35 lines
896 B
YAML
35 lines
896 B
YAML
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title: Suspicious Code Page Switch
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ruletype: Sigma
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author: Florian Roth, Jonhnathan Ribeiro, oscd.community
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date: 2019/10/14
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description: Detects a code page switch in command line or batch scripts to a rare
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language
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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: '*\chcp.com'
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SELECTION_3:
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CommandLine:
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- '* 936'
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- '* 1258'
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condition: (SELECTION_1 and SELECTION_2 and SELECTION_3)
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falsepositives:
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- Administrative activity (adjust code pages according to your organisation's region)
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fields:
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- ParentCommandLine
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id: c7942406-33dd-4377-a564-0f62db0593a3
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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/win32/intl/code-page-identifiers
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- https://twitter.com/cglyer/status/1183756892952248325
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status: experimental
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tags:
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- attack.t1036
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- attack.defense_evasion
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