Open redirect: shoppermeet.net

 1name: "Open redirect: shoppermeet.net"
 2description: |
 3    Message contains use of the shoppermeet.net redirect. This has been exploited in the wild for phishing.
 4type: "rule"
 5severity: "medium"
 6source: |
 7  type.inbound
 8  and any(body.links,
 9          .href_url.domain.domain == "link.shoppermeet.net"
10          and strings.icontains(.href_url.path, '/deep-link')
11          and strings.icontains(.href_url.query_params, 'propertyid=')
12          and strings.icontains(.href_url.query_params, 'publisherkey=')
13          and strings.icontains(.href_url.query_params, 'url=')
14          and not regex.icontains(.href_url.query_params,
15                                  'url=(?:https?(?:%3a|:))?(?:%2f|\/){2}[^&]*shoppermeet\.net(?:\&|\/|$|%2f)'
16          )
17  )
18  and not sender.email.domain.root_domain == "shoppermeet.net"
19  
20  // negate highly trusted sender domains unless they fail DMARC authentication
21  and not (
22    sender.email.domain.root_domain in $high_trust_sender_root_domains
23    and coalesce(headers.auth_summary.dmarc.pass, false)
24  )  
25attack_types:
26  - "Credential Phishing"
27  - "Malware/Ransomware"
28tactics_and_techniques:
29  - "Open redirect"
30detection_methods:
31  - "Sender analysis"
32  - "URL analysis"
33id: "fe105c91-2ba8-55a8-9891-2dd539355624"