• Sublime Core Feed
Medium Severity

Brand impersonation: Gusto

Labels

Credential Phishing
Impersonation: Brand
Lookalike domain
Social engineering
Computer Vision
Content analysis
Header analysis
Sender analysis

Description

Impersonation of Gusto, a cloud-based payroll management company.

References

No references.

Sublime Security
Created Aug 17th, 2023 • Last updated Apr 23rd, 2024
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and (
  strings.ilike(sender.display_name, '*gusto*')
  or strings.ilevenshtein(sender.display_name, 'gusto') <= 1
  or strings.ilike(sender.email.domain.domain, '*gusto*')
)
and any(ml.logo_detect(beta.message_screenshot()).brands,
        .name == "Gusto" and .confidence in ("medium", "high")
)
and sender.email.domain.root_domain !~ 'gusto.com'

and not profile.by_sender().solicited

// 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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