Detection rules › Sublime MQL
Brand impersonation: Dotloop
Impersonation of Dotloop, a real estate transaction management platform.
Threat classification
Sublime's own taxonomy (not MITRE ATT&CK).
| Category | Values |
|---|---|
| Attack types | Credential Phishing |
| Tactics and techniques | Impersonation: Brand, Social engineering |
Event coverage
| Message attribute |
|---|
| headers.auth_summary |
| sender |
| sender.email |
| type |
Rule body MQL
type.inbound
and (
strings.ilike(sender.display_name, '*dotloop*')
or strings.ilike(sender.email.domain.domain, '*dotloop*')
)
and sender.email.domain.root_domain not in~ ('dotloop.com', 'showingtime.com')
and (
(
profile.by_sender().prevalence in ("new", "outlier")
and not profile.by_sender().solicited
)
or profile.by_sender().any_messages_malicious_or_spam
)
and not profile.by_sender().any_messages_benign
// 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
)
Detection logic
Scope: inbound message.
Impersonation of Dotloop, a real estate transaction management platform.
- inbound message
any of:
- sender.display_name matches '*dotloop*'
- sender.email.domain.domain matches '*dotloop*'
- sender.email.domain.root_domain not in ('dotloop.com', 'showingtime.com')
any of:
all of:
- profile.by_sender().prevalence in ('new', 'outlier')
not:
- profile.by_sender().solicited
- profile.by_sender().any_messages_malicious_or_spam
not:
- profile.by_sender().any_messages_benign
any of:
all of:
- sender.email.domain.root_domain in $high_trust_sender_root_domains
not:
- headers.auth_summary.dmarc.pass
- sender.email.domain.root_domain not in $high_trust_sender_root_domains
Inspects: headers.auth_summary.dmarc.pass, sender.display_name, sender.email.domain.domain, sender.email.domain.root_domain, type.inbound. Sensors: profile.by_sender, strings.ilike. Reference lists: $high_trust_sender_root_domains.
Indicators matched (3)
| Field | Match | Value |
|---|---|---|
strings.ilike | substring | *dotloop* |
sender.email.domain.root_domain | member | dotloop.com |
sender.email.domain.root_domain | member | showingtime.com |