Spoofable internal domain with suspicious signals

type.inbound
and sender.email.domain.domain in $org_domains

// doesn't match an org display name (generic)
// we could make this more generic later
and sender.display_name not in $org_display_names
and any(headers.hops,

        // find the hop Authentication-results for the org domain
        .authentication_results.dmarc_details.from.domain in $org_domains

        // internal domain is spoofable
        and .authentication_results.dmarc == "none"
        and .authentication_results.spf == "none"
        and .authentication_results.compauth.verdict not in ("pass", "softpass")
)
and 3 of (
  (
    // low reputation / suspicious link
    any(body.links,
        .href_url.domain.root_domain not in $org_domains
        and (
          .href_url.domain.root_domain not in $tranco_1m
          or .href_url.domain.domain in $free_file_hosts
          or .href_url.domain.root_domain in $free_file_hosts
          or .href_url.domain.root_domain in $free_subdomain_hosts
          or .href_url.domain.domain in $url_shorteners
        )
    )
  ),
  (
    // sender domain matches no body domains
    length(body.links) > 0
    and all(body.links,
            .href_url.domain.root_domain != sender.email.domain.root_domain
    )
  ),
  (
    // suspicious domain in headers
    any(headers.domains,
        // it's not an org domain
        .root_domain not in $org_domains

        // low reputation
        and .root_domain not in $alexa_1m

        // no one has sent an email to it before
        and .root_domain not in $recipient_domains
    )
  ),
  (
    // suspicious language
    any(ml.nlu_classifier(body.current_thread.text).intents,
        .name != "benign" and .confidence == "high"
    )
  ),
  (
    // suspicious language
    any(ml.nlu_classifier(body.current_thread.text).intents,
        .name != "benign" and .confidence == "high"
    )
  ),
)