Radiflow - Unauthorized Internet Access

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Id	cc33e1a9-e167-460b-93e6-f14af652dbd3
Rulename	Radiflow - Unauthorized Internet Access
Description	Generates an incident when an unauthorized link between the network and the Internet is detected by Radiflow’s iSID.
Severity	Medium
Tactics	InitialAccess Impact
Techniques	T0822 T0883 T0882
Required data connectors	RadiflowIsid
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/Radiflow/Analytic Rules/RadiflowUnauthorizedInternetAccess.yaml
Version	1.0.0
Arm template	cc33e1a9-e167-460b-93e6-f14af652dbd3.json

KQL

RadiflowEvent
| where DeviceProduct =~ 'iSID'
| where EventClassID in (55, 147, 193, 194)

YAML

requiredDataConnectors:
- dataTypes:
  - RadiflowEvent
  connectorId: RadiflowIsid
triggerThreshold: 0
version: 1.0.0
relevantTechniques:
- T0822
- T0883
- T0882
queryPeriod: 1h
alertDetailsOverride:
  alertSeverityColumnName: EventSeverity
  alertDisplayNameFormat: Unauthorized Internet Access
  alertDescriptionFormat: "An external connection to the network has been detected. Please check whether this activity is legitimate and the external device is authorized to connect.\n\nMessage: {{EventMessage}}\nSource device: {{SourceIP}} \nDestination device (if any): {{DestinationIP}} "
  alertDynamicProperties: []
eventGroupingSettings:
  aggregationKind: AlertPerResult
id: cc33e1a9-e167-460b-93e6-f14af652dbd3
suppressionEnabled: false
customDetails:
  Protocol: Protocol
  SourceMAC: SourceMACAddress
  Port: Port
  DestinationIP: DestinationIP
  DestinationMAC: DestinationMACAddress
  DestinationHostName: DestinationHostName
  SourceHostName: SourceHostName
  SourceVendor: SourceVendor
  DestinationVendor: DestinationVendor
  SourceIP: SourceIP
  SourceVLAN: SourceVLAN
  SourceType: SourceType
  DestinationType: DestinationType
incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: 1h
    matchingMethod: AllEntities
    enabled: true
    groupByCustomDetails: []
    groupByAlertDetails: []
    groupByEntities: []
    reopenClosedIncident: false
  createIncident: true
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Radiflow/Analytic Rules/RadiflowUnauthorizedInternetAccess.yaml
query: |
  RadiflowEvent
  | where DeviceProduct =~ 'iSID'
  | where EventClassID in (55, 147, 193, 194)  
status: Available
suppressionDuration: 5h
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: SourceHostName
  - identifier: NetBiosName
    columnName: SourceHostName
  entityType: Host
- fieldMappings:
  - identifier: HostName
    columnName: DestinationHostName
  - identifier: NetBiosName
    columnName: DestinationHostName
  entityType: Host
- fieldMappings:
  - identifier: Address
    columnName: SourceIP
  entityType: IP
- fieldMappings:
  - identifier: Address
    columnName: DestinationIP
  entityType: IP
tactics:
- InitialAccess
- Impact
severity: Medium
name: Radiflow - Unauthorized Internet Access
queryFrequency: 1h
triggerOperator: gt
kind: Scheduled
description: Generates an incident when an unauthorized link between the network and the Internet is detected by Radiflow's iSID.

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/cc33e1a9-e167-460b-93e6-f14af652dbd3')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/cc33e1a9-e167-460b-93e6-f14af652dbd3')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "An external connection to the network has been detected. Please check whether this activity is legitimate and the external device is authorized to connect.\n\nMessage: {{EventMessage}}\nSource device: {{SourceIP}} \nDestination device (if any): {{DestinationIP}} ",
          "alertDisplayNameFormat": "Unauthorized Internet Access",
          "alertDynamicProperties": [],
          "alertSeverityColumnName": "EventSeverity"
        },
        "alertRuleTemplateName": "cc33e1a9-e167-460b-93e6-f14af652dbd3",
        "customDetails": {
          "DestinationHostName": "DestinationHostName",
          "DestinationIP": "DestinationIP",
          "DestinationMAC": "DestinationMACAddress",
          "DestinationType": "DestinationType",
          "DestinationVendor": "DestinationVendor",
          "Port": "Port",
          "Protocol": "Protocol",
          "SourceHostName": "SourceHostName",
          "SourceIP": "SourceIP",
          "SourceMAC": "SourceMACAddress",
          "SourceType": "SourceType",
          "SourceVendor": "SourceVendor",
          "SourceVLAN": "SourceVLAN"
        },
        "description": "Generates an incident when an unauthorized link between the network and the Internet is detected by Radiflow's iSID.",
        "displayName": "Radiflow - Unauthorized Internet Access",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "SourceHostName",
                "identifier": "HostName"
              },
              {
                "columnName": "SourceHostName",
                "identifier": "NetBiosName"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "DestinationHostName",
                "identifier": "HostName"
              },
              {
                "columnName": "DestinationHostName",
                "identifier": "NetBiosName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "SourceIP",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "DestinationIP",
                "identifier": "Address"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "groupByAlertDetails": [],
            "groupByCustomDetails": [],
            "groupByEntities": [],
            "lookbackDuration": "PT1H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Radiflow/Analytic Rules/RadiflowUnauthorizedInternetAccess.yaml",
        "query": "RadiflowEvent\n| where DeviceProduct =~ 'iSID'\n| where EventClassID in (55, 147, 193, 194)\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT5H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact",
          "InitialAccess"
        ],
        "techniques": null,
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}