Registry Tampering Of Internal Tools Settings

Detects registry modifications that tamper with internal Windows tools settings, commonly used by malware to disable security features or system tools

Sigma rule (View on GitHub)

 1title: Registry Tampering Of Internal Tools Settings
 2id: ccc946a3-f65a-432a-bb6f-efc6acc1fd27
 3related:
 4    - id: e2482f8d-3443-4237-b906-cc145d87a076
 5      type: similar
 6status: experimental
 7description: Detects registry modifications that tamper with internal Windows tools settings, commonly used by malware to disable security features or system tools
 8references:
 9    - https://bazaar.abuse.ch/sample/7bde840c7e8c36dce4c3bac937bcf39f36a6f118001b406bfbbc25451ce44fb4/
10    - https://blogs.vmware.com/security/2022/11/batloader-the-evasive-downloader-malware.html
11    - https://www.mandiant.com/resources/unc2165-shifts-to-evade-sanctions
12    - https://www.sentinelone.com/blog/cybervolk-returns-flawed-volklocker-brings-new-features-with-growing-pains/
13author: Swachchhanda Shrawan Poudel (Nextron Systems)
14date: 2026-10-18
15tags:
16    - attack.persistence
17    - attack.defense-impairment
18    - attack.t1112
19logsource:
20    category: process_creation
21    product: windows
22detection:
23    selection_reg_img:
24        - Image|endswith: '\reg.exe'
25        - OriginalFileName: 'reg.exe'
26    selection_reg_cli:
27        CommandLine|contains: ' add '
28    selection_currentversion_explorer_system_root:
29        CommandLine|contains:
30            - 'SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer'
31            - 'SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System'
32            - 'SOFTWARE\Policies\Microsoft\Windows\Explorer'
33            - 'SOFTWARE\Policies\Microsoft\Windows\System'
34    selection_currentversion_explorer_system_key:
35        CommandLine|contains:
36            - 'ConsentPromptBehaviorAdmin'
37            - 'DisableChangePassword'
38            - 'DisableCMD'
39            - 'DisableLockWorkstation'
40            - 'DisableNotificationCenter'
41            - 'DisableRegistryTools'
42            - 'DisableTaskmgr'
43            - 'HideSCAHealth'
44            - 'HideSCANetwork'
45            - 'HideSCAVolume'
46            - 'InactivityTimeoutSecs'
47            - 'NoClose'
48            - 'NoControlPanel'
49            - 'NoDesktop'
50            - 'NoDispBackgroundPage'
51            - 'NoDispCPL'
52            - 'NoDrives'
53            - 'NoFileMenu'
54            - 'NoFind'
55            - 'NoLogOff'
56            - 'NoPropertiesMyDocuments'
57            - 'NoRun'
58            - 'NoSetTaskbar'
59            - 'NoTrayContextMenu'
60            - 'StartMenuLogOff'
61            - 'shutdownwithoutlogon'
62    condition: all of selection_*
63falsepositives:
64    - Legitimate use of reg.exe to change system settings
65level: medium
66simulation:
67    - type: atomic-red-team
68      name: Modify Registry of Current User Profile - cmd
69      technique: T1112
70      atomic_guid: 1324796b-d0f6-455a-b4ae-21ffee6aa6b9
71regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_reg_internal_tools_setting_tampering/info.yml

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