Persistence (TA0003)(external, opens in a new tab or window)
Privilege Escalation (TA0004)(external, opens in a new tab or window)
endpoint(external, opens in a new tab or window)
windows(external, opens in a new tab or window)
m365_defender(external, opens in a new tab or window)
sentinel_one_cloud_funnel(external, opens in a new tab or window)
text code block:process where host.os.type == "windows" and event.type == "start" and process.parent.executable : "C:\\Windows\\System32\\svchost.exe" and process.parent.args : "UsoSvc" and not process.executable : ("?:\\ProgramData\\Microsoft\\Windows\\UUS\\Packages\\*\\amd64\\MoUsoCoreWorker.exe", "?:\\Windows\\System32\\UsoClient.exe", "?:\\Windows\\System32\\MusNotification.exe", "?:\\Windows\\System32\\MusNotificationUx.exe", "?:\\Windows\\System32\\MusNotifyIcon.exe", "?:\\Windows\\System32\\WerFault.exe", "?:\\Windows\\System32\\WerMgr.exe", "?:\\Windows\\UUS\\amd64\\MoUsoCoreWorker.exe", "?:\\Windows\\System32\\MoUsoCoreWorker.exe", "?:\\Windows\\UUS\\amd64\\UsoCoreWorker.exe", "?:\\Windows\\System32\\UsoCoreWorker.exe", "?:\\Program Files\\Common Files\\microsoft shared\\ClickToRun\\OfficeC2RClient.exe") and not process.name : ("MoUsoCoreWorker.exe", "OfficeC2RClient.exe")
Install detection rules in Elastic Security
Detect Persistence via Update Orchestrator Service Hijack 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(external, opens in a new tab or window).