Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
1,304 detections
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Detects the use of the "Get-ADComputer" cmdlet in order to identify systems which are configured for unconstrained delegation.
'This query helps identify rare DNS connections and resulting data transfer to/from the associated domain. It can help identify unexpected large data transfers to or from internal systems which may indicate data exfil or malicious tool download.'
This query visualises total emails with Malware detections over time summarizing the data daily by Malware detection technologies/controls used for detecting unknown-unique malware.
'This query looks at correlating different reconnaissance alerts with interactive logon logs to help analysts investigate initial possible compromise activity'
Detects usage of the "Import-Module" cmdlet to load the "Microsoft.ActiveDirectory.Management.dl" DLL. Which is often used by attackers to perform AD enumeration.
Microsoft has observed attackers exploiting vulnerabilities associated with Log4J.
Search for the CVEs that should be prioritized and resolved to reduce the success of the FireEye Red Team tools compromised by the Nobelium activity group.
See red_team_tool_countermeasures on the official FireEye repo.
References:
https://github.com/fireeye/red_team_tool_countermeasures/blob/master/CVEs_red_team_tools.md
https://github.com/fireeye
See red_team_tool_countermeasures on the official FireEye repo.
References:
https://github.com/fireeye/red_team_tool_countermeasures/blob/master/CVEs_red_team_tools.md
https://github.com/fireeye
Suspicious Git Clone
Sigma
Detects execution of "git" in order to clone a remote repository that contain suspicious keywords which might be suspicious
Detects the execution of PingCastle, a tool designed to quickly assess the Active Directory security level via a script located in a potentially suspicious or uncommon location.
Detects Crassus, a Windows privilege escalation discovery tool, based on PE metadata characteristics.
'Highlights accounts associated with multiple authentications from different geographical locations in a short period of time.'
'This query combines different SQL alerts with CommonSecurityLogs and AuditLogs helping analysts /investigate any possible SQL related attacks faster
thus reducing Mean Time To Respond'
thus reducing Mean Time To Respond'
'This query examines Microsoft Entra ID sign-ins and identifies anomalous changes in a user's location profile. A variation joins results back onto the original sign-in data to review the location set with each identified user in tabular form.'
'Identifies a match across various data feeds for hashes and IP IOC related to Europium
Reference: https://www.microsoft.com/security/blog/2022/09/08/microsoft-investigates-iranian-attacks-against-the-albanian-government'
Reference: https://www.microsoft.com/security/blog/2022/09/08/microsoft-investigates-iranian-attacks-against-the-albanian-government'
'This query combines different Storage alerts with CommonSecurityLogs and AuditLogs helping analysts investigate any possible storage related attacks faster
thus reducing Mean Time To Respond'
thus reducing Mean Time To Respond'
'Identifies when 30 or more ports are used for a given client IP in 10 minutes occurring on the IIS server.
This could be indicative of attempted port scanning or exploit attempt at internet facing web applications.
This could also simply indicate a misconfigured service or device.
References:
IIS status code mapping - https://support.microsoft.com/help/943891/the-http-status-code-in-iis-7-0-iis-7-5-and-iis-8-0
Win32 Status code mapping - https://msdn.microsoft.com/library/cc231199.aspx'
This could be indicative of attempted port scanning or exploit attempt at internet facing web applications.
This could also simply indicate a misconfigured service or device.
References:
IIS status code mapping - https://support.microsoft.com/help/943891/the-http-status-code-in-iis-7-0-iis-7-5-and-iis-8-0
Win32 Status code mapping - https://msdn.microsoft.com/library/cc231199.aspx'
Detects the execution of PingCastle, a tool designed to quickly assess the Active Directory security level.
Detects the execution of PingCastle, a tool designed to quickly assess the Active Directory security level via a script located in a potentially suspicious or uncommon location.
This query was originally published in the threat analytics report, Sysrv botnet evolution.
Sysrv is a Go-based botnet that targets both Windows and Linux servers, and steals resources to mine cryptocurrency.
The following query finds instances of remote code execution on a vulnerable Linux server.
Sysrv is a Go-based botnet that targets both Windows and Linux servers, and steals resources to mine cryptocurrency.
The following query finds instances of remote code execution on a vulnerable Linux server.
Detects DNS queries for IP lookup services such as "api.ipify.org" originating from a non browser process.
Detects the execution of PingCastle, a tool designed to quickly assess the Active Directory security level.
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