Microsoft Sentinel Analytic Rules
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Claroty - Critical baseline deviation

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Id9a8b4321-e2be-449b-8227-a78227441b2a
RulenameClaroty - Critical baseline deviation
DescriptionDetects when critical deviation from baseline occurs.
SeverityHigh
TacticsImpact
TechniquesT1529
Required data connectorsClaroty
ClarotyAma
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyCriticalBaselineDeviation.yaml
Version1.0.1
Arm template9a8b4321-e2be-449b-8227-a78227441b2a.json
Deploy To Azure
ClarotyEvent
| where EventOriginalType has 'Baseline Deviation' or EventType has 'Baseline Deviation'
| where EventSeverity == '5'
| project TimeGenerated, DstIpAddr
| extend IPCustomEntity = DstIpAddr
kind: Scheduled
status: Available
triggerThreshold: 0
relevantTechniques:
- T1529
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyCriticalBaselineDeviation.yaml
requiredDataConnectors:
- dataTypes:
  - ClarotyEvent
  connectorId: Claroty
- dataTypes:
  - ClarotyEvent
  connectorId: ClarotyAma
queryPeriod: 1h
tactics:
- Impact
severity: High
triggerOperator: gt
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  
name: Claroty - Critical baseline deviation
version: 1.0.1
id: 9a8b4321-e2be-449b-8227-a78227441b2a
queryFrequency: 1h
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2023-02-01-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",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1529"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}