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Description

Message contains use of the tkqlhce.com redirect. This has been exploited in the wild for phishing.

References

No references.

Sublime Security
Created Mar 20th, 2025 • Last updated Jan 12th, 2026
Source
type.inbound
and length(body.links) < 10
and any(body.links,
        .href_url.domain.root_domain == "tkqlhce.com"
        and (
          (
            strings.icontains(.href_url.query_params, 'url=')
            and not regex.icontains(.href_url.query_params,
                                    'url=(?:https?(?:%3a|:))?(?:%2f|\/){2}[^&]*tkqlhce\.com(?:\&|\/|$|%2f)'
            )
          )
          or (
            strings.icontains(.href_url.path, '/links/')
            and strings.icontains(.href_url.path, '/type/dlg/')
            and regex.icontains(.href_url.path, 'https?://')
            and not regex.icontains(.href_url.path,
                                    '/links/[^/]+/type/dlg/(?:https?(?:%3a|:))?(?:%2f|\/){2}[^&]*tkqlhce\.com(?:\&|\/|$|%2f)'
            )
          )
        )
)
and not sender.email.domain.root_domain == "tkqlhce.com"

// 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
)
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