Suspicious Activate Suppression of Windows Security Center Notifications (via registry_set)

title: Suspicious Activate Suppression of Windows Security Center Notifications (via registry_set)
id: 9acfbbc3-fa9a-55ca-aa15-6978ff1869f6
status: stable
description: This rule detects set Notification_Suppress to 1 to disable the Windows security center notification
references:
    - https://attack.mitre.org/techniques/T1112/
    - https://github.com/redcanaryco/atomic-red-team/blob/40b77d63808dd4f4eafb83949805636735a1fd15/atomics/T1112/T1112.md
author: Huntrule Team
date: 2026-02-09
tags:
    - attack.persistence
    - attack.defense-impairment
    - attack.t1112
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|endswith: 'SOFTWARE\Policies\Microsoft\Windows Defender\UX Configuration\Notification_Suppress'
        Details: DWORD (0x00000001)
    condition: selection
falsepositives:
    - Unknown
level: medium