sigmamediumHunting

Bitlocker Key Retrieval

Monitor and alert for Bitlocker key retrieval.

MITRE ATT&CK

privilege-escalationpersistenceinitial-accessdefense-evasion

Detection Query

selection:
  Category: KeyManagement
  OperationName: Read BitLocker key
condition: selection

Author

Michael Epping, '@mepples21'

Created

2022-06-28

Data Sources

azureauditlogs

Platforms

azure

References

https://learn.microsoft.com/en-us/entra/architecture/security-operations-devices#bitlocker-key-retrieval

Tags

attack.privilege-escalationattack.persistenceattack.initial-accessattack.defense-evasionattack.t1078.004

Raw Content

title: Bitlocker Key Retrieval
id: a0413867-daf3-43dd-9245-734b3a787942
status: test
description: Monitor and alert for Bitlocker key retrieval.
references:
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-devices#bitlocker-key-retrieval
author: Michael Epping, '@mepples21'
date: 2022-06-28
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.initial-access
    - attack.defense-evasion
    - attack.t1078.004
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        Category: KeyManagement
        OperationName: Read BitLocker key
    condition: selection
falsepositives:
    - Unknown
level: medium