Windows Credential Guard Registry Tampering Via CommandLine
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About the rule
Rule Type
Standard
Rule Description
Detects attempts to add, modify, or delete Windows Credential Guard related registry keys or values via command line tools such as Reg.exe or PowerShell.
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "Process started" AND ( PROCESSNAME endswith "\powershell.exe,\pwsh.exe,\reg.exe" OR ORIGINALFILENAME = "PowerShell.EXE,pwsh.dll,reg.exe" ) AND ( COMMANDLINE contains "add ,New-ItemProperty ,Set-ItemProperty ,si ,delete ,del ,Remove-ItemProperty ,rp " AND COMMANDLINE contains "\Control\DeviceGuard ,\Control\LSA ,Software\Policies\Microsoft\Windows\DeviceGuard " AND COMMANDLINE contains "EnableVirtualizationBasedSecurity,RequirePlatformSecurityFeatures,LsaCfgFlags" )
select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME,Action1.DOMAIN,Action1.ORIGINALFILENAME,Action1.PARENTPROCESSID,Action1.PROCESSID,Action1.PRODUCT_NAME,Action1.SECURITYID
Detection
Execution Mode
realtime
Log Sources
Windows
Author
@Swachchhanda Shrawan Poudel (Nextron Systems)
