Claroty - Critical baseline deviation

ClarotyEvent
| where EventOriginalType has 'Baseline Deviation' or EventType has 'Baseline Deviation'
| where EventSeverity == '5'
| project TimeGenerated, DstIpAddr
| extend IPCustomEntity = DstIpAddr

relevantTechniques:
- T1529
name: Claroty - Critical baseline deviation
requiredDataConnectors:
- dataTypes:
  - ClarotyEvent
  connectorId: Claroty
- dataTypes:
  - ClarotyEvent
  connectorId: ClarotyAma
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
  entityType: IP
triggerThreshold: 0
id: 9a8b4321-e2be-449b-8227-a78227441b2a
tactics:
- Impact
version: 1.0.2
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyCriticalBaselineDeviation.yaml
queryPeriod: 1h
kind: Scheduled
queryFrequency: 1h
severity: High
status: Available
description: |
    'Detects when critical deviation from baseline occurs.'
query: |
  ClarotyEvent
  | where EventOriginalType has 'Baseline Deviation' or EventType has 'Baseline Deviation'
  | where EventSeverity == '5'
  | project TimeGenerated, DstIpAddr
  | extend IPCustomEntity = DstIpAddr  
triggerOperator: gt

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/9a8b4321-e2be-449b-8227-a78227441b2a')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/9a8b4321-e2be-449b-8227-a78227441b2a')]",
      "properties": {
        "alertRuleTemplateName": "9a8b4321-e2be-449b-8227-a78227441b2a",
        "customDetails": null,
        "description": "'Detects when critical deviation from baseline occurs.'\n",
        "displayName": "Claroty - Critical baseline deviation",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyCriticalBaselineDeviation.yaml",
        "query": "ClarotyEvent\n| where EventOriginalType has 'Baseline Deviation' or EventType has 'Baseline Deviation'\n| where EventSeverity == '5'\n| project TimeGenerated, DstIpAddr\n| extend IPCustomEntity = DstIpAddr\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1529"
        ],
        "templateVersion": "1.0.2",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}