ETW Logging Disabled In .NET Processes - Sysmon Registry
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About the rule
Rule Type
Standard
Rule Description
Potential adversaries stopping ETW providers recording loaded .NET assemblies.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND ((OBJECTNAME endswith "SOFTWARE\Microsoft\.NETFramework\ETWEnabled" OR (OBJECTNAME endswith "SOFTWARE\Microsoft\.NETFramework" AND OBJECTVALUENAME = "ETWEnabled")) AND (INFORMATION = "DWORD (0x00000000)" OR (CHANGES = 0 AND NEWTYPE = "REG_DWORD"))) OR (OBJECTNAME endswith "\COMPlus_ETWEnabled,\COMPlus_ETWFlags" AND INFORMATION = "0,DWORD (0x00000000)") select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
