Internet Access Microsoft Defender for IoT
Id | 9ff3b13b-287a-4ed0-8f6b-7e7b66cbbcbd |
Rulename | Internet Access (Microsoft Defender for IoT) |
Description | This alert leverages Defender for IoT to detect an OT device communicating with Internet which is possibly an indication of improper configuration of an application or malicious activity on the network. |
Severity | High |
Tactics | LateralMovement |
Techniques | T0886 |
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/IoTInternetAccess.yaml |
Version | 1.0.3 |
Arm template | 9ff3b13b-287a-4ed0-8f6b-7e7b66cbbcbd.json |
SecurityAlert
| where ProviderName == "IoTSecurity"
| where AlertName has "Internet"
| 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
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTInternetAccess.yaml
query: |
SecurityAlert
| where ProviderName == "IoTSecurity"
| where AlertName has "Internet"
| 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
description: |
'This alert leverages Defender for IoT to detect an OT device communicating with Internet which is possibly an indication of improper configuration of an application or malicious activity on the network.'
severity: High
requiredDataConnectors:
- dataTypes:
- SecurityAlert (ASC for IoT)
connectorId: IoT
sentinelEntitiesMappings:
- columnName: Entities
eventGroupingSettings:
aggregationKind: AlertPerResult
name: Internet Access (Microsoft Defender for IoT)
triggerThreshold: 0
version: 1.0.3
customDetails:
Sensor: DeviceId
Protocol: Protocol
AlertManagementUri: AlertManagementUri
VendorOriginalId: VendorOriginalId
tactics:
- LateralMovement
alertDetailsOverride:
alertSeverityColumnName: AlertSeverity
alertDescriptionFormat: (MDIoT) {{Description}}
alertDynamicProperties:
- value: ProductName
alertProperty: ProductName
- value: RemediationSteps
alertProperty: RemediationSteps
- value: Techniques
alertProperty: Techniques
- value: ProductComponentName
alertProperty: ProductComponentName
- value: AlertLink
alertProperty: AlertLink
alertDisplayNameFormat: (MDIoT) {{AlertName}}
alertTacticsColumnName: Tactics
relevantTechniques:
- T0886
triggerOperator: gt
entityMappings:
id: 9ff3b13b-287a-4ed0-8f6b-7e7b66cbbcbd
status: Available
kind: Scheduled
queryFrequency: 5m
queryPeriod: 5m
{
"$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/9ff3b13b-287a-4ed0-8f6b-7e7b66cbbcbd')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/9ff3b13b-287a-4ed0-8f6b-7e7b66cbbcbd')]",
"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": "9ff3b13b-287a-4ed0-8f6b-7e7b66cbbcbd",
"customDetails": {
"AlertManagementUri": "AlertManagementUri",
"Protocol": "Protocol",
"Sensor": "DeviceId",
"VendorOriginalId": "VendorOriginalId"
},
"description": "'This alert leverages Defender for IoT to detect an OT device communicating with Internet which is possibly an indication of improper configuration of an application or malicious activity on the network.'\n",
"displayName": "Internet Access (Microsoft Defender for IoT)",
"enabled": true,
"entityMappings": null,
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTInternetAccess.yaml",
"query": "SecurityAlert\n| where ProviderName == \"IoTSecurity\"\n| where AlertName has \"Internet\"\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": "PT5M",
"queryPeriod": "PT5M",
"sentinelEntitiesMappings": [
{
"columnName": "Entities"
}
],
"severity": "High",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"LateralMovement"
],
"techniques": null,
"templateVersion": "1.0.3",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}