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

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

ARM