IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Persistence via TelemetryController Scheduled Task Hijack

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Persistence via TelemetryController Scheduled Task Hijack

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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:

https://www.trustedsec.com/blog/abusing-windows-telemetry-for-persistence/?utm_content=131234033&utm_medium=social&utm_source=twitter&hss_channel=tw-403811306

Tags:

Elastic
Host
Windows
Threat Detection
Persistence

Version: 9 (version history)

Added (Elastic Stack release): 7.10.0

Last modified (Elastic Stack release): 8.4.0

Rule authors: Elastic

Rule license: Elastic License v2

Investigation guide

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Rule query

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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

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
Technique:
- Name: Scheduled Task/Job
- ID: T1053
- Reference URL: https://attack.mitre.org/techniques/T1053/

Rule version history

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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)

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