Suspicious parent spawning fontdrvhost
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About the rule
Rule Type
Standard
Rule Description
Detects instances where "fontdrvhost.exe" process are not spawned by the legitimate "wininit.exe" or "winlogon.exe" processes
Severity
Critical
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (PROCESSNAME endswith "fontdrvhost.exe" AND (PARENTPROCESSNAME notendswith "Windows\System32\wininit.exe" AND PARENTPROCESSNAME notendswith "Windows\SysWow64\wininit.exe" AND PARENTPROCESSNAME notendswith "WINNT\system32\wininit.exe" AND PARENTPROCESSNAME notendswith "Windows\System32\winlogon.exe" AND PARENTPROCESSNAME notendswith "Windows\SysWow64\winlogon.exe" AND PARENTPROCESSNAME notendswith "WINNT\system32\winlogon.exe")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
