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

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

ARM