Detection rules › Kusto
Trend Micro CAS - Threat detected and not blocked
'Detects when threat was not blocked by CAS solution.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Impairment |
Rule body
id: c8e2ad52-bd5f-4f74-a2f7-6c3ab8ba687a
name: Trend Micro CAS - Threat detected and not blocked
description: |
'Detects when threat was not blocked by CAS solution.'
severity: High
status: Available
requiredDataConnectors:
- connectorId: TrendMicroCAS
dataTypes:
- TrendMicroCAS
queryFrequency: 10m
queryPeriod: 10m
triggerOperator: gt
triggerThreshold: 0
tactics:
- DefenseEvasion
relevantTechniques:
- T1562
query: |
TrendMicroCAS
| where isnotempty(SecurityRiskName)
| where EventOriginalResultDetails !has 'Blocked' or EventOriginalResultDetails !has 'Block' or EventOriginalResultDetails !has 'Quarantine' or TriggeredPolicyName has 'Monitor Only'
| 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(SecurityRiskName)
Stage 3: where
| where EventOriginalResultDetails !has 'Blocked' or EventOriginalResultDetails !has 'Block' or EventOriginalResultDetails !has 'Quarantine' or TriggeredPolicyName has 'Monitor Only'
Stage 4: extend
| extend AccountCustomEntity = DstUserName
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
SecurityRiskName | is_not_null | field:"SecurityRiskName" kind:is_not_null | |
TriggeredPolicyName | match |
| field:"TriggeredPolicyName" kind:match value:"Monitor Only" |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
AccountCustomEntity | extend |