Open redirect: isadatalab.com

 1name: "Open redirect: isadatalab.com"
 2description: |
 3    Message contains use of the isadatalab.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 == "isadatalab.com"
10          and strings.icontains(.href_url.path, '/redirect')
11          and regex.icontains(.href_url.query_params, '(?:^|&)url=')
12  )
13  and sender.email.domain.root_domain != 'bestdeals.today'
14  and headers.return_path.domain.root_domain != "bestdeals.today"
15  
16  // negate highly trusted sender domains unless they fail DMARC authentication
17  and not (
18    sender.email.domain.root_domain in $high_trust_sender_root_domains
19    and coalesce(headers.auth_summary.dmarc.pass, false)
20  )  
21attack_types:
22  - "Credential Phishing"
23  - "Malware/Ransomware"
24tactics_and_techniques:
25  - "Open redirect"
26detection_methods:
27  - "Sender analysis"
28  - "URL analysis"
29id: "344fb612-5685-5fc9-9013-0b43d7064ba1"