Bitlocker Key Retrieval

testmedium
log source: azure · auditlogsauthor Michael Epping, '@mepples21'date 2022-06-28
01

description

What this is, in brief.

Monitor and alert for Bitlocker key retrieval.

02

tags

attack.privilege-escalationattack.persistenceattack.initial-accessattack.stealthattack.t1078.004
03

rule source (YAML)

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.stealth
    - attack.t1078.004
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        Category: KeyManagement
        OperationName: Read BitLocker key
    condition: selection
falsepositives:
    - Unknown
level: medium
04

detects techniques (1)

ATT&CK techniques this enables or maps to.

05

references

External citations — patches, advisories, analysis.