Unusual Child Process from Critical System Process
Detection of unusual child processes (PowerShell or Command Prompt) spawned by critical system processes (winlogon.exe, services.exe, lsass.exe, csrss.exe, smss.exe, wininit.exe, spoolsv.exe, searchindexer.exe) running under an authorized user context. This behavior can indicate privilege escalation or defense evasion, especially if the spawned process is not related to legitimate network routing commands.
Sigma
