• Sublime Core Feed
Medium Severity

Brand impersonation: Zoom (strict)

Description

Impersonation of the video conferencing provider Zoom. This "strict" version of this rule will only flag when the sender's display name matches those used by Zoom exactly.

Sublime Security
Created Aug 17th, 2023 • Last updated Aug 4th, 2024
Source
type.inbound
and (
  sender.display_name =~ 'zoom'
  or sender.display_name =~ 'zoom video communications, inc.'
  or sender.display_name =~ 'zoom call'
)
and sender.email.domain.root_domain not in (
  'zoom.us',
  'zuora.com',
  'zoomgov.com',
  'zoom.com'
)
and (
  // if this comes from a free email provider,
  // flag if org has never sent an email to sender's email before
  (
    sender.email.domain.root_domain in $free_email_providers
    and not profile.by_sender().solicited
  )
  // if this comes from a custom domain,
  // flag if org has never sent an email to sender's domain before
  or (
    sender.email.domain.root_domain not in $free_email_providers
    and not profile.by_sender().solicited
  )
)
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