Windows Processes Suspicious Parent Directory
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About the rule
Rule Type
Standard
Rule Description
Detect suspicious parent processes of well-known Windows processes
Severity
Attention
Rule Requirement
Criteria
Action1: actionname = "Process started" AND PROCESSNAME endswith "\svchost.exe,\taskhost.exe,\lsm.exe,\lsass.exe,\services.exe,\lsaiso.exe,\csrss.exe,\wininit.exe,\winlogon.exe" AND ((PARENTPROCESSNAME notendswith "\SavService.exe,\ngen.exe" AND PARENTPROCESSNAME notcontains "\System32\,\SysWOW64") AND (PARENTPROCESSNAME notcontains "\Windows Defender\,\Microsoft Security Client" OR PARENTPROCESSNAME notendswith "\MsMpEng.exe") AND (isExist(PARENTPROCESSNAME) AND PARENTPROCESSNAME != ",-")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
vburov
