frack113
44 lines
1.1 KiB
YAML
44 lines
1.1 KiB
YAML
title: Webshell Recon Detection Via CommandLine & Processes
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id: f64e5c19-879c-4bae-b471-6d84c8339677
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status: test
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description: Looking for processes spawned by web server components that indicate reconnaissance by popular public domain webshells for whether perl, python or wget are installed.
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author: Cian Heasley
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references:
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- https://ragged-lab.blogspot.com/2020/07/webshells-automating-reconnaissance.html
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date: 2020/07/22
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modified: 2021/11/27
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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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- ParentImage|contains:
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- '\apache'
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- '\tomcat'
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- ParentImage|endswith:
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- '\w3wp.exe'
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- '\php-cgi.exe'
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- '\nginx.exe'
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- '\httpd.exe'
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selection2:
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Image|endswith:
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- '\cmd.exe'
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CommandLine|contains:
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- 'perl --help'
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- 'python --help'
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- 'wget --help'
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- 'perl -h'
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condition: selection and selection2
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fields:
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- Image
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- CommandLine
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- ParentCommandLine
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falsepositives:
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- unknown
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level: high
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tags:
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- attack.persistence
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- attack.t1505.003
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- attack.privilege_escalation # an old one
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- attack.t1100 # an old one
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