Windows Defender Real-Time Protection Failure/Restart

Detects issues with Windows Defender Real-Time Protection features

Sigma rule (View on GitHub)

 1title: Windows Defender Real-Time Protection Failure/Restart
 2id: dd80db93-6ec2-4f4c-a017-ad40da6ffe81
 3status: stable
 4description: Detects issues with Windows Defender Real-Time Protection features
 5references:
 6    - Internal Research
 7    - https://www.microsoft.com/en-us/security/blog/2023/04/11/guidance-for-investigating-attacks-using-cve-2022-21894-the-blacklotus-campaign/
 8    - https://gist.github.com/nasbench/33732d6705cbdc712fae356f07666346 # Contains the list of Feature Names (use for filtering purposes)
 9author: Nasreddine Bencherchali (Nextron Systems), Christopher Peacock '@securepeacock' (Update)
10date: 2023-03-28
11modified: 2023-05-05
12tags:
13    - attack.defense-evasion
14    - attack.t1562.001
15logsource:
16    product: windows
17    service: windefend
18detection:
19    selection:
20        EventID:
21            - 3002 # Real-Time Protection feature has encountered an error and failed
22            - 3007 # Real-time Protection feature has restarted
23    filter_optional_network_inspection:
24        Feature_Name: '%%886' # Network Inspection System
25        Reason:
26            - '%%892' # The system is missing updates that are required for running Network Inspection System.  Install the required updates and restart the device.
27            - '%%858' # Antimalware security intelligence has stopped functioning for an unknown reason. In some instances, restarting the service may resolve the problem.
28    condition: selection and not 1 of filter_optional_*
29falsepositives:
30    - Some crashes can occur sometimes and the event doesn't provide enough information to tune out these cases. Manual exception is required
31level: medium

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