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

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

ARM