Possible ETW Logging Disabled For rpcrt4.dll (via registry_set)

title: Possible ETW Logging Disabled For rpcrt4.dll (via registry_set)
id: 1322b1db-285c-5503-aff6-ef1f12be785d
status: stable
description: This rule detects changes to the "ExtErrorInformation" key to disable ETW logging for rpcrt4.dll
references:
    - https://attack.mitre.org/techniques/T1685/
    - https://attack.mitre.org/techniques/T1112/
    - http://redplait.blogspot.com/2020/07/whats-wrong-with-etw.html
author: Huntrule Team
date: 2026-01-31
tags:
    - attack.persistence
    - attack.defense-impairment
    - attack.t1112
    - attack.t1685
logsource:
    product: windows
    category: registry_set
detection:
    selection:
        TargetObject|endswith: '\Microsoft\Windows NT\Rpc\ExtErrorInformation'
        Details:
            - 'DWORD (0x00000000)'
            - 'DWORD (0x00000002)'
    condition: selection
falsepositives:
    - Unknown
level: low