Open redirect: ust.hk

type.inbound
and any(body.links,
        .href_url.domain.domain == "shib.ust.hk"
        and strings.icontains(.href_url.path, '/discovery.jsp')
        and regex.icontains(.href_url.query_params, '(?:^|&)return=')
)

// 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
)