Sigma rule: Windows Defender Real-Time Protection Failure/Restart

Rule

Title

Windows Defender Real-Time Protection Failure/Restart

Status

stable

Level

medium

Author

Nasreddine Bencherchali (Nextron Systems), Christopher Peacock '@securepeacock' (Update)

Date

2023-03-28

Modified

2023-05-05

File

rules/windows/builtin/windefend/win_defender_real_time_protection_errors.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects issues with Windows Defender Real-Time Protection features

Log source

product

windows

service

windefend

Detection

selection:
    EventID:
        - 3002 # Real-Time Protection feature has encountered an error and failed
        - 3007 # Real-time Protection feature has restarted
filter_optional_network_inspection:
    Feature_Name: '%%886' # Network Inspection System
    Reason:
        - '%%892' # The system is missing updates that are required for running Network Inspection System.  Install the required updates and restart the device.
        - '%%858' # Antimalware security intelligence has stopped functioning for an unknown reason. In some instances, restarting the service may resolve the problem.
condition: selection and not 1 of filter_optional_*

False positives (as the rule lists them)

• Some crashes can occur sometimes and the event doesn't provide enough information to tune out these cases. Manual exception is required

Tags

• attack.defense-impairment
• attack.t1685

MITRE ATT&CK ids this rule names

• T1685

References

• 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

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/windefend/win_defender_real_time_protection_errors.yml