Suspicious Certificate Private Key Acquired (via capi2)

title: Suspicious Certificate Private Key Acquired (via capi2)
id: a59be661-7a87-57bd-a454-d6d48a028548
status: stable
description: This rule detects when an application acquires a certificate private key
references:
    - https://attack.mitre.org/techniques/T1649/
    - https://www.splunk.com/en_us/blog/security/breaking-the-chain-defending-against-certificate-services-abuse.html
author: Huntrule Team
date: 2026-03-26
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
    condition: selection
falsepositives:
    - Unknown
level: medium