Potentially Suspicious Call To Win32_NTEventlogFile Class
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About the rule
Rule Type
Standard
Rule Description
Detects usage of the WMI class "Win32_NTEventlogFile" in a potentially suspicious way (delete, backup, change permissions, etc.) from a PowerShell script
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND COMMANDLINE contains "Win32_NTEventlogFile" AND COMMANDLINE contains ".BackupEventlog(,.ChangeSecurityPermissions(,.ChangeSecurityPermissionsEx(,.ClearEventLog(,.Delete(,.DeleteEx(,.Rename(,.TakeOwnerShip(,.TakeOwnerShipEx(" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
