Bitlocker Key Retrieval

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.defense_evasion
11    - attack.t1078.004
12logsource:
13    product: azure
14    service: auditlogs
15detection:
16    selection:
17        Category: KeyManagement
18        OperationName: Read BitLocker key
19    condition: selection
20falsepositives:
21    - Unknown
22level: medium

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