NordPass - User data detected in breach

Severity: high
Time window: 5m
Source: github.com/Azure/Azure-Sentinel

This will alert you when Data Breach Scanner discovers data related to a member of your organization on the dark web.

MITRE ATT&CK coverage

Tactic	Techniques
Exfiltration	`T1020` Automated Exfiltration

Rule body

id: c4d2eb42-a4ab-4db6-a270-3d2ed7e057a0
name: NordPass - User data detected in breach
kind: Scheduled
version: 1.0.0
displayName: User data detected in breach
description: |
  This will alert you when Data Breach Scanner discovers data related to a member of your organization on the dark web.
severity: High
query: |
  NordPassEventLogs_CL
  | where event_type == "breach"
  | where action == "email_breached"
  | extend TargetEmail = user_email
requiredDataConnectors:
  - connectorId: NordPass
    dataTypes:
      - NordPassEventLogs_CL
queryFrequency: 5m
queryPeriod: 5m
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Exfiltration
relevantTechniques:
  - T1020
incidentConfiguration:
  createIncident: false
entityMappings:
- entityType: Mailbox
  fieldMappings:
  - identifier: MailboxPrimaryAddress
    columnName: TargetEmail

Stages and Predicates

Stage 1: `source`

NordPassEventLogs_CL

Stage 2: `where`

| where event_type == "breach"

Stage 3: `where`

| where action == "email_breached"

Stage 4: `extend`

| extend TargetEmail = user_email

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`action`	eq	`email_breached`	`field:"action" kind:eq value:"email_breached"`
`event_type`	eq	`breach`	`field:"event_type" kind:eq value:"breach"`

Output fields

These fields are emitted when the rule matches.

Field	Source
`TargetEmail`	`extend`