UniFi Site Manager Device Offline

// UniFi Device Offline Detection
Unifi_SiteManager_Devices_CL
| where TimeGenerated > ago(1h)
| summarize arg_max(TimeGenerated, *) by Id
| where Status == "offline"
| extend OfflineMinutes = datetime_diff('minute', now(), TimeGenerated)
| where OfflineMinutes >= 10
| extend
    DeviceName = coalesce(Name, "Unnamed"),
    DeviceId = Id,
    Model = Model,
    IPAddress = Ip,
    MACAddress = Mac,
    ProductLine = ProductLine,
    FirmwareVersion = Version
| extend HostName = DeviceName
| project
    TimeGenerated,
    DeviceName,
    DeviceId,
    Model,
    IPAddress,
    MACAddress,
    ProductLine,
    Status = Status,
    OfflineMinutes,
    FirmwareVersion,
    HostName

subTechniques: []
incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: PT4H
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: true
  createIncident: true
name: 'UniFi Site Manager: Device Offline'
triggerOperator: gt
query: |
  // UniFi Device Offline Detection
  Unifi_SiteManager_Devices_CL
  | where TimeGenerated > ago(1h)
  | summarize arg_max(TimeGenerated, *) by Id
  | where Status == "offline"
  | extend OfflineMinutes = datetime_diff('minute', now(), TimeGenerated)
  | where OfflineMinutes >= 10
  | extend
      DeviceName = coalesce(Name, "Unnamed"),
      DeviceId = Id,
      Model = Model,
      IPAddress = Ip,
      MACAddress = Mac,
      ProductLine = ProductLine,
      FirmwareVersion = Version
  | extend HostName = DeviceName
  | project
      TimeGenerated,
      DeviceName,
      DeviceId,
      Model,
      IPAddress,
      MACAddress,
      ProductLine,
      Status = Status,
      OfflineMinutes,
      FirmwareVersion,
      HostName
queryFrequency: 15m
description: |
  Identifies when a UniFi device transitions to offline status, which may indicate a network outage, power loss, or hardware failure requiring attention.
id: f3fa4f3f-c8db-ae35-ee06-04de2dfac511
triggerThreshold: 0
queryPeriod: 1h
version: 1.0.0
kind: Scheduled
status: Available
severity: Medium
requiredDataConnectors:
- connectorId: UniFiSiteManagerConnectorDefinition
  dataTypes:
  - Unifi_SiteManager_Devices_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/UniFi%20Site%20Manager%20%28CCF%29/Analytic%20Rules/UniFiCloudDeviceOffline.yaml
relevantTechniques:
- T1489
tactics:
- Impact
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: HostName
  entityType: Host
- fieldMappings:
  - identifier: Address
    columnName: IPAddress
  entityType: IP

{
  "$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/f3fa4f3f-c8db-ae35-ee06-04de2dfac511')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/f3fa4f3f-c8db-ae35-ee06-04de2dfac511')]",
      "properties": {
        "alertRuleTemplateName": "f3fa4f3f-c8db-ae35-ee06-04de2dfac511",
        "customDetails": null,
        "description": "Identifies when a UniFi device transitions to offline status, which may indicate a network outage, power loss, or hardware failure requiring attention.\n",
        "displayName": "UniFi Site Manager: Device Offline",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostName",
                "identifier": "HostName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPAddress",
                "identifier": "Address"
              }
            ]
          }
        ],
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "lookbackDuration": "PT4H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/UniFi%20Site%20Manager%20%28CCF%29/Analytic%20Rules/UniFiCloudDeviceOffline.yaml",
        "query": "// UniFi Device Offline Detection\nUnifi_SiteManager_Devices_CL\n| where TimeGenerated > ago(1h)\n| summarize arg_max(TimeGenerated, *) by Id\n| where Status == \"offline\"\n| extend OfflineMinutes = datetime_diff('minute', now(), TimeGenerated)\n| where OfflineMinutes >= 10\n| extend\n    DeviceName = coalesce(Name, \"Unnamed\"),\n    DeviceId = Id,\n    Model = Model,\n    IPAddress = Ip,\n    MACAddress = Mac,\n    ProductLine = ProductLine,\n    FirmwareVersion = Version\n| extend HostName = DeviceName\n| project\n    TimeGenerated,\n    DeviceName,\n    DeviceId,\n    Model,\n    IPAddress,\n    MACAddress,\n    ProductLine,\n    Status = Status,\n    OfflineMinutes,\n    FirmwareVersion,\n    HostName\n",
        "queryFrequency": "PT15M",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1489"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}