Critical Severity Incident

Back


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

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

ARM