• Sublime Core Feed

Description

Detects messages abusing Cisco's secure email service (res.cisco.com) that contain financial topics or invoice requests, with mismatched reply-to domains and undisclosed recipients.

References

No references.

Sublime Security
Created Oct 1st, 2025 • Last updated Oct 1st, 2025
Source
type.inbound
and sender.email.domain.domain == 'res.cisco.com'
and any(headers.reply_to, .email.domain.domain != 'res.cisco.com')
and (
  length(recipients.to) == 0
  or all(recipients.to, .display_name == "Undisclosed recipients")
)
and (
  any(ml.nlu_classifier(body.current_thread.text).topics,
      .name in ("Financial Communications", "Request to View Invoice")
  )
  or any(ml.nlu_classifier(subject.base).entities, .name == "financial")
)
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