sublimemediumRule

Brand impersonation: GoDaddy

Detects messages where the sender is impersonating GoDaddy through display name manipulation or lookalike domains, while not being legitimately authenticated from GoDaddy's infrastructure.

MITRE ATT&CK

T1566 T1566.001 T1566.002 T1598 T1598.003

initial-access

Detection Query

type.inbound
and (
  regex.icontains(sender.display_name, 'godaddy')
  or strings.ilike(sender.display_name, "*godaddy*")
  or strings.ilevenshtein(sender.display_name, 'godaddy') <= 1
  or strings.ilike(sender.email.domain.domain, '*godaddy*')
)
and not (
  sender.email.domain.root_domain in (
    "godaddy.com",
    "registry.godaddy",
    "sucuri.net"
  )
  and headers.auth_summary.dmarc.pass
)
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
)

Data Sources

Email MessagesEmail HeadersEmail Attachments

Platforms

Raw Content

name: "Brand impersonation: GoDaddy"
description: "Detects messages where the sender is impersonating GoDaddy through display name manipulation or lookalike domains, while not being legitimately authenticated from GoDaddy's infrastructure."
type: "rule"
severity: "medium"
source: |
  type.inbound
  and (
    regex.icontains(sender.display_name, 'godaddy')
    or strings.ilike(sender.display_name, "*godaddy*")
    or strings.ilevenshtein(sender.display_name, 'godaddy') <= 1
    or strings.ilike(sender.email.domain.domain, '*godaddy*')
  )
  and not (
    sender.email.domain.root_domain in (
      "godaddy.com",
      "registry.godaddy",
      "sucuri.net"
    )
    and headers.auth_summary.dmarc.pass
  )
  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
  )

attack_types:
  - "Credential Phishing"
tactics_and_techniques:
  - "Impersonation: Brand"
  - "Social engineering"
detection_methods:
  - "Header analysis"
  - "Sender analysis"
id: "4130d555-40fc-5b12-bbf0-60cf5e93c15f"