Trend Micro CAS - DLP violation

Status: available
Severity: high
Time window: 15m
Source: github.com/Azure/Azure-Sentinel

'Detects when DLP policy violation occurs.'

MITRE ATT&CK coverage

Tactic	Techniques
Exfiltration	`T1048` Exfiltration Over Alternative Protocol

Rule body

id: 1ddeb8ad-cad9-4db4-b074-f9da003ca3ed
name: Trend Micro CAS - DLP violation
description: |
  'Detects when DLP policy violation occurs.'
severity: High
status: Available
requiredDataConnectors:
  - connectorId: TrendMicroCAS
    dataTypes:
      - TrendMicroCAS
queryFrequency: 15m
queryPeriod: 15m
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Exfiltration
relevantTechniques:
  - T1048
query: |
  TrendMicroCAS
  | where isnotempty(TriggeredDlpTemplate)
  | extend AccountCustomEntity = DstUserName
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: AccountCustomEntity
version: 1.0.1
kind: Scheduled

Stages and Predicates

Stage 1: `source`

TrendMicroCAS

Stage 2: `where`

| where isnotempty(TriggeredDlpTemplate)

Stage 3: `extend`

| extend AccountCustomEntity = DstUserName

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`TriggeredDlpTemplate`	is_not_null	(no value, null check)	`field:"TriggeredDlpTemplate" kind:is_not_null`

Output fields

These fields are emitted when the rule matches.

Field	Source
`AccountCustomEntity`	`extend`

Trend Micro CAS - DLP violation

MITRE ATT&CK coverage

Rule body

Stages and Predicates

Stage 1: source

Stage 2: where

Stage 3: extend

Indicators

Output fields

Stage 1: `source`

Stage 2: `where`

Stage 3: `extend`