• Sublime Core Feed

Description

Detects messages impersonating Aquent, a staffing and talent solutions company, by analyzing sender display names and body content for Aquent branding and office addresses from unauthorized domains.

References

No references.

Sublime Security
Created Oct 9th, 2025 • Last updated Oct 9th, 2025
Source
type.inbound
and (
  regex.icontains(sender.display_name, 'Aquent\b')
  // look for Aquent address from footer, or current address being used by actors
  or (
    strings.icontains(body.current_thread.text, 'Aquent')
    and (
      (
        strings.icontains(body.current_thread.text, '2884 Sand Hill Road')
        and strings.icontains(body.current_thread.text, 'Menlo Park, CA 94025')
      )
      or (
        strings.icontains(body.current_thread.text, '501 Boylston St')
        and strings.icontains(body.current_thread.text, 'Boston, MA 02116')
      )
    )
  )
)
and not (
  sender.email.domain.root_domain in $org_domains
  or (
    sender.email.domain.root_domain in (
      "aquent.com",
      "dice.com",
      "roberthalf.com",
      "roberthalf.be",
      "service-now.com",
      "protiviti.com",
      "atlassian.net",
      "workday.com",
      "myworkday.com",
      "rapdev.io",
      "immersivelabs.com",
      "outsidegc.com"
    )
    and headers.auth_summary.dmarc.pass
  )
)
// not a forward or reply
and (headers.in_reply_to is null or length(headers.references) == 0)
and not any(ml.nlu_classifier(body.current_thread.text).topics,
            .name == "Advertising and Promotions" and .confidence != "low"
)
// negate instances where proofpoint sends a review of a reported message via analyzer 
and not (
  sender.email.email == "analyzer@analyzer.securityeducation.com"
  and any(headers.domains, .root_domain == "pphosted.com")
  and headers.auth_summary.spf.pass
  and headers.auth_summary.dmarc.pass
)
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