IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
« Persistence via Scheduled Job Creation Persistence via Update Orchestrator Service Hijack »
Elastic Docs ›Elastic Security Solution [8.5] ›Detections and alerts ›Prebuilt rule reference

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: 101 (version history)

Added (Elastic Stack release): 7.10.0

Last modified (Elastic Stack release): 8.5.0

Rule authors: Elastic

Rule license: Elastic License v2

Investigation guide

edit











Rule query
edit








process where event.type == "start" 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 101 (8.5.0 release)








    

  • 

    Updated query, changed from:
    

    

    

    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")
    

    

    • 









Version 9 (8.4.0 release)








    

  • 
Formatting only

    • 









Version 7 (8.2.0 release)








    

  • 
Formatting only

    • 









Version 6 (7.16.0 release)








    

  • 
Formatting only

    • 









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)
    

    

    • 




















« Persistence via Scheduled Job Creation


Persistence via Update Orchestrator Service Hijack »