Office Macros Warning Disabled

calendar Oct 23, 2025 · attack.persistence attack.defense-evasion attack.t1112  ·
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Detects registry changes to Microsoft Office "VBAWarning" to a value of "1" which enables the execution of all macros, whether signed or unsigned.

Sigma rule (View on GitHub)

 1title: Office Macros Warning Disabled
 2id: 91239011-fe3c-4b54-9f24-15c86bb65913
 3related:
 4    - id: a166f74e-bf44-409d-b9ba-ea4b2dd8b3cd
 5      type: obsolete
 6status: test
 7description: Detects registry changes to Microsoft Office "VBAWarning" to a value of "1" which enables the execution of all macros, whether signed or unsigned.
 8references:
 9    - https://twitter.com/inversecos/status/1494174785621819397
10    - https://www.mcafee.com/blogs/other-blogs/mcafee-labs/zloader-with-a-new-infection-technique/
11    - https://securelist.com/scarcruft-surveilling-north-korean-defectors-and-human-rights-activists/105074/
12author: Trent Liffick (@tliffick), Nasreddine Bencherchali (Nextron Systems)
13date: 2020-05-22
14modified: 2024-03-19
15tags:
16    - attack.persistence
17    - attack.defense-evasion
18    - attack.t1112
19logsource:
20    category: registry_set
21    product: windows
22detection:
23    selection:
24        TargetObject|endswith: '\Security\VBAWarnings'
25        Details: 'DWORD (0x00000001)'
26    condition: selection
27falsepositives:
28    - Unlikely
29level: high

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