sublimemediumRule

Service abuse: Microsoft Power Automate callback scam impersonation

Detects callback scam attempts using the legitimate Microsoft Power Automate service email address with high-confidence callback scam language in the message body.

MITRE ATT&CK

T1566.003 T1598 T1566

initial-access

Detection Query

type.inbound
and sender.email.email == 'flow-noreply@microsoft.com'
and any(ml.nlu_classifier(body.current_thread.text).intents,
        .name == "callback_scam" and .confidence != "low"
)

Data Sources

Email MessagesEmail HeadersEmail Attachments

Platforms

Raw Content

name: "Service abuse: Microsoft Power Automate callback scam impersonation"
description: "Detects callback scam attempts using the legitimate Microsoft Power Automate service email address with high-confidence callback scam language in the message body."
type: "rule"
severity: "medium"
source: |
  type.inbound
  and sender.email.email == 'flow-noreply@microsoft.com'
  and any(ml.nlu_classifier(body.current_thread.text).intents,
          .name == "callback_scam" and .confidence != "low"
  )

attack_types:
  - "Callback Phishing"
tactics_and_techniques:
  - "Out of band pivot"
  - "Social engineering"
detection_methods:
  - "Content analysis"
  - "Natural Language Understanding"
  - "Sender analysis"
id: "18d1c18b-ce21-5c53-b993-195ce8fdbe11"