Nasreddine Bencherchali
598d29f811
chore: change tags, date, modified fields to comply with v2 of the Sigma spec. chore: update the related type from `obsoletes` to `obsolete`. chore: update local json schema to the latest version.
25 lines
721 B
YAML
25 lines
721 B
YAML
title: Base64 Encoded PowerShell Command Detected
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id: e32d4572-9826-4738-b651-95fa63747e8a
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status: test
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description: Detects usage of the "FromBase64String" function in the commandline which is used to decode a base64 encoded string
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references:
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- https://gist.github.com/Neo23x0/6af876ee72b51676c82a2db8d2cd3639
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author: Florian Roth (Nextron Systems)
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date: 2020-01-29
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modified: 2023-01-26
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tags:
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- attack.t1027
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- attack.defense-evasion
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- attack.t1140
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- attack.t1059.001
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logsource:
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category: process_creation
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product: windows
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detection:
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selection:
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CommandLine|contains: '::FromBase64String('
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condition: selection
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falsepositives:
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- Administrative script libraries
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level: high
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