Nasreddine Bencherchali
7da6ac6654
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
39 lines
1.3 KiB
YAML
39 lines
1.3 KiB
YAML
title: File Download Via Curl.EXE
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id: 9a517fca-4ba3-4629-9278-a68694697b81
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related:
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- id: bbeaed61-1990-4773-bf57-b81dbad7db2d # Basic curl execution
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type: derived
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- id: e218595b-bbe7-4ee5-8a96-f32a24ad3468 # Suspicious curl execution
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type: derived
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status: experimental
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description: Detects file download using curl.exe
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references:
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- https://web.archive.org/web/20200128160046/https://twitter.com/reegun21/status/1222093798009790464
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author: Florian Roth (Nextron Systems)
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date: 2022/07/05
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modified: 2023/02/21
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tags:
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- attack.command_and_control
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- attack.t1105
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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_img:
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- Image|endswith: '\curl.exe'
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- Product: 'The curl executable'
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selection_remote:
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CommandLine|contains:
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- ' -O' # covers the alias for --remote-name and --output
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- '--remote-name'
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- '--output'
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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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- The "\Git\usr\bin\sh.exe" process uses the "--output" flag to download a specific file in the temp directory with the pattern "gfw-httpget-xxxxxxxx.txt "
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level: medium
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