Sigma rule: DPAPI Domain Backup Key Extraction

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-e591df56ce89, updated 2022-02-24T00:00:00.000Z.

Rule

Title
DPAPI Domain Backup Key Extraction
Status
test
Level
high
Author
Roberto Rodriguez @Cyb3rWard0g
Date
2019-06-20
Modified
2022-02-24
File
rules/windows/builtin/security/win_security_dpapi_domain_backupkey_extraction.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects tools extracting LSA secret DPAPI domain backup key from Domain Controllers

Log source

product
windows
service
security

Detection

selection:
    EventID: 4662
    ObjectType: 'SecretObject'
    AccessMask: '0x2'
    ObjectName|contains: 'BCKUPKEY'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.credential-access
  • attack.t1003.004

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_dpapi_domain_backupkey_extraction.yml

Sources and licences

  • SigmaHQ

    "DPAPI Domain Backup Key Extraction" by Roberto Rodriguez @Cyb3rWard0g (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/security/win_security_dpapi_domain_backupkey_extraction.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: DPAPI Domain Backup Key Extraction",
entity page, dataset version ref-e591df56ce89, updated 2022-02-24T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/4ac1f50b-3bd0-4968-902d-868b4647937e (accessed 2026-11-03).
Underlying source: SigmaHQ rule 4ac1f50b-3bd0-4968-902d-868b4647937e, 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.