Open Redirect: IndiaTimes

 1name: "Open Redirect: IndiaTimes"
 2description: |
 3    Message contains use of the IndiaTimes open redirect. This has been exploited in the wild.
 4references:
 5  - "https://www.strongestlayer.ai/India-Times-Hosting-Redirect-to-Newly-Discovered-Microsoft-Phishing-Site"
 6type: "rule"
 7severity: "medium"
 8source: |
 9  type.inbound
10  and any(body.links,
11      .href_url.domain.root_domain == "indiatimes.com"
12      and strings.icontains(.href_url.path, '/etl.php')
13      and strings.icontains(.href_url.query_params, 'url=')
14      // don't match on redirects to indiatimes.com
15      and not regex.icontains(.href_url.query_params, 'url=[^\&]+\.indiatimes\.com\b')
16  )
17  and (
18    not profile.by_sender().solicited
19    or (
20      profile.by_sender().any_messages_malicious_or_spam
21      and not profile.by_sender().any_false_positives
22    )
23  )
24
25  // negate highly trusted sender domains unless they fail DMARC authentication
26  and (
27    (
28      sender.email.domain.root_domain in $high_trust_sender_root_domains
29      and not headers.auth_summary.dmarc.pass
30    )
31    or sender.email.domain.root_domain not in $high_trust_sender_root_domains
32  )  
33attack_types:
34  - "Credential Phishing"
35  - "Malware/Ransomware"
36tactics_and_techniques:
37  - "Open redirect"
38detection_methods:
39  - "Sender analysis"
40  - "URL analysis"
41id: "d5e2ca78-ef3a-54f1-9b24-3efca8c8e8ca"