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

eventGroupingSettings:
  aggregationKind: SingleAlert
triggerThreshold: 0
entityMappings:
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: hostname
- entityType: Process
  fieldMappings:
  - identifier: CommandLine
    columnName: processCommandLine
requiredDataConnectors:
- dataTypes:
  - Morphisec
  connectorId: MorphisecCCF
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Morphisec/Analytic Rules/MorphisecCriticalSeverityIncident.yaml
queryFrequency: 10m
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: false
    reopenClosedIncident: false
    matchingMethod: AllEntities
    lookbackDuration: 5h
name: Critical Severity Incident
alertDetailsOverride:
  alertDisplayNameFormat: 'Critical alert detected: {{threatSubType}}'
relevantTechniques:
- T1059
- T1204
status: Available
version: 1.0.0
queryPeriod: 10m
kind: Scheduled
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.'
suppressionEnabled: false
suppressionDuration: 5h
triggerOperator: gt
tactics:
- Execution
- DefenseEvasion
severity: High

ARM