UAC Bypass Using Windows Media Player - Registry
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About the rule
Rule Type
Standard
Rule Description
Detects the pattern of UAC Bypass using Windows Media Player osksupport.dll (UACMe 32)
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "Registry value modified" AND (OBJECTNAME endswith "\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Store\C:\Program Files\Windows Media Player\osk.exe" OR (OBJECTNAME endswith "\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Store\C:\Program Files\Windows Media Player" AND OBJECTVALUENAME = "osk.exe")) AND INFORMATION = "Binary Data"
select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES,Action1.USERNAME,Action1.DOMAIN,Action1.NEWTYPE,Action1.OBJECTVALUENAME,Action1.OLDTYPE
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Christian Burkard (Nextron Systems)
