DPAPI Domain Backup Key Extraction

Description

Detects tools extracting LSA secret DPAPI domain backup key from Domain Controllers

Query · sigma

selection:
  EventID: 4662
  ObjectType: SecretObject
  AccessMask: '0x2'
  ObjectName|contains: BCKUPKEY
condition: selection

Known false positives

  • Unknown
Raw source DPAPI Domain Backup Key Extraction · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: DPAPI Domain Backup Key Extraction
id: 4ac1f50b-3bd0-4968-902d-868b4647937e
status: test
description: Detects tools extracting LSA secret DPAPI domain backup key from Domain Controllers
references:
    - https://threathunterplaybook.com/hunts/windows/190620-DomainDPAPIBackupKeyExtraction/notebook.html
author: Roberto Rodriguez @Cyb3rWard0g
date: 2019-06-20
modified: 2022-02-24
tags:
    - attack.credential-access
    - attack.t1003.004
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4662
        ObjectType: 'SecretObject'
        AccessMask: '0x2'
        ObjectName|contains: 'BCKUPKEY'
    condition: selection
falsepositives:
    - Unknown
level: high

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