No traffic on Sensor Detected (Microsoft Defender for IoT)
Id | 208c3f5b-3ba2-49b5-9bca-c44e58cd5fd3 |
Rulename | No traffic on Sensor Detected (Microsoft Defender for IoT) |
Description | This alert leverages Defender for IoT to detect that a sensor can no longer detect the network traffic, which indicates that the system is potentially insecure. |
Severity | High |
Tactics | InhibitResponseFunction |
Techniques | T0881 |
Required data connectors | IoT |
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/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTINoSensorTrafficDetected.yaml |
Version | 1.0.1 |
Arm template | 208c3f5b-3ba2-49b5-9bca-c44e58cd5fd3.json |
SecurityAlert
| where ProviderName == "IoTSecurity"
| where AlertName == "No Traffic Detected on Sensor Interface"
| 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
sentinelEntitiesMappings:
- columnName: Entities
severity: High
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTINoSensorTrafficDetected.yaml
description: |
'This alert leverages Defender for IoT to detect that a sensor can no longer detect the network traffic, which indicates that the system is potentially insecure.'
triggerOperator: gt
customDetails:
VendorOriginalId: VendorOriginalId
Sensor: DeviceId
AlertManagementUri: AlertManagementUri
Protocol: Protocol
queryPeriod: 1h
requiredDataConnectors:
- dataTypes:
- SecurityAlert (ASC for IoT)
connectorId: IoT
queryFrequency: 1h
triggerThreshold: 0
tactics:
- InhibitResponseFunction
alertDetailsOverride:
alertDescriptionFormat: (MDIoT) {{Description}}
alertDynamicProperties:
- value: ProductName
alertProperty: ProductName
- value: RemediationSteps
alertProperty: RemediationSteps
- value: Techniques
alertProperty: Techniques
- value: ProductComponentName
alertProperty: ProductComponentName
- value: AlertLink
alertProperty: AlertLink
alertSeverityColumnName: AlertSeverity
alertDisplayNameFormat: (MDIoT) {{AlertName}}
alertTacticsColumnName: Tactics
query: |
SecurityAlert
| where ProviderName == "IoTSecurity"
| where AlertName == "No Traffic Detected on Sensor Interface"
| 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
status: Available
kind: Scheduled
relevantTechniques:
- T0881
version: 1.0.1
id: 208c3f5b-3ba2-49b5-9bca-c44e58cd5fd3
eventGroupingSettings:
aggregationKind: AlertPerResult
entityMappings:
name: No traffic on Sensor Detected (Microsoft Defender for IoT)
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/208c3f5b-3ba2-49b5-9bca-c44e58cd5fd3')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/208c3f5b-3ba2-49b5-9bca-c44e58cd5fd3')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "No traffic on Sensor Detected (Microsoft Defender for IoT)",
"description": "'This alert leverages Defender for IoT to detect that a sensor can no longer detect the network traffic, which indicates that the system is potentially insecure.'\n",
"severity": "High",
"enabled": true,
"query": "SecurityAlert\n| where ProviderName == \"IoTSecurity\"\n| where AlertName == \"No Traffic Detected on Sensor Interface\" \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": "PT1H",
"queryPeriod": "PT1H",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"InhibitResponseFunction"
],
"techniques": [
"T0881"
],
"alertRuleTemplateName": "208c3f5b-3ba2-49b5-9bca-c44e58cd5fd3",
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"alertDetailsOverride": {
"alertDynamicProperties": [
{
"value": "ProductName",
"alertProperty": "ProductName"
},
{
"value": "RemediationSteps",
"alertProperty": "RemediationSteps"
},
{
"value": "Techniques",
"alertProperty": "Techniques"
},
{
"value": "ProductComponentName",
"alertProperty": "ProductComponentName"
},
{
"value": "AlertLink",
"alertProperty": "AlertLink"
}
],
"alertDisplayNameFormat": "(MDIoT) {{AlertName}}",
"alertDescriptionFormat": "(MDIoT) {{Description}}",
"alertSeverityColumnName": "AlertSeverity",
"alertTacticsColumnName": "Tactics"
},
"customDetails": {
"VendorOriginalId": "VendorOriginalId",
"Sensor": "DeviceId",
"AlertManagementUri": "AlertManagementUri",
"Protocol": "Protocol"
},
"entityMappings": null,
"sentinelEntitiesMappings": [
{
"columnName": "Entities"
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTINoSensorTrafficDetected.yaml",
"templateVersion": "1.0.1",
"status": "Available"
}
}
]
}