Spam: Campaign with excessive display-text and keywords found

calendar Oct 4, 2023  ยท
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Detects affiliate marketing spam where any link contains display-text greater than 3000 chars and specific values found.

Sublime rule (View on GitHub)

 1name: "Spam: Campaign with excessive display-text and keywords found"
 2description: |
 3    Detects affiliate marketing spam where any link contains display-text greater than 3000 chars and specific values found. 
 4references:
 5  - "https://playground.sublimesecurity.com?id=aa90e106-fa06-43f2-aa85-50d69591e073"
 6type: "rule"
 7severity: "low"
 8source: |
 9  type.inbound
10  and length(body.links) > 0
11  and any(body.links, length(.display_text) > 3000)
12  and any(body.links, regex.icontains(.display_text, '(\bPassword:)', 'Hi.{0,5}Welcome\b'))
13  and (
14    profile.by_sender().prevalence in ("new", "outlier")
15    or (
16      profile.by_sender().any_messages_malicious_or_spam
17      and not profile.by_sender().any_false_positives
18    )
19  )  
20attack_types:
21  - "Spam"
22detection_methods:
23  - "Content analysis"
24id: "140e46a1-c8a6-530a-ad88-21b7e4b4b02f"
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