Critical Severity Incident

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Id	4f1c9e6e-8b6b-4d2a-9f3e-123456789abc
Rulename	Critical Severity Incident
Description	Triggers an incident for every Morphisec alert whose attacks severity is critical.
Severity	High
Tactics	Execution DefenseEvasion
Techniques	T1059 T1204
Required data connectors	MorphisecCCF
Kind	Scheduled
Query frequency	10m
Query period	10m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Morphisec/Analytic Rules/MorphisecCriticalSeverityIncident.yaml
Version	1.0.0
Arm template	4f1c9e6e-8b6b-4d2a-9f3e-123456789abc.json

KQL

MorphisecAlerts_CL
| where threatMessageArrivalTime >= ago(10m)
| where attackSeverity == "CRITICAL"
| summarize arg_max(threatMessageArrivalTime, *) by id

YAML

incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: 5h
    enabled: false
    reopenClosedIncident: false
    matchingMethod: AllEntities
  createIncident: true
id: 4f1c9e6e-8b6b-4d2a-9f3e-123456789abc
query: |
  MorphisecAlerts_CL
  | where threatMessageArrivalTime >= ago(10m)
  | where attackSeverity == "CRITICAL"
  | summarize arg_max(threatMessageArrivalTime, *) by id  
description: |
    'Triggers an incident for every Morphisec alert whose attacks severity is critical.'
requiredDataConnectors:
- connectorId: MorphisecCCF
  dataTypes:
  - Morphisec
alertDetailsOverride:
  alertDisplayNameFormat: 'Critical alert detected: {{threatSubType}}'
tactics:
- Execution
- DefenseEvasion
status: Available
queryFrequency: 10m
queryPeriod: 10m
suppressionEnabled: false
triggerOperator: gt
kind: Scheduled
name: Critical Severity Incident
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Morphisec/Analytic Rules/MorphisecCriticalSeverityIncident.yaml
version: 1.0.0
eventGroupingSettings:
  aggregationKind: SingleAlert
relevantTechniques:
- T1059
- T1204
suppressionDuration: 5h
severity: High
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: hostname
  entityType: Host
- fieldMappings:
  - identifier: CommandLine
    columnName: processCommandLine
  entityType: Process
triggerThreshold: 0

ARM