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

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

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"
    }
  ]
}