Google DNS - Multiple errors for source

let threshold = 10;
let err = dynamic(['NXDOMAIN', 'SERVFAIL', 'REFUSED']);
GCPCloudDNS
| where EventResultDetails in~ (err)
| summarize count() by SrcIpAddr, bin(TimeGenerated, 10m)
| where count_ > threshold
| extend IPCustomEntity = SrcIpAddr

tactics:
- CommandAndControl
severity: Medium
requiredDataConnectors:
- connectorId: GCPDNSDataConnector
  dataTypes:
  - GCPCloudDNS
triggerOperator: gt
query: |
  let threshold = 10;
  let err = dynamic(['NXDOMAIN', 'SERVFAIL', 'REFUSED']);
  GCPCloudDNS
  | where EventResultDetails in~ (err)
  | summarize count() by SrcIpAddr, bin(TimeGenerated, 10m)
  | where count_ > threshold
  | extend IPCustomEntity = SrcIpAddr  
triggerThreshold: 0
name: Google DNS - Multiple errors for source
kind: Scheduled
version: 1.0.0
relevantTechniques:
- T1095
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformDNS/Analytic Rules/GCPDNSMultipleErrorsFromIp.yaml
description: |
    'Detects multiple errors for the same source IP address.'
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
queryFrequency: 1h
queryPeriod: 1h
id: 7e81a935-5e91-45a5-92fd-3b58c180513b

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/7e81a935-5e91-45a5-92fd-3b58c180513b')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/7e81a935-5e91-45a5-92fd-3b58c180513b')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "Google DNS - Multiple errors for source",
        "description": "'Detects multiple errors for the same source IP address.'\n",
        "severity": "Medium",
        "enabled": true,
        "query": "let threshold = 10;\nlet err = dynamic(['NXDOMAIN', 'SERVFAIL', 'REFUSED']);\nGCPCloudDNS\n| where EventResultDetails in~ (err)\n| summarize count() by SrcIpAddr, bin(TimeGenerated, 10m)\n| where count_ > threshold\n| extend IPCustomEntity = SrcIpAddr\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl"
        ],
        "techniques": [
          "T1095"
        ],
        "alertRuleTemplateName": "7e81a935-5e91-45a5-92fd-3b58c180513b",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ],
            "entityType": "IP"
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformDNS/Analytic Rules/GCPDNSMultipleErrorsFromIp.yaml",
        "templateVersion": "1.0.0"
      }
    }
  ]
}