2019-10-14 15:45:25 +00:00
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title: Suspicious Code Page Switch
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2019-11-12 22:12:27 +00:00
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id: c7942406-33dd-4377-a564-0f62db0593a3
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2019-10-14 15:45:25 +00:00
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status: experimental
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description: Detects a code page switch in command line or batch scripts to a rare language
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2020-11-28 11:42:27 +00:00
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author: Florian Roth, Jonhnathan Ribeiro, oscd.community
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2019-10-14 15:45:25 +00:00
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date: 2019/10/14
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2020-11-28 11:42:27 +00:00
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modified: 2020/11/28
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2019-10-14 15:45:25 +00:00
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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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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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2020-11-28 11:42:27 +00:00
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Image|endswith: '\chcp.com'
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2020-11-20 05:27:58 +00:00
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CommandLine|endswith:
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2020-11-28 11:42:27 +00:00
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- ' 936' # Chinese
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2020-11-20 05:27:58 +00:00
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# - ' 1256' # Arabic
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2020-11-28 11:42:27 +00:00
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- ' 1258' # Vietnamese
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2020-11-20 05:27:58 +00:00
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# - ' 855' # Russian
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# - ' 866' # Russian
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# - ' 864' # Arabic
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2019-10-14 15:45:25 +00:00
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condition: selection
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fields:
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- ParentCommandLine
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falsepositives:
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2019-10-14 15:50:48 +00:00
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- "Administrative activity (adjust code pages according to your organisation's region)"
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2019-10-14 15:45:25 +00:00
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level: medium
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