Windows Masquerading Explorer As Child Process

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About the rule

Rule Type

Standard

Rule Description

Detects instances where a process is attempting to masquerade as Explorer.exe or is spawned as a child process of Explorer.exe

Severity

Critical

Rule Requirement

Criteria

Action1: actionname = "Process started" AND ((PARENTPROCESSNAME endswith "cmd.exe" OR PARENTPROCESSNAME endswith "powershell.exe" OR PARENTPROCESSNAME endswith "regsvr32.exe") AND (PROCESSNAME endswith "Windows\explorer.exe" OR PROCESSNAME endswith "Windows\SysWow64\explorer.exe")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows