Execution (TA0002)(opens in a new tab or window)
endpoint(opens in a new tab or window)
windows(opens in a new tab or window)
process where host.os.type == "windows" and event.type == "start" and
process.name : "conhost.exe" and
process.parent.name : ("lsass.exe", "services.exe", "smss.exe", "winlogon.exe", "explorer.exe", "dllhost.exe", "rundll32.exe",
"regsvr32.exe", "userinit.exe", "wininit.exe", "spoolsv.exe", "ctfmon.exe") and
not (process.parent.name : "rundll32.exe" and
process.parent.args : ("?:\\Windows\\Installer\\MSI*.tmp,zzzzInvokeManagedCustomActionOutOfProc",
"?:\\WINDOWS\\system32\\PcaSvc.dll,PcaPatchSdbTask",
"?:\\WINDOWS\\system32\\davclnt.dll,DavSetCookie"))
Install detection rules in Elastic Security
Detect Conhost Spawned By Suspicious Parent Process in the Elastic Security detection engine by installing this rule into your Elastic Stack.
To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).