"ip": "255.255.255.255"
},
"http": {
"request": {
"bytes": 316,
"method": "CONNECT"
},
"response": {
"bytes": 0,
"status_code": 400
}
},
"network": {
"direction": "egress"
},
"observer": {
"hostname": "mwgproxy",
"product": "McAfee Web Gateway",
"type": "proxy",
"vendor": "McAfee Corp."
},
"related": {
"hosts": [
"mwgproxy"
],
"ip": [
"1.2.3.4",
"255.255.255.255"
],
"user": [
"myusername"
]
},
"rule": {
"name": "Forbidden Access",
"ruleset": "Exception DFS"
},
"skyhighsecurity": {
"application": {
"reputation": "Unverified"
},
"http": {
"body": {
"infected": "false",
"modified": "false"
}
},
"url": {
"categories": [
"Business",
"Software/Hardware"
],
"reputation": "Minimal Risk",
"reputation_code": -3
}
},
"source": {
"address": "1.2.3.4",
"ip": "1.2.3.4"
},
"user": {
"name": "myusername"
}
}
{
"message": "date=\"2022-03-11T09:50:47.399Z\" hostname=\"mwgproxy\" username=\"myusername\" source_ip=1.2.3.4 destination_ip=142.250.178.131 destination_host=\"www.google.fr\" http_status_code=200 media_type=\"\" source_bytes=127 destination_bytes=14678 http_request_first_line=\"GET http://www.google.fr/ HTTP/1.1\" url_categories=\"Search Engines\" url_reputation_string=\"Minimal Risk\" url_reputation_code=0 ruleset_name=\"Dynamic Content Classification\" rule_name=\"Block URLs Whose Category Is in Category Blocklist\" block_id=0 block_reason=\"\" body_infected=false virus_names=\"\" body_modified=false application_reputation=\"Unverified\" application_name=\"\" http_referer=\"\" user_agent=\"curl/7.77.0\"",
"event": {
"action": "allowed",
"category": [
"network"
],
"code": "0",
"start": "2022-03-11T09:50:47.399000Z",
"type": [
"access",
"allowed",
"connection"
]
},
"destination": {
"address": "www.google.fr",
"domain": "www.google.fr",
"ip": "142.250.178.131",
"registered_domain": "google.fr",
"subdomain": "www",
"top_level_domain": "fr"
},
"http": {
"request": {
"bytes": 127,
"method": "GET"
},
"response": {
"bytes": 14678,
"status_code": 200
}
},
"network": {
"direction": "egress"
},
"observer": {
"hostname": "mwgproxy",
"product": "McAfee Web Gateway",
"type": "proxy",
"vendor": "McAfee Corp."
},
"related": {
"hosts": [
"mwgproxy",
"www.google.fr"
],
"ip": [
"1.2.3.4",
"142.250.178.131"
],
"user": [
"myusername"
]
},
"rule": {
"name": "Block URLs Whose Category Is in Category Blocklist",
"ruleset": "Dynamic Content Classification"
},
"skyhighsecurity": {
"application": {
"reputation": "Unverified"
},
"http": {
"body": {
"infected": "false",
"modified": "false"
}
},
"url": {
"categories": [
"Search Engines"
],
"reputation": "Minimal Risk",
"reputation_code": 0
}
},
"source": {
"address": "1.2.3.4",
"ip": "1.2.3.4"
},
"url": {
"domain": "www.google.fr",
"original": "http://www.google.fr/",
"path": "/",
"port": 80,
"registered_domain": "google.fr",
"scheme": "http",
"subdomain": "www",
"top_level_domain": "fr"
},
"user": {
"name": "myusername"
},
"user_agent": {
"device": {
"name": "Other"
},
"name": "curl",
"original": "curl/7.77.0",
"os": {
"name": "Other"
},
"version": "7.77.0"
}
}
{
"message": "user_id=-1 username=foo source_ip=37.171.139.5 http_action=CERTVERIFY server_to_client_bytes=0 client_to_server_bytes=0 requested_host=ping-edge.smartscreen.microsoft.com requested_path=/ result=OBSERVED virus= request_timestamp_epoch=1661260270 request_timestamp=2022-08-23 13:11:10 uri_scheme=https category=Business, Software/Hardware media_type=application/x-empty application_type= reputation=Minimal Risk last_rule=Allow http_status_code=200 client_ip=10.0.2.15 location= block_reason= user_agent_product=Other user_agent_version= user_agent_comment= process_name=msedge.exe destination_ip=20.108.130.238 destination_port=443 pop_country_code=FR referer= ssl_scanned=t av_scanned_up=t av_scanned_down=f rbi=f dlp=f client_system_name=desktop-rles2a6 filename= pop_egress_ip=161.69.108.44 pop_ingress_ip=10.42.47.222 proxy_port=8080",
"event": {
"action": "allowed",
"category": [
"network"
],
"type": [
"access",
"allowed",
"connection"
]
},
"@timestamp": "2022-08-23T13:11:10Z",
"destination": {
"address": "ping-edge.smartscreen.microsoft.com",
"bytes": 0,
"domain": "ping-edge.smartscreen.microsoft.com",
"ip": "20.108.130.238",
"port": 443,
"registered_domain": "microsoft.com",
"subdomain": "ping-edge.smartscreen",
"top_level_domain": "com"
},
"host": {
"name": "desktop-rles2a6"
},
"http": {
"request": {
"method": "CERTVERIFY",
"mime_type": "application/x-empty"
},
"response": {
"mime_type": "application/x-empty",
"status_code": 200
}
},
"network": {
"direction": "egress"
},
"observer": {
"product": "McAfee Web Gateway",
"type": "proxy",
"vendor": "McAfee Corp."
},
"process": {
"name": "msedge.exe"
},
"related": {
"hosts": [
"ping-edge.smartscreen.microsoft.com"
],
"ip": [
"10.0.2.15",
"20.108.130.238",
"37.171.139.5"
],
"user": [
"foo"
]
},
"rule": {
"category": "Business, Software/Hardware",
"name": "Allow"
},
"skyhighsecurity": {
"av_scanned_down": "false",
"av_scanned_up": "true",
"dlp": "false",
"proxy_port": 8080,
"rbi": "false",
"reputation": "Minimal Risk",
"ssl_scanned": "true"
},
"source": {
"address": "10.0.2.15",
"bytes": 0,
"ip": "10.0.2.15",
"nat": {
"ip": "37.171.139.5"
}
},
"url": {
"full": "https://ping-edge.smartscreen.microsoft.com/",
"original": "/",
"path": "/",
"port": 443,
"scheme": "https"
},
"user": {
"name": "foo"
}
}
{
"message": "user_id=-1 username=user source_ip=1.2.3.4 http_action=PUT server_to_client_bytes=7976 client_to_server_bytes=860 requested_host=wetransfer.com requested_path=/api/v4/transfers/azerty123/finalize result=OBSERVED virus= request_timestamp_epoch=1699464228 request_timestamp=2023-11-08 17:23:48 uri_scheme=https category=Personal Network Storage media_type=text/plain application_type=WeTransfer Channel reputation=Minimal Risk last_rule=Block URLs Whose Category Is in Category Blocklist http_status_code=200 client_ip=4.3.2.1 location= block_reason= user_agent_product=Chrome user_agent_version=119.0.0.0 user_agent_comment=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36 process_name=chrome.exe destination_ip=5.6.7.8 destination_port=443 pop_country_code=FR referer=https://wetransfer.com/ ssl_scanned=t av_scanned_up=t av_scanned_down=t rbi=f dlp=f client_system_name=por-005003 filename=finalize pop_egress_ip=4.5.6.7 pop_ingress_ip=4.5.6.7 proxy_port=8080",
"event": {
"action": "allowed",
"category": [
"network"
],
"type": [
"access",
"allowed",
"connection"
]
},
"@timestamp": "2023-11-08T17:23:48Z",
"destination": {
"address": "wetransfer.com",
"bytes": 7976,
"domain": "wetransfer.com",
"ip": "5.6.7.8",
"port": 443,
"registered_domain": "wetransfer.com",
"top_level_domain": "com"
},
"file": {
"name": "finalize"
},
"host": {
"name": "por-005003"
},
"http": {
"request": {
"method": "PUT",
"mime_type": "text/plain"
},
"response": {
"mime_type": "text/plain",
"status_code": 200
}
},
"network": {
"direction": "egress"
},
"observer": {
"product": "McAfee Web Gateway",
"type": "proxy",
"vendor": "McAfee Corp."
},
"process": {
"name": "chrome.exe"
},
"related": {
"hosts": [
"wetransfer.com"
],
"ip": [
"1.2.3.4",
"4.3.2.1",
"5.6.7.8"
],
"user": [
"user"
]
},
"rule": {
"category": "Personal Network Storage",
"name": "Block URLs Whose Category Is in Category Blocklist"
},
"skyhighsecurity": {
"application_type": "WeTransfer Channel",
"av_scanned_down": "true",
"av_scanned_up": "true",
"dlp": "false",
"proxy_port": 8080,
"rbi": "false",
"referer": "https://wetransfer.com/",
"reputation": "Minimal Risk",
"ssl_scanned": "true",
"user_agent_comment": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36",
"user_agent_version": "119.0.0.0"
},
"source": {
"address": "4.3.2.1",
"bytes": 860,
"ip": "4.3.2.1",
"nat": {
"ip": "1.2.3.4"
}
},
"url": {
"full": "https://wetransfer.com/api/v4/transfers/azerty123/finalize",
"original": "/api/v4/transfers/azerty123/finalize",
"path": "/api/v4/transfers/azerty123/finalize",
"port": 443,
"scheme": "https"
},
"user": {
"name": "user"
}
}
{
"message": "id=-1 username=autorite nt\\\\service r\u00c9seau source_ip=1.1.1.1 http_action=GET server_to_client_bytes=3160 client_to_server_bytes=1137 requested_host=ctldl.windowsupdate.com requested_path=/msdownload/update/v3/static/trustedr/en/pinrulesstl.cab result=DENIED virus= request_timestamp_epoch=1661266553 request_timestamp=2022-08-23 14:55:53 uri_scheme=http category=Software/Hardware media_type= application_type= reputation=Minimal Risk last_rule=Block if MCP Authentication Failed http_status_code=403 client_ip=1.1.1.1 location= block_reason=Authentication Required user_agent_product=Other user_agent_version= user_agent_comment= process_name=svchost.exe destination_ip=1.1.1.1 destination_port=80 pop_country_code=fr referer= ssl_scanned=f av_scanned_up=f av_scanned_down=f rbi=f dlp=f client_system_name= filename=pinrulesstl.cab pop_egress_ip=1.1.1.1pop_ingress_ip=1.1.1.1 proxy_port=80",
"event": {
"action": "denied",
"category": [
"network"
],
"reason": "Authentication Required",
"type": [
"access",
"connection",
"denied"
]
},
"@timestamp": "2022-08-23T14:55:53Z",
"destination": {
"address": "ctldl.windowsupdate.com",
"bytes": 3160,
"domain": "ctldl.windowsupdate.com",
"ip": "1.1.1.1",
"port": 80,
"registered_domain": "windowsupdate.com",
"subdomain": "ctldl",
"top_level_domain": "com"
},
"file": {
"name": "pinrulesstl.cab"
},
"http": {
"request": {
"method": "GET"
},
"response": {
"status_code": 403
}
},
"network": {
"direction": "egress"
},
"observer": {
"product": "McAfee Web Gateway",
"type": "proxy",
"vendor": "McAfee Corp."
},
"process": {
"name": "svchost.exe"
},
"related": {
"hosts": [
"ctldl.windowsupdate.com"
],
"ip": [
"1.1.1.1"
],
"user": [
"autorite nt\\\\service r\u00c9seau"
]
},
"rule": {
"category": "Software/Hardware",
"name": "Block if MCP Authentication Failed"
},
"skyhighsecurity": {
"av_scanned_down": "false",
"av_scanned_up": "false",
"dlp": "false",
"proxy_port": 80,
"rbi": "false",
"reputation": "Minimal Risk",
"ssl_scanned": "false"
},
"source": {
"address": "1.1.1.1",
"bytes": 1137,
"ip": "1.1.1.1",
"nat": {
"ip": "1.1.1.1"
}
},
"url": {
"full": "http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/pinrulesstl.cab",
"original": "/msdownload/update/v3/static/trustedr/en/pinrulesstl.cab",
"path": "/msdownload/update/v3/static/trustedr/en/pinrulesstl.cab",
"port": 80,
"scheme": "http"
},
"user": {
"name": "autorite nt\\\\service r\u00c9seau"
}
}
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.bytes |
long |
Bytes sent from the destination to the source. |
destination.domain |
keyword |
The domain name of the destination. |
destination.ip |
ip |
IP address of the destination. |
destination.port |
long |
Port of the destination. |
event.action |
keyword |
The action captured by the event. |
event.category |
keyword |
Event category. The second categorization field in the hierarchy. |
event.code |
keyword |
Identification code for this event. |
event.reason |
keyword |
Reason why this event happened, according to the source |
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. |
file.name |
keyword |
Name of the file including the extension, without the directory. |
host.name |
keyword |
Name of the host. |
http.request.bytes |
long |
Total size in bytes of the request (body and headers). |
http.request.method |
keyword |
HTTP request method. |
http.request.mime_type |
keyword |
Mime type of the body of the request. |
http.request.referrer |
keyword |
Referrer for this HTTP request. |
http.response.bytes |
long |
Total size in bytes of the response (body and headers). |
http.response.mime_type |
keyword |
Mime type of the body of the response. |
http.response.status_code |
long |
HTTP response status code. |
network.direction |
keyword |
Direction of the network traffic. |
observer.hostname |
keyword |
Hostname of the observer. |
observer.product |
keyword |
The product name of the observer. |
observer.type |
keyword |
The type of the observer the data is coming from. |
observer.vendor |
keyword |
Vendor name of the observer. |
process.name |
keyword |
Process name. |
rule.category |
keyword |
Rule category |
rule.name |
keyword |
Rule name |
rule.ruleset |
keyword |
Rule ruleset |
skyhighsecurity.application.name |
keyword |
The name of the web application requested |
skyhighsecurity.application.reputation |
keyword |
The reputation string of the web application requested |
skyhighsecurity.http.body.infected |
keyword |
Flag to indicate if the body was infected |
skyhighsecurity.http.body.modified |
keyword |
Flag to indicate if the body was modified (due to infection) |
skyhighsecurity.url.categories |
text |
The list of categories associated to the url |
skyhighsecurity.url.reputation |
keyword |
The reputation string of an url |
skyhighsecurity.url.reputation_code |
number |
The reputation code of an url |
skyhighsecurity.viruses |
text |
A list of virus name |
source.bytes |
long |
Bytes sent from the source to the destination. |
source.ip |
ip |
IP address of the source. |
source.nat.ip |
ip |
Source NAT ip |
url.domain |
keyword |
Domain of the url. |
url.full |
wildcard |
Full unparsed URL. |
url.original |
wildcard |
Unmodified original url as seen in the event source. |
url.path |
wildcard |
Path of the request, such as "/search". |
url.port |
long |
Port of the request, such as 443. |
url.scheme |
keyword |
Scheme of the url. |
user.name |
keyword |
Short name or login of the user. |
user_agent.original |
keyword |
Unparsed user_agent string. |
For more information on the Intake Format, please find the code of the Parser, Smart Descriptions, and Supported Events here.