frack113
0f3eefdc9c
Co-authored-by: Nasreddine Bencherchali <8741929+nasbench@users.noreply.github.com>
27 lines
855 B
YAML
27 lines
855 B
YAML
title: PowerShell Downgrade Attack - PowerShell
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id: 6331d09b-4785-4c13-980f-f96661356249
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status: experimental
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description: Detects PowerShell downgrade attack by comparing the host versions with the actually used engine version 2.0
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references:
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- http://www.leeholmes.com/blog/2017/03/17/detecting-and-preventing-powershell-downgrade-attacks/
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author: Florian Roth (rule), Lee Holmes (idea), Harish Segar (improvements)
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date: 2017/03/22
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modified: 2022/12/02
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tags:
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- attack.defense_evasion
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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_classic_start
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definition: fields have to be extract from event
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detection:
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selection:
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EngineVersion|startswith: '2.'
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filter:
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HostVersion|startswith: '2.'
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condition: selection and not filter
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falsepositives:
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- Unknown
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level: medium
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