HighSigmaHQ Nasreddine Bencherchali (Nextron Systems)

Suspicious Service DACL Modification Via Set-Service Cmdlet

Detects suspicious DACL modifications via the "Set-Service" cmdlet using the "SecurityDescriptorSddl" flag (Only available with PowerShell 7) that can be used to hide services or make them unstopable

Detection logic

Detection requirements

Platform: Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source category: process_creation

Known benign triggers

Unknown

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
learn.microsoft.com/pt-br/windows/win32/secauthz/sid-strings	Product documentation	Only this detection cites it
www.sans.org/blog/red-team-tactics-hiding-windows-services/	Unclassified	7from 3 sources

Detection rules

Suspicious Service DACL Modification Via Set-Service Cmdlet

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules