Suspicious parent spawning autochk

Last updated on:

Applies to: Log360Log360 Cloud

About the rule

Rule Type

Standard

Rule Description

Detects instances of the "autochk.exe" process that are not spawned by the legitimate "smss.exe" process

Severity

Critical

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (PROCESSNAME endswith "autochk.exe" AND (PARENTPROCESSNAME notendswith "Windows\System32\smss.exe" AND PARENTPROCESSNAME notendswith "Windows\SysWow64\smss.exe" AND PARENTPROCESSNAME notendswith "Windows\smss.exe" AND PARENTPROCESSNAME notendswith "Windows\System32\Event Agent\Bin\smss.exe")) 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