Claroty - Asset Down

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Id	fd6e3416-0421-4166-adb9-186e555a7008
Rulename	Claroty - Asset Down
Description	Triggers asset is down.
Severity	High
Tactics	Impact
Techniques	T1529
Required data connectors	CefAma Claroty ClarotyAma
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyAssetDown.yaml
Version	1.0.2
Arm template	fd6e3416-0421-4166-adb9-186e555a7008.json

KQL

ClarotyEvent
| where EventOriginalType has 'Asset Down' or EventType has 'Asset Down'
| project TimeGenerated, DstIpAddr
| extend IPCustomEntity = DstIpAddr

YAML

kind: Scheduled
relevantTechniques:
- T1529
description: |
    'Triggers asset is down.'
queryPeriod: 1h
queryFrequency: 1h
tactics:
- Impact
name: Claroty - Asset Down
requiredDataConnectors:
- connectorId: Claroty
  dataTypes:
  - ClarotyEvent
- connectorId: ClarotyAma
  dataTypes:
  - ClarotyEvent
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
triggerThreshold: 0
version: 1.0.2
id: fd6e3416-0421-4166-adb9-186e555a7008
query: |
  ClarotyEvent
  | where EventOriginalType has 'Asset Down' or EventType has 'Asset Down'
  | project TimeGenerated, DstIpAddr
  | extend IPCustomEntity = DstIpAddr  
status: Available
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyAssetDown.yaml
severity: High

ARM

{
  "$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/fd6e3416-0421-4166-adb9-186e555a7008')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/fd6e3416-0421-4166-adb9-186e555a7008')]",
      "properties": {
        "alertRuleTemplateName": "fd6e3416-0421-4166-adb9-186e555a7008",
        "customDetails": null,
        "description": "'Triggers asset is down.'\n",
        "displayName": "Claroty - Asset Down",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyAssetDown.yaml",
        "query": "ClarotyEvent\n| where EventOriginalType has 'Asset Down' or EventType has 'Asset Down'\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"
    }
  ]
}