Suspicious Windows Defender Real-Time Protection Failure/Restart (via windefend)

This rule detects issues with Windows Defender Real-Time Protection features

SigmamediumWindowsv1
sigma
title: Suspicious Windows Defender Real-Time Protection Failure/Restart (via windefend)
id: 19113b89-d9ee-58fa-878b-5bb10e3b05ff
status: stable
description: This rule detects issues with Windows Defender Real-Time Protection features
references:
    - https://attack.mitre.org/techniques/T1685/
    - Internal Research
    - https://www.microsoft.com/en-us/security/blog/2023/04/11/guidance-for-investigating-attacks-using-cve-2022-21894-the-blacklotus-campaign/
    - https://gist.github.com/nasbench/33732d6705cbdc712fae356f07666346
author: Huntrule Team
date: 2026-06-25
tags:
    - attack.defense-impairment
    - attack.t1685
logsource:
    product: windows
    service: windefend
detection:
    selection:
        EventID:
            - 3002
            - 3007
    filter_optional_network_inspection:
        Feature_Name: '%%886'
        Reason:
            - '%%892'
            - '%%858'
    condition: selection and not 1 of filter_optional_*
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.