Sigma rule: Potential Persistence Via Microsoft Compatibility Appraiser

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-0ee492301da0, updated 2023-02-10T00:00:00.000Z.

Rule

Title
Potential Persistence Via Microsoft Compatibility Appraiser
Status
test
Level
medium
Author
Sreeman
Date
2020-09-29
Modified
2023-02-10
File
rules/windows/process_creation/proc_creation_win_schtasks_persistence_windows_telemetry.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects manual execution of the "Microsoft Compatibility Appraiser" task via schtasks.
In order to trigger persistence stored in the "\AppCompatFlags\TelemetryController" registry key.

Log source

product
windows
category
process_creation

Detection

selection_img:
    - Image|endswith: '\schtasks.exe'
    - OriginalFileName: 'schtasks.exe'
selection_cli:
    CommandLine|contains|all:
        - 'run '
        - '\Application Experience\Microsoft Compatibility Appraiser'
condition: all of selection_*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.privilege-escalation
  • attack.execution
  • attack.persistence
  • attack.t1053.005

MITRE ATT&CK ids this rule names

Related rules

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_schtasks_persistence_windows_telemetry.yml

Sources and licences

  • SigmaHQ

    "Potential Persistence Via Microsoft Compatibility Appraiser" by Sreeman (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_schtasks_persistence_windows_telemetry.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Potential Persistence Via Microsoft Compatibility Appraiser",
entity page, dataset version ref-0ee492301da0, updated 2023-02-10T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/f548a603-c9f2-4c89-b511-b089f7e94549 (accessed 2026-11-03).
Underlying source: SigmaHQ rule f548a603-c9f2-4c89-b511-b089f7e94549, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.