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 not (
23    sender.email.domain.root_domain in $high_trust_sender_root_domains
24    and coalesce(headers.auth_summary.dmarc.pass, false)
25  )  
26attack_types:
27  - "Credential Phishing"
28  - "Malware/Ransomware"
29tactics_and_techniques:
30  - "Open redirect"
31detection_methods:
32  - "Sender analysis"
33  - "URL analysis"
34id: "af485a39-4766-5c89-9498-00f618b90e69"