Bitlocker Key Retrieval

calendar Oct 23, 2025 · attack.privilege-escalation attack.persistence attack.initial-access attack.defense-evasion attack.t1078.004  ·
Share on: linkedin copy

Monitor and alert for Bitlocker key retrieval.

Sigma rule (View on GitHub)

 1title: Bitlocker Key Retrieval
 2id: a0413867-daf3-43dd-9245-734b3a787942
 3status: test
 4description: Monitor and alert for Bitlocker key retrieval.
 5references:
 6    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-devices#bitlocker-key-retrieval
 7author: Michael Epping, '@mepples21'
 8date: 2022-06-28
 9tags:
10    - attack.privilege-escalation
11    - attack.persistence
12    - attack.initial-access
13    - attack.defense-evasion
14    - attack.t1078.004
15logsource:
16    product: azure
17    service: auditlogs
18detection:
19    selection:
20        Category: KeyManagement
21        OperationName: Read BitLocker key
22    condition: selection
23falsepositives:
24    - Unknown
25level: medium

References

Related rules

to-top