Persistence via Update Orchestrator Service Hijack

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")