Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

1,907 detections

Detects Obfuscated Powershell via COMPRESS OBFUSCATION
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects Obfuscated Powershell via Stdin in Scripts
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects Obfuscated Powershell via use Clip.exe in Scripts
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects Obfuscated Powershell via use MSHTA in Scripts
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects Obfuscated Powershell via use Rundll32 in Scripts
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects Obfuscated Powershell via VAR++ LAUNCHER
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects modification of dMSA link attributes (msDS-ManagedAccountPrecededByLink) via PowerShell scripts.
This command line pattern could be an indicator an attempt to exploit the BadSuccessor privilege escalation vulnerability in Windows Server 2025.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects PowerShell module creation where the module Contents are set to "function Get-VMRemoteFXPhysicalVideoAdapter". This could be a sign of potential abuse of the "RemoteFXvGPUDisablement.exe" binary which is known to be vulnerable to module load-order hijacking.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects Base64 encoded Shellcode
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects usage of certain functions and keywords that are used to manipulate security descriptors in order to potentially set a backdoor. As seen used in the DAMP project.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects usage of known powershell cmdlets such as "Clear-EventLog" to clear the Windows event logs
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects execution of "TroubleshootingPack" cmdlets to leverage CVE-2022-30190 or action similar to "msdt" lolbin (as described in LOLBAS)
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects when when a mounted share is removed. Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects usage of the "Write-EventLog" cmdlet with 'RawData' flag. The cmdlet can be levreage to write malicious payloads to the EventLog and then retrieve them later for later use
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects usage of the "Set-Service" powershell cmdlet to configure a new SecurityDescriptor that allows a service to be hidden from other utilities such as "sc.exe", "Get-Service"...etc. (Works only in powershell 7)
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects usage of the WMI class "Win32_NTEventlogFile" in a potentially suspicious way (delete, backup, change permissions, etc.) from a PowerShell script
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects when a user disables the Windows Firewall via a Profile to help evade defense.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detect use of X509Enrollment
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects the creation of a dMSASvc account using the New-ADServiceAccount cmdlet in certain OUs.
The fact that the Cmdlet is used to create a dMSASvc account in a specific OU is highly suspicious.
It is a pattern trying to exploit the BadSuccessor privilege escalation vulnerability in Windows Server 2025.
On top of that, if the user that is creating the dMSASvc account is not a legitimate administrator or does not have the necessary permissions,
it is a strong signal of an attempted or successful abuse of the BaDSuccessor vulnerability for privilege escalation within the Windows Server 2025 Active Directory environment.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects suspicious command lines used in Covenant luanchers
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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Detects some Empire PowerShell UAC bypass methods
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
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