Potential Persistence Via Netsh Helper DLL - Registry

Detects changes to the Netsh registry key to add a new DLL value. This change might be an indication of a potential persistence attempt by adding a malicious Netsh helper

Sigma rule (View on GitHub)

 1title: Potential Persistence Via Netsh Helper DLL - Registry
 2id: c90362e0-2df3-4e61-94fe-b37615814cb1
 3related:
 4    - id: 56321594-9087-49d9-bf10-524fe8479452
 5      type: similar
 6    - id: e7b18879-676e-4a0e-ae18-27039185a8e7
 7      type: similar
 8status: experimental
 9description: |
10        Detects changes to the Netsh registry key to add a new DLL value. This change might be an indication of a potential persistence attempt by adding a malicious Netsh helper
11references:
12    - https://www.ired.team/offensive-security/persistence/t1128-netsh-helper-dll
13    - https://pentestlab.blog/2019/10/29/persistence-netsh-helper-dll/
14author: Anish Bogati
15date: 2023/11/28
16tags:
17    - attack.persistence
18    - attack.t1546.007
19logsource:
20    category: registry_set
21    product: windows
22detection:
23    selection:
24        TargetObject|contains: '\SOFTWARE\Microsoft\NetSh'
25        Details|contains: '.dll'
26    condition: selection
27falsepositives:
28    - Legitimate helper added by different programs and the OS
29level: medium

References

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