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MediumSplunk security content Dean Luxton

Windows AD GPO New CSE Addition

This detection identifies when a a new client side extension is added to an Active Directory Group Policy using the Group Policy Management Console.

Detection logic

Detection requirements

Platform: Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
Log source category: windows_event_log_security_5136

Known benign triggers

General usage of group policy will trigger this detection, also please not GPOs modified using tools such as SharpGPOAbuse will not generate the AD audit events which enable this detection.

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
github.com/FSecureLABS/SharpGPOAbuse	Tool	Only this detection cites it
lantern.splunk.com/Security/Product_Tips/Enterprise_Security/Enabling_an_audit_trail_from_Active_Directory	Product documentation	15
learn.microsoft.com/en-gb/archive/blogs/mempson/group-policy-client-side-extension-list	Product documentation	Only this detection cites it
wald0.com/?p=179	Unclassified	Only this detection cites it

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