Sublime Security medium experimental mql
Open redirect: bestdeals.today
Message contains use of the bestdeals.today open redirect. This has been exploited in the wild.
Detection Logic
type.inbound
and any(body.links,
.href_url.domain.root_domain == "bestdeals.today"
and strings.icontains(.href_url.path, '/redirect')
and regex.icontains(.href_url.query_params, '(?:^
| &)url=')
)
and sender.email.domain.root_domain != 'bestdeals.today'
and headers.return_path.domain.root_domain != "bestdeals.today"
// 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
) Field Validations
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