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Description

Message contains use of the bananaguide.com redirect with url parameter. This has been exploited in the wild.

References

No references.

Sublime Security
Created Jun 6th, 2025 • Last updated Aug 5th, 2025
Source
type.inbound
and any(body.links,
        .href_url.domain.domain == "bananaguide.com"
        and .href_url.path == "/thru.php"
        and length(.href_url.query_params_decoded["url"]) > 0
        // Make sure the redirect is not going back to bananaguide.com
        and not any(.href_url.query_params_decoded["url"],
                    strings.parse_url(.).domain.root_domain == "bananaguide.com"
        )
)
and not sender.email.domain.root_domain == "bananaguide.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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