Nasreddine Bencherchali
598d29f811
chore: change tags, date, modified fields to comply with v2 of the Sigma spec. chore: update the related type from `obsoletes` to `obsolete`. chore: update local json schema to the latest version.
29 lines
931 B
YAML
29 lines
931 B
YAML
title: Suspicious Windows Strings In URI
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id: 9f6a34b4-2688-4eb7-a7f5-e39fef573d0e
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status: test
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description: Detects suspicious Windows strings in URI which could indicate possible exfiltration or webshell communication
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references:
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- https://thedfirreport.com/2022/06/06/will-the-real-msiexec-please-stand-up-exploit-leads-to-data-exfiltration/
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author: Nasreddine Bencherchali (Nextron Systems)
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date: 2022-06-06
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modified: 2023-01-02
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tags:
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- attack.persistence
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- attack.exfiltration
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- attack.t1505.003
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logsource:
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category: webserver
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detection:
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selection:
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cs-uri-query|contains:
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- '=C:/Users'
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- '=C:/Program%20Files'
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- '=C:/Windows'
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- '=C%3A%5CUsers'
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- '=C%3A%5CProgram%20Files'
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- '=C%3A%5CWindows'
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condition: selection
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falsepositives:
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- Legitimate application and websites that use windows paths in their URL
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level: high
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