Open redirect: eodcnetworkdirect.com

 1name: "Open redirect: eodcnetworkdirect.com"
 2description: |
 3    Message contains use of the eodcnetworkdirect.com 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.domain == "in.eodcnetworkdirect.com"
10          and strings.icontains(.href_url.query_params, '&url=')
11          and not regex.icontains(.href_url.domain.domain,
12                                  '&url=[^\&]*eodcnetwork(?:direct\.com|\.org)(?:\&|\/|$)'
13          )
14  )
15  and not sender.email.domain.root_domain in (
16    "eodcnetworkdirect.com",
17    "eodcnetwork.org"
18  )
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: "ef31283e-69ab-5883-9d56-fd04df135347"