Sigma rule: SysKey Registry Keys Access

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-a57fa869ebec, updated 2021-11-27T00:00:00.000Z.

Rule

Title
SysKey Registry Keys Access
Status
test
Level
high
Author
Roberto Rodriguez @Cyb3rWard0g
Date
2019-08-12
Modified
2021-11-27
File
rules/windows/builtin/security/win_security_syskey_registry_access.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects handle requests and access operations to specific registry keys to calculate the SysKey

Log source

product
windows
service
security

Detection

selection:
    EventID:
        - 4656
        - 4663
    ObjectType: 'key'
    ObjectName|endswith:
        - 'lsa\JD'
        - 'lsa\GBG'
        - 'lsa\Skew1'
        - 'lsa\Data'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.discovery
  • attack.t1012

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/builtin/security/win_security_syskey_registry_access.yml

Sources and licences

  • SigmaHQ

    "SysKey Registry Keys Access" by Roberto Rodriguez @Cyb3rWard0g (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/security/win_security_syskey_registry_access.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: SysKey Registry Keys Access",
entity page, dataset version ref-a57fa869ebec, updated 2021-11-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/9a4ff3b8-6187-4fd2-8e8b-e0eae1129495 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 9a4ff3b8-6187-4fd2-8e8b-e0eae1129495, 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.