Cyble Vision Alerts Discovered Subdomain

Alerts_subdomains  
| where Service == "subdomains" 
| extend MappedSeverity = Severity

incidentConfiguration:
  alertDetailsOverride: 
  alertDescriptionFormat: |
    A new subdomain was discovered for monitored domain/keyword. Keyword {{SD_KeywordName}} Bucket {{SD_BucketName}} Severity {{MappedSeverity}} This may represent new attack surface exposure or infrastructure expansion.
  alertDisplayNameFormat: New Subdomain Detected {{SD_Subdomain}}
  createIncident: true
  groupingConfiguration:
    lookbackDuration: PT5H
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: false
name: Cyble Vision Alerts Discovered Subdomain
triggerOperator: GreaterThan
query: |
  Alerts_subdomains  
  | where Service == "subdomains" 
  | extend MappedSeverity = Severity
queryfrequency: 30m
description: |
  'Triggers when a new subdomain is detected for a monitored keyword/domain.'
id: 7a0f79cc-8d28-44b5-ac1e-6176565bb7b8
triggerThreshold: 0
queryPeriod: 30m
enabled: true
version: 1.0.0
kind: Scheduled
customDetails:
  AlertID: AlertID
  SD_BucketName: BucketName
  SD_KeywordName: KeywordName
  SD_EntityID: EntityID
  SD_Subdomain: SD_Subdomain
  MappedSeverity: Severity
  Status: Status
  Service: Service
status: Available
eventGroupingSettings:
  aggregationKind: AlertPerResult
severity: Low
requiredDataConnectors:
- connectorId: CybleVisionAlerts
  dataTypes:
  - CybleVisionAlerts_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_subdomains_rule.yaml
relevantTechniques:
- T1595
tactics:
- Reconnaissance
entityMappings:
- fieldMappings:
  - identifier: DomainName
    columnName: SD_Subdomain
  entityType: DNS

{
  "$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/7a0f79cc-8d28-44b5-ac1e-6176565bb7b8')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/7a0f79cc-8d28-44b5-ac1e-6176565bb7b8')]",
      "properties": {
        "alertRuleTemplateName": "7a0f79cc-8d28-44b5-ac1e-6176565bb7b8",
        "customDetails": {
          "AlertID": "AlertID",
          "MappedSeverity": "Severity",
          "SD_BucketName": "BucketName",
          "SD_EntityID": "EntityID",
          "SD_KeywordName": "KeywordName",
          "SD_Subdomain": "SD_Subdomain",
          "Service": "Service",
          "Status": "Status"
        },
        "description": "'Triggers when a new subdomain is detected for a monitored keyword/domain.'\n",
        "displayName": "Cyble Vision Alerts Discovered Subdomain",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "DNS",
            "fieldMappings": [
              {
                "columnName": "SD_Subdomain",
                "identifier": "DomainName"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "alertDescriptionFormat": "A new subdomain was discovered for monitored domain/keyword. Keyword {{SD_KeywordName}} Bucket {{SD_BucketName}} Severity {{MappedSeverity}} This may represent new attack surface exposure or infrastructure expansion.\n",
          "alertDetailsOverride": null,
          "alertDisplayNameFormat": "New Subdomain Detected {{SD_Subdomain}}",
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": false,
            "lookbackDuration": "PT5H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_subdomains_rule.yaml",
        "query": "Alerts_subdomains  \n| where Service == \"subdomains\" \n| extend MappedSeverity = Severity\n",
        "queryfrequency": "PT30M",
        "queryPeriod": "PT30M",
        "severity": "Low",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Reconnaissance"
        ],
        "techniques": [
          "T1595"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}