Infoblox - Many High Threat Level Single Query Detected

let threshold = 200;
InfobloxCDC
| where DeviceEventClassID has_cs "RPZ"
| where ThreatLevel_Score >= 80
| summarize count() by DestinationDnsDomain
| where count_ > threshold
| join kind=inner (InfobloxCDC
  | where DeviceEventClassID has_cs "RPZ"
  | where ThreatLevel_Score >= 80
  ) on DestinationDnsDomain

relevantTechniques:
- T1498
- T1565
incidentConfiguration:
  createIncident: true
name: Infoblox - Many High Threat Level Single Query Detected
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog (InfobloxCDC)
  connectorId: InfobloxCloudDataConnector
- dataTypes:
  - CommonSecurityLog (InfobloxCDC)
  connectorId: InfobloxCloudDataConnectorAma
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma
entityMappings:
- fieldMappings:
  - identifier: DomainName
    columnName: DestinationDnsDomain
  entityType: DNS
- fieldMappings:
  - identifier: Name
    columnName: ThreatProperty
  - identifier: Category
    columnName: ThreatClass
  entityType: Malware
triggerThreshold: 0
id: 99278700-79ca-4b0f-b416-bf57ec699e1a
tactics:
- Impact
version: 1.0.3
customDetails:
  InfobloxB1Network: InfobloxB1Network
  InfobloxB1PolicyName: InfobloxB1PolicyName
  InfobloxB1FeedName: InfobloxB1FeedName
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-ManyHighThreatLevelSingleQueryDetected.yaml
queryPeriod: 1h
kind: Scheduled
eventGroupingSettings:
  aggregationKind: SingleAlert
queryFrequency: 1h
severity: Medium
status: Available
description: |
    'Single high threat level domain queried at least 200 times in 1 hour regardless of source. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called [**InfobloxCDC**](https://aka.ms/sentinel-InfobloxCloudDataConnector-parser).'
query: |
  let threshold = 200;
  InfobloxCDC
  | where DeviceEventClassID has_cs "RPZ"
  | where ThreatLevel_Score >= 80
  | summarize count() by DestinationDnsDomain
  | where count_ > threshold
  | join kind=inner (InfobloxCDC
    | where DeviceEventClassID has_cs "RPZ"
    | where ThreatLevel_Score >= 80
    ) on DestinationDnsDomain  
triggerOperator: gt

{
  "$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/99278700-79ca-4b0f-b416-bf57ec699e1a')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/99278700-79ca-4b0f-b416-bf57ec699e1a')]",
      "properties": {
        "alertRuleTemplateName": "99278700-79ca-4b0f-b416-bf57ec699e1a",
        "customDetails": {
          "InfobloxB1FeedName": "InfobloxB1FeedName",
          "InfobloxB1Network": "InfobloxB1Network",
          "InfobloxB1PolicyName": "InfobloxB1PolicyName"
        },
        "description": "'Single high threat level domain queried at least 200 times in 1 hour regardless of source. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called [**InfobloxCDC**](https://aka.ms/sentinel-InfobloxCloudDataConnector-parser).'\n",
        "displayName": "Infoblox - Many High Threat Level Single Query Detected",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "DNS",
            "fieldMappings": [
              {
                "columnName": "DestinationDnsDomain",
                "identifier": "DomainName"
              }
            ]
          },
          {
            "entityType": "Malware",
            "fieldMappings": [
              {
                "columnName": "ThreatProperty",
                "identifier": "Name"
              },
              {
                "columnName": "ThreatClass",
                "identifier": "Category"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "incidentConfiguration": {
          "createIncident": true
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-ManyHighThreatLevelSingleQueryDetected.yaml",
        "query": "let threshold = 200;\nInfobloxCDC\n| where DeviceEventClassID has_cs \"RPZ\"\n| where ThreatLevel_Score >= 80\n| summarize count() by DestinationDnsDomain\n| where count_ > threshold\n| join kind=inner (InfobloxCDC\n  | where DeviceEventClassID has_cs \"RPZ\"\n  | where ThreatLevel_Score >= 80\n  ) on DestinationDnsDomain\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1498",
          "T1565"
        ],
        "templateVersion": "1.0.3",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}