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Description

Detects messages containing links to catbox.moe file hosting service from senders who either aren't in highly trusted domains or failed DMARC authentication

References

No references.

Sublime Security
Created Jul 9th, 2025 • Last updated Aug 5th, 2025
Source
type.inbound
and any(body.links,
        .href_url.domain.root_domain == "catbox.moe"
        and not strings.iends_with(.href_url.path, ".json")
)
// negate highly trusted sender domains unless they fail DMARC authentication
and (
  (
    sender.email.domain.root_domain in $high_trust_sender_root_domains
    and not coalesce(headers.auth_summary.dmarc.pass, false)
  )
  or sender.email.domain.root_domain not in $high_trust_sender_root_domains
)
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