UniFi Site Manager Sites with persistent WAN issues

Unifi_SiteManager_Sites_CL
| where TimeGenerated > ago(24h)
| extend Site = tostring(Meta.name),
         IssueCount = array_length(parse_json(tostring(SiteStatistics.wans.WAN.wanIssues)))
| summarize TotalPolls = count(),
            PollsWithIssues = countif(IssueCount > 0) by HostName = Site
| extend ['Issue rate %'] = round(100.0 * PollsWithIssues / TotalPolls, 1)
| where ['Issue rate %'] > 50 and TotalPolls > 12
| order by ['Issue rate %'] desc

id: 2dbe3bb8-1522-e491-2eac-72bb0923c5eb
requiredDataConnectors:
- connectorId: UniFiSiteManagerConnectorDefinition
  dataTypes:
  - Unifi_SiteManager_Sites_CL
description: |
  Sites that have recorded WAN issues in the majority of polls over the last 24 hours. Indicates chronic ISP problems versus transient blips - escalate to provider.
name: 'UniFi Site Manager: Sites with persistent WAN issues'
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/UniFi%20Site%20Manager%20%28CCF%29/Hunting%20Queries/UniFiCloudPersistentWANIssues.yaml
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: HostName
  entityType: Host
tactics:
- Impact
kind: HuntingQuery
relevantTechniques:
- T1498
query: |
  Unifi_SiteManager_Sites_CL
  | where TimeGenerated > ago(24h)
  | extend Site = tostring(Meta.name),
           IssueCount = array_length(parse_json(tostring(SiteStatistics.wans.WAN.wanIssues)))
  | summarize TotalPolls = count(),
              PollsWithIssues = countif(IssueCount > 0) by HostName = Site
  | extend ['Issue rate %'] = round(100.0 * PollsWithIssues / TotalPolls, 1)
  | where ['Issue rate %'] > 50 and TotalPolls > 12
  | order by ['Issue rate %'] desc

{
  "$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/2dbe3bb8-1522-e491-2eac-72bb0923c5eb')]",
      "kind": "Huntingquery",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/2dbe3bb8-1522-e491-2eac-72bb0923c5eb')]",
      "properties": {
        "alertRuleTemplateName": "2dbe3bb8-1522-e491-2eac-72bb0923c5eb",
        "customDetails": null,
        "description": "Sites that have recorded WAN issues in the majority of polls over the last 24 hours. Indicates chronic ISP problems versus transient blips - escalate to provider.\n",
        "displayName": "UniFi Site Manager: Sites with persistent WAN issues",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostName",
                "identifier": "HostName"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/UniFi%20Site%20Manager%20%28CCF%29/Hunting%20Queries/UniFiCloudPersistentWANIssues.yaml",
        "query": "Unifi_SiteManager_Sites_CL\n| where TimeGenerated > ago(24h)\n| extend Site = tostring(Meta.name),\n         IssueCount = array_length(parse_json(tostring(SiteStatistics.wans.WAN.wanIssues)))\n| summarize TotalPolls = count(),\n            PollsWithIssues = countif(IssueCount > 0) by HostName = Site\n| extend ['Issue rate %'] = round(100.0 * PollsWithIssues / TotalPolls, 1)\n| where ['Issue rate %'] > 50 and TotalPolls > 12\n| order by ['Issue rate %'] desc\n",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1498"
        ],
        "templateVersion": "1.0.0"
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}