Open redirect: eodcnetworkdirect.com

name: "Open redirect: eodcnetworkdirect.com"
description: |
  Message contains use of the eodcnetworkdirect.com redirect. This has been exploited in the wild.
type: "rule"
severity: "medium"
source: |
  type.inbound
  and any(body.links,
          .href_url.domain.domain == "in.eodcnetworkdirect.com"
          and strings.icontains(.href_url.query_params, '&url=')
          and not regex.icontains(.href_url.domain.domain,
                                  '&url=[^\&]*eodcnetwork(?:direct\.com|\.org)(?:\&|\/|$)'
          )
  )
  and not sender.email.domain.root_domain in (
    "eodcnetworkdirect.com",
    "eodcnetwork.org"
  )
  
  // negate highly trusted sender domains unless they fail DMARC authentication
  and (
    (
      sender.email.domain.root_domain in $high_trust_sender_root_domains
      and not headers.auth_summary.dmarc.pass
    )
    or sender.email.domain.root_domain not in $high_trust_sender_root_domains
  )
attack_types:
  - "Credential Phishing"
  - "Malware/Ransomware"
tactics_and_techniques:
  - "Open redirect"
detection_methods:
  - "Sender analysis"
  - "URL analysis"
id: "ef31283e-69ab-5883-9d56-fd04df135347"