PLC unsecure key state Microsoft Defender for IoT

SecurityAlert
| where ProviderName == "IoTSecurity"
| where AlertName has "PLC Operating Mode Changed"
| extend ExtendedProperties = parse_json(ExtendedProperties)
| where tostring(ExtendedProperties.isNew) == "True"
| extend DeviceId = tostring(ExtendedProperties.DeviceId), 
         SourceDeviceAddress = tostring(ExtendedProperties.SourceDeviceAddress), 
         DestDeviceAddress = tostring(ExtendedProperties.DestinationDeviceAddress), 
         RemediationSteps = tostring(parse_json(RemediationSteps)[0]), 
         Protocol = tostring(ExtendedProperties.Protocol), 
         AlertManagementUri = tostring(ExtendedProperties.AlertManagementUri)
| project
  TimeGenerated,
  DeviceId,
  ProductName,
  ProductComponentName,
  AlertSeverity,
  AlertName,
  Description,
  Protocol,
  SourceDeviceAddress,
  DestDeviceAddress,
  RemediationSteps,
  Tactics,
  Entities,
  VendorOriginalId,
  AlertLink,
  AlertManagementUri,
  Techniques

entityMappings: 
query: |
  SecurityAlert
  | where ProviderName == "IoTSecurity"
  | where AlertName has "PLC Operating Mode Changed"
  | extend ExtendedProperties = parse_json(ExtendedProperties)
  | where tostring(ExtendedProperties.isNew) == "True"
  | extend DeviceId = tostring(ExtendedProperties.DeviceId), 
           SourceDeviceAddress = tostring(ExtendedProperties.SourceDeviceAddress), 
           DestDeviceAddress = tostring(ExtendedProperties.DestinationDeviceAddress), 
           RemediationSteps = tostring(parse_json(RemediationSteps)[0]), 
           Protocol = tostring(ExtendedProperties.Protocol), 
           AlertManagementUri = tostring(ExtendedProperties.AlertManagementUri)
  | project
    TimeGenerated,
    DeviceId,
    ProductName,
    ProductComponentName,
    AlertSeverity,
    AlertName,
    Description,
    Protocol,
    SourceDeviceAddress,
    DestDeviceAddress,
    RemediationSteps,
    Tactics,
    Entities,
    VendorOriginalId,
    AlertLink,
    AlertManagementUri,
    Techniques
eventGroupingSettings:
  aggregationKind: AlertPerResult
id: f9df500a-e2a4-4104-a517-dc1d85bb654f
queryFrequency: 3h
alertDetailsOverride:
  alertDynamicProperties:
  - value: ProductName
    alertProperty: ProductName
  - value: RemediationSteps
    alertProperty: RemediationSteps
  - value: Techniques
    alertProperty: Techniques
  - value: ProductComponentName
    alertProperty: ProductComponentName
  - value: AlertLink
    alertProperty: AlertLink
  alertDescriptionFormat: (MDIoT) {{Description}}
  alertSeverityColumnName: AlertSeverity
  alertTacticsColumnName: Tactics
  alertDisplayNameFormat: (MDIoT) {{AlertName}}
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic%20Rules/IoTInsecurePLC.yaml
version: 1.0.3
severity: Low
relevantTechniques:
- T0858
name: PLC unsecure key state (Microsoft Defender for IoT)
kind: Scheduled
tactics:
- Execution
requiredDataConnectors:
- dataTypes:
  - SecurityAlert (ASC for IoT)
  connectorId: IoT
description: |
  'This alert leverages Defender for IoT to detect PLC operating mode changes indicating the PLC is potentially insecure. If the PLC is compromised, devices that interact with it may be impacted. This may affect overall system security and safety.'
sentinelEntitiesMappings:
- columnName: Entities
customDetails:
  Sensor: DeviceId
  Protocol: Protocol
  AlertManagementUri: AlertManagementUri
  VendorOriginalId: VendorOriginalId
triggerOperator: gt
triggerThreshold: 0
queryPeriod: 3h

{
  "$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/f9df500a-e2a4-4104-a517-dc1d85bb654f')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/f9df500a-e2a4-4104-a517-dc1d85bb654f')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "(MDIoT) {{Description}}",
          "alertDisplayNameFormat": "(MDIoT) {{AlertName}}",
          "alertDynamicProperties": [
            {
              "alertProperty": "ProductName",
              "value": "ProductName"
            },
            {
              "alertProperty": "RemediationSteps",
              "value": "RemediationSteps"
            },
            {
              "alertProperty": "Techniques",
              "value": "Techniques"
            },
            {
              "alertProperty": "ProductComponentName",
              "value": "ProductComponentName"
            },
            {
              "alertProperty": "AlertLink",
              "value": "AlertLink"
            }
          ],
          "alertSeverityColumnName": "AlertSeverity",
          "alertTacticsColumnName": "Tactics"
        },
        "alertRuleTemplateName": "f9df500a-e2a4-4104-a517-dc1d85bb654f",
        "customDetails": {
          "AlertManagementUri": "AlertManagementUri",
          "Protocol": "Protocol",
          "Sensor": "DeviceId",
          "VendorOriginalId": "VendorOriginalId"
        },
        "description": "'This alert leverages Defender for IoT to detect PLC operating mode changes indicating the PLC is potentially insecure. If the PLC is compromised, devices that interact with it may be impacted. This may affect overall system security and safety.'\n",
        "displayName": "PLC unsecure key state (Microsoft Defender for IoT)",
        "enabled": true,
        "entityMappings": null,
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic%20Rules/IoTInsecurePLC.yaml",
        "query": "SecurityAlert\n| where ProviderName == \"IoTSecurity\"\n| where AlertName has \"PLC Operating Mode Changed\"\n| extend ExtendedProperties = parse_json(ExtendedProperties)\n| where tostring(ExtendedProperties.isNew) == \"True\"\n| extend DeviceId = tostring(ExtendedProperties.DeviceId), \n         SourceDeviceAddress = tostring(ExtendedProperties.SourceDeviceAddress), \n         DestDeviceAddress = tostring(ExtendedProperties.DestinationDeviceAddress), \n         RemediationSteps = tostring(parse_json(RemediationSteps)[0]), \n         Protocol = tostring(ExtendedProperties.Protocol), \n         AlertManagementUri = tostring(ExtendedProperties.AlertManagementUri)\n| project\n  TimeGenerated,\n  DeviceId,\n  ProductName,\n  ProductComponentName,\n  AlertSeverity,\n  AlertName,\n  Description,\n  Protocol,\n  SourceDeviceAddress,\n  DestDeviceAddress,\n  RemediationSteps,\n  Tactics,\n  Entities,\n  VendorOriginalId,\n  AlertLink,\n  AlertManagementUri,\n  Techniques\n",
        "queryFrequency": "PT3H",
        "queryPeriod": "PT3H",
        "sentinelEntitiesMappings": [
          {
            "columnName": "Entities"
          }
        ],
        "severity": "Low",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution"
        ],
        "techniques": null,
        "templateVersion": "1.0.3",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}