Suspicious Bitlocker Key Retrieval (via auditlogs)

title: Suspicious Bitlocker Key Retrieval (via auditlogs)
id: 89f8f202-d3a6-5892-9203-804ea93692df
status: stable
description: This rule detects Bitlocker key retrieval.
references:
    - https://attack.mitre.org/techniques/T1078/004/
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-devices#bitlocker-key-retrieval
author: Huntrule Team
date: 2026-07-11
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.initial-access
    - attack.stealth
    - attack.t1078.004
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        Category: KeyManagement
        OperationName: Read BitLocker key
    condition: selection
falsepositives:
    - Unknown
level: medium