Sublime Security low experimental mql
Spam: Firebase password reset from suspicious sender
Detects Firebase password reset messages from suspicious or new senders that may be attempting to abuse the Firebase authentication service.
Detection Logic
type.inbound
and sender.email.domain.root_domain == "firebaseapp.com"
and length(filter(body.links,
.href_url.domain.root_domain not in ("aka.ms")
and .href_url.path is not null
)
) == 1
and any(body.links,
.href_url.domain.domain == sender.email.domain.domain
and .href_url.path == "/__/auth/action"
and any(.href_url.query_params_decoded["mode"], . == "resetPassword")
)
and (
(
not profile.by_sender().solicited
and profile.by_sender().prevalence == "new"
)
or (
profile.by_sender().any_messages_malicious_or_spam
and not profile.by_sender().any_messages_benign
)
or not headers.auth_summary.dmarc.pass
) Field Validations
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