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

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

ARM