Multiple scans in the network Microsoft Defender for IoT

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Id	493916d5-a094-4bfa-bdd1-d983a063ea3d
Rulename	Multiple scans in the network (Microsoft Defender for IoT)
Description	This alert leverages Defender for IoT to detect multiple scans on the network indicating new devices, functionality, application misconfiguration, or malicious reconnaissance activity on the network.
Severity	High
Tactics	Discovery
Techniques	T0842
Required data connectors	IoT
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTNetworkScanning.yaml
Version	1.0.3
Arm template	493916d5-a094-4bfa-bdd1-d983a063ea3d.json

KQL

SecurityAlert
| where ProviderName == "IoTSecurity"
| where AlertName has "Scan"
| 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

YAML

status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTNetworkScanning.yaml
version: 1.0.3
queryPeriod: 5m
query: |
  SecurityAlert
  | where ProviderName == "IoTSecurity"
  | where AlertName has "Scan"
  | 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  
kind: Scheduled
name: Multiple scans in the network (Microsoft Defender for IoT)
triggerOperator: gt
severity: High
eventGroupingSettings:
  aggregationKind: AlertPerResult
id: 493916d5-a094-4bfa-bdd1-d983a063ea3d
triggerThreshold: 0
entityMappings: 
sentinelEntitiesMappings:
- columnName: Entities
queryFrequency: 5m
alertDetailsOverride:
  alertTacticsColumnName: Tactics
  alertSeverityColumnName: AlertSeverity
  alertDescriptionFormat: (MDIoT) {{Description}}
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: RemediationSteps
    value: RemediationSteps
  - alertProperty: Techniques
    value: Techniques
  - alertProperty: ProductComponentName
    value: ProductComponentName
  - alertProperty: AlertLink
    value: AlertLink
  alertDisplayNameFormat: (MDIoT) {{AlertName}}
description: |
    'This alert leverages Defender for IoT to detect multiple scans on the network indicating new devices, functionality, application misconfiguration, or malicious reconnaissance activity on the network.'
requiredDataConnectors:
- connectorId: IoT
  dataTypes:
  - SecurityAlert (ASC for IoT)
customDetails:
  Sensor: DeviceId
  Protocol: Protocol
  AlertManagementUri: AlertManagementUri
  VendorOriginalId: VendorOriginalId
relevantTechniques:
- T0842
tactics:
- Discovery

ARM