Potential Signing Bypass Via Windows Developer Features

calendar Dec 1, 2023 · attack.defense_evasion  ·
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Detects when a user enable developer features such as "Developer Mode" or "Application Sideloading". Which allows the user to install untrusted packages.

Sigma rule (View on GitHub)

 1title: Potential Signing Bypass Via Windows Developer Features
 2id: a383dec4-deec-4e6e-913b-ed9249670848
 3related:
 4    - id: b110ebaf-697f-4da1-afd5-b536fa27a2c1
 5      type: similar
 6status: test
 7description: Detects when a user enable developer features such as "Developer Mode" or "Application Sideloading". Which allows the user to install untrusted packages.
 8references:
 9    - Internal Research
10    - https://www.sentinelone.com/labs/inside-malicious-windows-apps-for-malware-deployment/
11author: Nasreddine Bencherchali (Nextron Systems)
12date: 2023/01/11
13tags:
14    - attack.defense_evasion
15logsource:
16    category: process_creation
17    product: windows
18detection:
19    selection_img:
20        - Image|endswith: '\SystemSettingsAdminFlows.exe'
21        - OriginalFileName: 'SystemSettingsAdminFlows.EXE'
22    selection_flag:
23        CommandLine|contains: 'TurnOnDeveloperFeatures'
24    selection_options:
25        CommandLine|contains:
26            - 'DeveloperUnlock'
27            - 'EnableSideloading'
28    condition: all of selection_*
29falsepositives:
30    - Unknown
31level: high

References

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