Detection rules › Sublime MQL

Service abuse: GetAccept callback scam content

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

Detects callback scam language in messages sent through legitimate GetAccept infrastructure, indicating potential abuse of the service for fraudulent solicitation.

Threat classification

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

CategoryValues
Attack typesCallback Phishing
Tactics and techniquesOut of band pivot, Social engineering

Event coverage

Rule body MQL

type.inbound
// Legitimate GetAccept sending infrastructure
and sender.email.domain.root_domain == 'getaccept.com'
and any(ml.nlu_classifier(body.current_thread.text).intents,
        .name == "callback_scam"
)

Detection logic

Scope: inbound message.

Detects callback scam language in messages sent through legitimate GetAccept infrastructure, indicating potential abuse of the service for fraudulent solicitation.

  1. inbound message
  2. sender.email.domain.root_domain is 'getaccept.com'
  3. any of ml.nlu_classifier(body.current_thread.text).intents where:
    • .name is 'callback_scam'

Inspects: body.current_thread.text, sender.email.domain.root_domain, type.inbound. Sensors: ml.nlu_classifier.

Indicators matched (2)

FieldMatchValue
sender.email.domain.root_domainequalsgetaccept.com
ml.nlu_classifier(body.current_thread.text).intents[].nameequalscallback_scam