Suspicious malware found in the network Microsoft Defender for IoT

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Id	6fb1acd5-356d-40f7-9b97-78d993c6a183
Rulename	Suspicious malware found in the network (Microsoft Defender for IoT)
Description	This alert leverages Defender for IoT to detect IoT/OT malware found on the network indicating possible attempts to compromise production systems.
Severity	High
Tactics	Impact
Techniques	T0882
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/IoTMalware.yaml
Version	1.0.3
Arm template	6fb1acd5-356d-40f7-9b97-78d993c6a183.json

KQL

let alertList = dynamic(["Malware", "Suspicion of Malicious Activity", "Invalid SMB Message (DoublePulsar Backdoor Implant)", "Connection Attempt to Known Malicious IP", "Malicious Domain Name Request", "Suspicion of Remote Code Execution with PsExec", "Suspicion of Remote Windows Service Management", "Suspicious Executable File Detected on Endpoint", "Suspicious Traffic Detected"]);
SecurityAlert
| where ProviderName == "IoTSecurity"
| where AlertName has_any (alertList) 
| 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

queryFrequency: 5m
eventGroupingSettings:
  aggregationKind: AlertPerResult
requiredDataConnectors:
- connectorId: IoT
  dataTypes:
  - SecurityAlert (ASC for IoT)
alertDetailsOverride:
  alertDynamicProperties:
  - value: ProductName
    alertProperty: ProductName
  - value: RemediationSteps
    alertProperty: RemediationSteps
  - value: Techniques
    alertProperty: Techniques
  - value: ProductComponentName
    alertProperty: ProductComponentName
  - value: AlertLink
    alertProperty: AlertLink
  alertSeverityColumnName: AlertSeverity
  alertDescriptionFormat: (MDIoT) {{Description}}
  alertDisplayNameFormat: (MDIoT) {{AlertName}}
  alertTacticsColumnName: Tactics
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTMalware.yaml
query: |
  let alertList = dynamic(["Malware", "Suspicion of Malicious Activity", "Invalid SMB Message (DoublePulsar Backdoor Implant)", "Connection Attempt to Known Malicious IP", "Malicious Domain Name Request", "Suspicion of Remote Code Execution with PsExec", "Suspicion of Remote Windows Service Management", "Suspicious Executable File Detected on Endpoint", "Suspicious Traffic Detected"]);
  SecurityAlert
  | where ProviderName == "IoTSecurity"
  | where AlertName has_any (alertList) 
  | 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: 
relevantTechniques:
- T0882
name: Suspicious malware found in the network (Microsoft Defender for IoT)
description: |
    'This alert leverages Defender for IoT to detect IoT/OT malware found on the network indicating possible attempts to compromise production systems.'
severity: High
queryPeriod: 5m
sentinelEntitiesMappings:
- columnName: Entities
triggerOperator: gt
customDetails:
  VendorOriginalId: VendorOriginalId
  Protocol: Protocol
  AlertManagementUri: AlertManagementUri
  Sensor: DeviceId
kind: Scheduled
status: Available
tactics:
- Impact
id: 6fb1acd5-356d-40f7-9b97-78d993c6a183
version: 1.0.3
triggerThreshold: 0

ARM

{
  "$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/6fb1acd5-356d-40f7-9b97-78d993c6a183')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/6fb1acd5-356d-40f7-9b97-78d993c6a183')]",
      "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": "6fb1acd5-356d-40f7-9b97-78d993c6a183",
        "customDetails": {
          "AlertManagementUri": "AlertManagementUri",
          "Protocol": "Protocol",
          "Sensor": "DeviceId",
          "VendorOriginalId": "VendorOriginalId"
        },
        "description": "'This alert leverages Defender for IoT to detect IoT/OT malware found on the network indicating possible attempts to compromise production systems.'\n",
        "displayName": "Suspicious malware found in the network (Microsoft Defender for IoT)",
        "enabled": true,
        "entityMappings": null,
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IoTOTThreatMonitoringwithDefenderforIoT/Analytic Rules/IoTMalware.yaml",
        "query": "let alertList = dynamic([\"Malware\", \"Suspicion of Malicious Activity\", \"Invalid SMB Message (DoublePulsar Backdoor Implant)\", \"Connection Attempt to Known Malicious IP\", \"Malicious Domain Name Request\", \"Suspicion of Remote Code Execution with PsExec\", \"Suspicion of Remote Windows Service Management\", \"Suspicious Executable File Detected on Endpoint\", \"Suspicious Traffic Detected\"]);\nSecurityAlert\n| where ProviderName == \"IoTSecurity\"\n| where AlertName has_any (alertList) \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": [
          "Impact"
        ],
        "techniques": null,
        "templateVersion": "1.0.3",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}