Open redirect: giving.lluh.org

calendar May 23, 2025  ยท
Share on: linkedin copy

Message contains use of the giving.lluh.org redirect. This redirection has been abused by threat actors in the wild.

Sublime rule (View on GitHub)

 1name: "Open redirect: giving.lluh.org"
 2description: "Message contains use of the giving.lluh.org redirect. This redirection has been abused by threat actors in the wild."
 3type: "rule"
 4severity: "medium"
 5source: |
 6  type.inbound
 7  and any(body.links,
 8          .href_url.domain.domain == "giving.lluh.org"
 9          and .href_url.path =~ "/site/UserLogin"
10          and strings.icontains(.href_url.query_params, 'nexturl=')
11  )
12  
13  // negate highly trusted sender domains unless they fail DMARC authentication
14  and (
15    (
16      sender.email.domain.root_domain in $high_trust_sender_root_domains
17      and not headers.auth_summary.dmarc.pass
18    )
19    or sender.email.domain.root_domain not in $high_trust_sender_root_domains
20  )  
21
22attack_types:
23  - "Credential Phishing"
24tactics_and_techniques:
25  - "Evasion"
26  - "Open redirect"
27  - "Social engineering"
28detection_methods:
29  - "Content analysis"
30  - "Header analysis"
31  - "Sender analysis"
32  - "URL analysis"
33id: "a2bf1099-132b-51bf-a36a-f2773788b5e5"
to-top