33 lines
916 B
YAML
33 lines
916 B
YAML
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title: Certutil Encode
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author: Florian Roth, Jonhnathan Ribeiro, oscd.community
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date: 2019/02/24
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description: Detects suspicious a certutil command that used to encode files, which
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is sometimes used for data exfiltration
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_2:
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Image: '*\certutil.exe'
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SELECTION_3:
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CommandLine: '*-f*'
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SELECTION_4:
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CommandLine: '*-encode*'
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condition: (SELECTION_1 and SELECTION_2 and SELECTION_3 and SELECTION_4)
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falsepositives:
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- unknown
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id: e62a9f0c-ca1e-46b2-85d5-a6da77f86d1a
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level: medium
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logsource:
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category: process_creation
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product: windows
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modified: 2020/11/28
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references:
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- https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/certutil
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- https://unit42.paloaltonetworks.com/new-babyshark-malware-targets-u-s-national-security-think-tanks/
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status: experimental
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tags:
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- attack.defense_evasion
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- attack.t1027
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ruletype: SIGMA
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