Persistence via TelemetryController Scheduled Task Hijack

edit

Persistence via TelemetryController Scheduled Task Hijack

edit

Detects the successful hijack of Microsoft Compatibility Appraiser scheduled task to establish persistence with an integrity level of system.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-endpoint.events.*
  • logs-windows.*

Severity: high

Risk score: 73

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Persistence

Version: 5 (version history)

Added (Elastic Stack release): 7.10.0

Last modified (Elastic Stack release): 7.13.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

edit
process where event.type in ("start", "process_started") and
process.parent.name : "CompatTelRunner.exe" and process.args : "-cv*"
and not process.name : ("conhost.exe",
"DeviceCensus.exe", "CompatTelRunner.exe",
"DismHost.exe", "rundll32.exe",
"powershell.exe")

Threat mapping

edit

Framework: MITRE ATT&CKTM

Rule version history

edit
Version 5 (7.13.0 release)
  • Updated query, changed from:

    event.category:process and event.type:(start or process_started) and
    process.parent.name:(CompatTelRunner.exe or compattelrunner.exe) and
    process.args:-cv* and not process.name:(conhost.exe or
    DeviceCensus.exe or devicecensus.exe or CompatTelRunner.exe or
    compattelrunner.exe or DismHost.exe or dismhost.exe or rundll32.exe or
    powershell.exe)
Version 4 (7.12.0 release)
  • Formatting only
Version 3 (7.11.2 release)
  • Formatting only
Version 2 (7.11.0 release)
  • Updated query, changed from:

    event.category:process and event.type:(start or process_started) and
    process.parent.name:(CompatTelRunner.exe or compattelrunner.exe) and
    not process.name:(conhost.exe or DeviceCensus.exe or devicecensus.exe
    or CompatTelRunner.exe or compattelrunner.exe or DismHost.exe or
    dismhost.exe or rundll32.exe)