Suspicious WmiPrvSE Child Process
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About the rule
Rule Type
Standard
Rule Description
Detects suspicious and uncommon child processes of WmiPrvSE
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "Process started" AND PARENTPROCESSNAME endswith "\wbem\WmiPrvSE.exe" AND (PROCESSNAME endswith "\certutil.exe,\cscript.exe,\mshta.exe,\msiexec.exe,\regsvr32.exe,\rundll32.exe,\verclsid.exe,\wscript.exe" OR (PROCESSNAME endswith "\cmd.exe" AND COMMANDLINE contains "cscript,mshta,powershell,pwsh,regsvr32,rundll32,wscript")) AND (PROCESSNAME notendswith "\WerFault.exe" AND PROCESSNAME notendswith "\WmiPrvSE.exe" AND (PROCESSNAME notendswith "\msiexec.exe" OR COMMANDLINE notcontains "/i "))
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
Vadim Khrykov (ThreatIntel), Cyb3rEng, Florian Roth (Nextron Systems)
