Brand impersonation: GoDaddy

 1name: "Brand impersonation: GoDaddy"
 2description: "Detects messages where the sender is impersonating GoDaddy through display name manipulation or lookalike domains, while not being legitimately authenticated from GoDaddy's infrastructure."
 3type: "rule"
 4severity: "medium"
 5source: |
 6  type.inbound
 7  and (
 8    regex.icontains(sender.display_name, 'godaddy')
 9    or strings.ilike(sender.display_name, "*godaddy*")
10    or strings.ilevenshtein(sender.display_name, 'godaddy') <= 1
11    or strings.ilike(sender.email.domain.domain, '*godaddy*')
12  )
13  and not (
14    sender.email.domain.root_domain in (
15      "godaddy.com",
16      "registry.godaddy",
17      "sucuri.net"
18    )
19    and headers.auth_summary.dmarc.pass
20  )
21  and not profile.by_sender().solicited
22  // negate highly trusted sender domains unless they fail DMARC authentication
23  and (
24    (
25      sender.email.domain.root_domain in $high_trust_sender_root_domains
26      and not headers.auth_summary.dmarc.pass
27    )
28    or sender.email.domain.root_domain not in $high_trust_sender_root_domains
29  )  
30
31attack_types:
32  - "Credential Phishing"
33tactics_and_techniques:
34  - "Impersonation: Brand"
35  - "Social engineering"
36detection_methods:
37  - "Header analysis"
38  - "Sender analysis"
39id: "4130d555-40fc-5b12-bbf0-60cf5e93c15f"