Detection rules › Kusto
Trend Micro CAS - Ransomware infection
'Triggeres when ransomware was detected.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Impact |
Rule body
id: 0bec3f9a-dbe9-4b4c-9ff6-498d64bbef90
name: Trend Micro CAS - Ransomware infection
description: |
'Triggeres when ransomware was detected.'
severity: High
status: Available
requiredDataConnectors:
- connectorId: TrendMicroCAS
dataTypes:
- TrendMicroCAS
queryFrequency: 5m
queryPeriod: 5m
triggerOperator: gt
triggerThreshold: 0
tactics:
- Impact
relevantTechniques:
- T1486
query: |
TrendMicroCAS
| where EventType =~ 'ransomware'
| extend AccountCustomEntity = DstUserName, MalwareCustomEntity = RansomwareName
entityMappings:
- entityType: Account
fieldMappings:
- identifier: Name
columnName: AccountCustomEntity
- entityType: Malware
fieldMappings:
- identifier: Name
columnName: MalwareCustomEntity
version: 1.0.1
kind: Scheduled
Stages and Predicates
Stage 1: source
TrendMicroCAS
Stage 2: where
| where EventType =~ 'ransomware'
Stage 3: extend
| extend AccountCustomEntity = DstUserName, MalwareCustomEntity = RansomwareName
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
EventType | eq |
| field:"EventType" kind:eq value:"ransomware" |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
AccountCustomEntity | extend |
MalwareCustomEntity | extend |