Denial of Service Microsoft Defender for IoT

SecurityAlert
| where ProviderName == "IoTSecurity"
| where AlertName == "Suspicion of Denial Of Service Attack"
| 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

triggerThreshold: 0
query: |
  SecurityAlert
  | where ProviderName == "IoTSecurity"
  | where AlertName == "Suspicion of Denial Of Service Attack"
  | 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
requiredDataConnectors:
- connectorId: IoT
  dataTypes:
  - SecurityAlert (ASC for IoT)
id: e068187a-01f5-4737-bc13-25db4027b7ea
entityMappings: 
alertDetailsOverride:
  alertTacticsColumnName: Tactics
  alertDisplayNameFormat: (MDIoT) {{AlertName}}
  alertDescriptionFormat: (MDIoT) {{Description}}
  alertSeverityColumnName: AlertSeverity
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: RemediationSteps
    value: RemediationSteps
  - alertProperty: Techniques
    value: Techniques
  - alertProperty: ProductComponentName
    value: ProductComponentName
  - alertProperty: AlertLink
    value: AlertLink
customDetails:
  VendorOriginalId: VendorOriginalId
  Protocol: Protocol
  Sensor: DeviceId
  AlertManagementUri: AlertManagementUri
queryPeriod: 5m
severity: High
queryFrequency: 5m
triggerOperator: gt
name: Denial of Service (Microsoft Defender for IoT)
relevantTechniques:
- T0814
tactics:
- InhibitResponseFunction
description: |
    'This alert leverages Defender for IoT to detect attacks that would prevent the use or proper operation of a DCS system including Denial of Service events.'
kind: Scheduled
sentinelEntitiesMappings:
- columnName: Entities
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTDenialofService.yaml
version: 1.0.3