frack113
31 lines
810 B
YAML
31 lines
810 B
YAML
title: PowerShell ShellCode
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id: 16b37b70-6fcf-4814-a092-c36bd3aafcbd
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status: experimental
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description: Detects Base64 encoded Shellcode
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references:
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- https://twitter.com/cyb3rops/status/1063072865992523776
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author: David Ledbetter (shellcode), Florian Roth (rule)
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date: 2018/11/17
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modified: 2021/10/16
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tags:
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- attack.defense_evasion
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- attack.privilege_escalation
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- attack.t1055
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- attack.execution
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- attack.t1059.001
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logsource:
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product: windows
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category: ps_script
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definition: Script block logging must be enabled
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detection:
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selection:
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ScriptBlockText|contains: 'AAAAYInlM'
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selection2:
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ScriptBlockText|contains:
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- 'OiCAAAAYInlM'
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- 'OiJAAAAYInlM'
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condition: selection and selection2
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falsepositives:
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- Unknown
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level: high
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