HackTool - Empire UserAgent URI Combo

Detects user agent and URI paths used by empire agents

Sigma rule (View on GitHub)

 1title: HackTool - Empire UserAgent URI Combo
 2id: b923f7d6-ac89-4a50-a71a-89fb846b4aa8
 3status: test
 4description: Detects user agent and URI paths used by empire agents
 5references:
 6    - https://github.com/BC-SECURITY/Empire
 7author: Florian Roth (Nextron Systems)
 8date: 2020-07-13
 9modified: 2024-02-26
10tags:
11    - attack.defense-evasion
12    - attack.command-and-control
13    - attack.t1071.001
14logsource:
15    category: proxy
16detection:
17    selection:
18        c-useragent: 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'
19        cs-uri:
20            - '/admin/get.php'
21            - '/news.php'
22            - '/login/process.php'
23        cs-method: 'POST'
24    condition: selection
25falsepositives:
26    - Valid requests with this exact user agent to server scripts of the defined names
27level: high

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