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25 lines
860 B
YAML
25 lines
860 B
YAML
title: Outlook C2 Macro Creation
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id: 8c31f563-f9a7-450c-bfa8-35f8f32f1f61
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status: experimental
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description: Detects the creation of a macro file for Outlook. Goes with win_outlook_c2_registry_key. VbaProject.OTM is explicitly mentioned in T1137. Particularly interesting if both events Registry & File Creation happens at the same time.
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references:
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- https://www.mdsec.co.uk/2020/11/a-fresh-outlook-on-mail-based-persistence/
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author: '@ScoubiMtl'
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tags:
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- attack.persistence
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- attack.command_and_control
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- attack.t1137
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- attack.t1008
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- attack.t1546
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date: 2021/04/05
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logsource:
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category: file_event
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product: windows
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detection:
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selection:
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TargetFilename|endswith: '\Microsoft\Outlook\VbaProject.OTM'
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condition: selection
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falsepositives:
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- User genuinly creates a VB Macro for their email
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level: medium
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