Detection rules › Sublime MQL

Service abuse: Domains By Proxy sender

Severity
medium
Type
rule
Source
github.com/sublime-security/sublime-rules

Message originates from a sender using Domains By Proxy's domain privacy service, commonly used to hide domain ownership information.

Threat classification

Sublime's own taxonomy (not MITRE ATT&CK).

CategoryValues
Attack typesSpam, Credential Phishing, BEC/Fraud
Tactics and techniquesEvasion, Social engineering

Event coverage

Message attribute
sender.email
type

Rule body MQL

type.inbound
and sender.email.domain.root_domain == 'domainsbyproxy.com'

Detection logic

Scope: inbound message.

Message originates from a sender using Domains By Proxy's domain privacy service, commonly used to hide domain ownership information.

  1. inbound message
  2. sender.email.domain.root_domain is 'domainsbyproxy.com'

Inspects: sender.email.domain.root_domain, type.inbound.

Indicators matched (1)

FieldMatchValue
sender.email.domain.root_domainequalsdomainsbyproxy.com