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

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

ARM