Potential Windows Defender Tampering Via Wmic.EXE

Detects potential tampering with Windows Defender settings such as adding exclusion using wmic

Sigma rule (View on GitHub)

 1title: Potential Windows Defender Tampering Via Wmic.EXE
 2id: 51cbac1e-eee3-4a90-b1b7-358efb81fa0a
 3status: test
 4description: Detects potential tampering with Windows Defender settings such as adding exclusion using wmic
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/5c1e6f1b4fafd01c8d1ece85f510160fc1275fbf/atomics/T1562.001/T1562.001.md
 7    - https://www.bleepingcomputer.com/news/security/gootkit-malware-bypasses-windows-defender-by-setting-path-exclusions/
 8    - https://www.bleepingcomputer.com/news/security/iobit-forums-hacked-to-spread-ransomware-to-its-members/
 9author: frack113
10date: 2022-12-11
11modified: 2023-02-14
12tags:
13    - attack.credential-access
14    - attack.t1546.008
15logsource:
16    product: windows
17    category: process_creation
18detection:
19    selection_img:
20        - OriginalFileName: 'wmic.exe'
21        - Image|endswith: '\WMIC.exe'
22    selection_cli:
23        CommandLine|contains: '/Namespace:\\\\root\\Microsoft\\Windows\\Defender'
24    condition: all of selection_*
25falsepositives:
26    - Unknown
27level: high

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