Open redirect: magneticmarketing.com

 1name: "Open redirect: magneticmarketing.com"
 2description: |
 3    Message contains use of the magneticmarketing.com open redirect. This has been exploited in the wild.
 4type: "rule"
 5severity: "medium"
 6source: |
 7  type.inbound
 8  and any(body.links,
 9          .href_url.domain.root_domain == "magneticmarketing.com"
10          and strings.istarts_with(.href_url.path,
11                                   "/_tracking/email_click/broadcast/"
12          )
13          and strings.icontains(.href_url.query_params, 'url=')
14          // negate use of the redirect by magneticmarketing
15          and not regex.icontains(.href_url.query_params,
16                                  'url=[^&]*magneticmarketing\.com'
17          )
18  )
19  and not sender.email.domain.root_domain == "magneticmarketing.com"
20  
21  // negate highly trusted sender domains unless they fail DMARC authentication
22  and (
23    (
24      sender.email.domain.root_domain in $high_trust_sender_root_domains
25      and not headers.auth_summary.dmarc.pass
26    )
27    or sender.email.domain.root_domain not in $high_trust_sender_root_domains
28  )  
29attack_types:
30  - "Credential Phishing"
31  - "Malware/Ransomware"
32tactics_and_techniques:
33  - "Open redirect"
34detection_methods:
35  - "Sender analysis"
36  - "URL analysis"
37id: "af485a39-4766-5c89-9498-00f618b90e69"