Sigma rule: PUA - Mouse Lock Execution

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-f23e0a21c478, updated 2023-02-21T00:00:00.000Z.

Rule

Title
PUA - Mouse Lock Execution
Status
test
Level
medium
Author
Cian Heasley
Date
2020-08-13
Modified
2023-02-21
File
rules/windows/process_creation/proc_creation_win_pua_mouselock_execution.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

In Kaspersky's 2020 Incident Response Analyst Report they listed legitimate tool "Mouse Lock" as being used for both credential access and collection in security incidents.

Log source

product
windows
category
process_creation

Detection

selection:
    - Product|contains: 'Mouse Lock'
    - Company|contains: 'Misc314'
    - CommandLine|contains: 'Mouse Lock_'
condition: selection

False positives (as the rule lists them)

  • Legitimate uses of Mouse Lock software

Tags

  • attack.credential-access
  • attack.collection
  • attack.t1056.002

MITRE ATT&CK ids this rule names

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_pua_mouselock_execution.yml

Sources and licences

  • SigmaHQ

    "PUA - Mouse Lock Execution" by Cian Heasley (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_pua_mouselock_execution.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: PUA - Mouse Lock Execution",
entity page, dataset version ref-f23e0a21c478, updated 2023-02-21T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/c9192ad9-75e5-43eb-8647-82a0a5b493e3 (accessed 2026-11-03).
Underlying source: SigmaHQ rule c9192ad9-75e5-43eb-8647-82a0a5b493e3, 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.