title: Certificate Private Key Acquired
id: e2b5163d-7deb-4566-9af3-40afea6858c3
status: test
description: Detects when an application acquires a certificate private key
references:
- https://www.splunk.com/en_us/blog/security/breaking-the-chain-defending-against-certificate-services-abuse.html
author: Zach Mathis
date: 2023-05-13
tags:
- attack.credential-access
- attack.t1649
logsource:
product: windows
service: capi2
definition: 'Requirements: The CAPI2 Operational log needs to be enabled'
detection:
selection:
EventID: 70 # Acquire Certificate Private Key
condition: selection
falsepositives:
- Legitimate application requesting certificate exports will trigger this. Apply additional filters as needed
level: medium