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

ARM