Sublime Security medium experimental mql

Link: IPFS

Detects messages containing links that have 'ipfs' in the domain, or unanalyzed links that contain 'ipfs' in the url. IPFS has been recently observed hosting phishing sites.

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Detection Logic

type.inbound
and any(body.links,
        // Any body link domains contain "ipfs"
        (
          strings.icontains(.href_url.domain.domain, "ipfs")
          and not .href_url.domain.root_domain == "ipfs.com"
        )

        // Or the path contains ipfs anchored to a leading and trailing '-', '/', '.'
        or (
          regex.icontains(.href_url.query_params, '[\.-/]ipfs[\.-/]')
          and .href_url.domain.domain not in $org_domains
          and (
            (
              // don't include high rep domains
              .href_url.domain.domain not in $tranco_1m
              and .href_url.domain.domain not in $umbrella_1m
            )
            // if it's in Tranco or Umbrella, still include it if it's one of these
            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
          )
        )
)

// adding negation block for legitimate domains with ipfs in their name
and not sender.email.domain.domain in ("shipfsl.com")

// negate ipfs.com issues
and not any(recipients.to, .email.domain.domain == "ipfs.com")
and not (
  sender.email.domain.root_domain is not null
  and sender.email.domain.root_domain == "ipfs.com"
  and headers.auth_summary.dmarc.pass
)
and (
  not profile.by_sender().solicited
  or (
    profile.by_sender().any_messages_malicious_or_spam
    and not profile.by_sender().any_messages_benign
  )
)
and not profile.by_sender().any_messages_benign

Field Validations

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