Suspicious Office Application Startup - Office Test (via registry_event)

title: Suspicious Office Application Startup - Office Test (via registry_event)
id: fc6209b8-68d1-54fa-863d-989dfe36d1ef
status: stable
description: This rule detects the addition of office test registry that enables a user to specify an arbitrary DLL that will be executed every time an Office application is started
references:
    - https://attack.mitre.org/techniques/T1137/002/
    - https://unit42.paloaltonetworks.com/unit42-technical-walkthrough-office-test-persistence-method-used-in-recent-sofacy-attacks/
author: Huntrule Team
date: 2026-03-11
tags:
    - attack.persistence
    - attack.t1137.002
logsource:
    category: registry_event
    product: windows
detection:
    selection:
        TargetObject|contains: '\Software\Microsoft\Office test\Special\Perf'
    condition: selection
falsepositives:
    - Unknown
level: medium