SigmaHQ Detections
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6,797 detections
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Detects attempts to remove Windows Defender configurations using the 'MpPreference' cmdlet
Detects the use of PowerShell with Uninstall-WindowsFeature or Remove-WindowsFeature cmdlets to disable or remove the Windows Defender GUI feature, a common technique used by adversaries to evade defenses.
Detects the usage of "reg.exe" to add Defender folder exclusions. Qbot has been seen using this technique to add exclusions for folders within AppData and ProgramData.
Detects the use of reg.exe to disable the Event Tracing for Windows (ETW) Autologger session for Windows Defender API and Audit events.
By setting the 'Start' value to '0' for the 'DefenderApiLogger' or 'DefenderAuditLogger' session, an attacker can prevent these critical security events
from being logged, effectively blinding monitoring tools that rely on this data. This is a powerful defense evasion technique.
By setting the 'Start' value to '0' for the 'DefenderApiLogger' or 'DefenderAuditLogger' session, an attacker can prevent these critical security events
from being logged, effectively blinding monitoring tools that rely on this data. This is a powerful defense evasion technique.
Detects commands that temporarily turn off Volume Snapshots
Detects the import of an alternate data stream with regini.exe, regini.exe can be used to modify registry keys.
Detects the execution of a renamed BOINC binary.
Detects one of the possible scenarios for disabling Symantec Endpoint Protection.
Symantec Endpoint Protection antivirus software services incorrectly implement the protected service mechanism.
As a result, the NT AUTHORITY/SYSTEM user can execute the taskkill /im command several times ccSvcHst.exe /f, thereby killing the process belonging to the service, and thus shutting down the service.
Symantec Endpoint Protection antivirus software services incorrectly implement the protected service mechanism.
As a result, the NT AUTHORITY/SYSTEM user can execute the taskkill /im command several times ccSvcHst.exe /f, thereby killing the process belonging to the service, and thus shutting down the service.
Detects the deletion of AMSI provider registry key entries in HKLM\Software\Microsoft\AMSI. This technique could be used by an attacker in order to disable AMSI inspection.
Detects any deletion of entries in ".*\shell\open\command" registry keys.
These registry keys might have been used for COM hijacking activities by a threat actor or an attacker and the deletion could indicate steps to remove its tracks.
These registry keys might have been used for COM hijacking activities by a threat actor or an attacker and the deletion could indicate steps to remove its tracks.
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