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28 lines
736 B
YAML
28 lines
736 B
YAML
title: Webshell Detection by Keyword
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id: 7ff9db12-1b94-4a79-ba68-a2402c5d6729
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status: experimental
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description: Detects webshells that use GET requests by keyword searches in URL strings
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author: Florian Roth
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date: 2017/02/19
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modified: 2020/09/03
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logsource:
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category: webserver
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detection:
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keywords:
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- =whoami
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- =net%20user
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- =cmd%20/c%20
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condition: keywords
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fields:
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- client_ip
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- vhost
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- url
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- response
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falsepositives:
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- Web sites like wikis with articles on os commands and pages that include the os commands in the URLs
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- User searches in search boxes of the respective website
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level: high
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tags:
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- attack.persistence
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- attack.t1100 # an old one
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- attack.t1505.003 |