• Sublime Core Feed

Description

Impersonation of United Parcel Service (UPS).

Sublime Security
Created Aug 17th, 2023 • Last updated Sep 22nd, 2025
Source
type.inbound
and sender.email.domain.root_domain not in ("ups.com", "upsemail.com")
and (
  sender.display_name in~ ("UPS My Choice", "UPS Services")
  or strings.ilike(sender.email.local_part, "*united*parcel*service*")
  or strings.ilike(sender.email.domain.domain, '*united*parcel*service*')
  or strings.icontains(subject.subject, 'UPS delivery')
  or sender.email.local_part =~ "ups"
  or regex.icontains(sender.display_name,
                     "U[^a-zA-Z]P[^a-zA-Z]S(?:[^a-zA-Z]|$)"
  )
)
and (
  // Observed in the "footer" of impersation messages
  // added this due to the UPS image not loading on some emails
  strings.icontains(body.current_thread.text, "United Parcel Service of")
  or any(ml.logo_detect(file.message_screenshot()).brands, .name is not null)
)
and sender.email.email not in $recipient_emails

// 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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