frack113
32 lines
898 B
YAML
32 lines
898 B
YAML
title: Suspicious Curl Change User Agents
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id: 3286d37a-00fd-41c2-a624-a672dcd34e60
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status: experimental
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description: Detects a suspicious curl process start on Windows with set useragent options
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author: frack113
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references:
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- https://curl.se/docs/manpage.html
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1071.001/T1071.001.md#atomic-test-2---malicious-user-agents---cmd
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date: 2022/01/23
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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_curl:
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- Image|endswith: '\curl.exe'
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- Product: 'The curl executable'
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selection_opt:
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CommandLine|contains:
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- ' -A '
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- ' --user-agent '
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condition: all of selection_*
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fields:
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- CommandLine
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- ParentCommandLine
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falsepositives:
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- Scripts created by developers and admins
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- Administrative activity
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level: medium
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tags:
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- attack.command_and_control
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- attack.t1071.001
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