Potential Persistence Via AppCompat RegisterAppRestart Layer
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About the rule
Rule Type
Standard
Rule Description
Detects the setting of the REGISTERAPPRESTART compatibility layer on an application. This compatibility layer allows an application to register for restart using the "RegisterApplicationRestart" API. This can be potentially abused as a persistence mechanism.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND (OBJECTNAME contains "\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" OR (OBJECTNAME endswith "\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" AND isExist(OBJECTVALUENAME))) AND INFORMATION contains "REGISTERAPPRESTART" select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
