VTI - High Severity Domain Collision Detection

EmailUrlInfo
| join kind=inner (VisaThreatIntelligenceIOC_CL  | where IOCType == "domain" and SourceSeverity == "High")
on $left.UrlDomain == $right.Value

entityMappings:
- entityType: URL
  fieldMappings:
  - identifier: Url
    columnName: Url
- entityType: DNS
  fieldMappings:
  - identifier: DomainName
    columnName: UrlDomain
name: VTI - High Severity Domain Collision Detection
queryFrequency: 1h
triggerOperator: gt
suppressionEnabled: false
suppressionDuration: 1h
queryPeriod: 1h
requiredDataConnectors:
- connectorId: VisaThreatIntelligence
  dataTypes:
  - VisaThreatIntelligenceIOC_CL
  - EmailUrlInfo
tactics:
- InitialAccess
query: |-
  EmailUrlInfo
  | join kind=inner (VisaThreatIntelligenceIOC_CL  | where IOCType == "domain" and SourceSeverity == "High")
  on $left.UrlDomain == $right.Value
description: This will alert when a collision is detected for EmailUrlInfo events with VTI high severity domain IoCs
severity: High
incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: 1h
    enabled: true
    reopenClosedIncident: false
    matchingMethod: AllEntities
  createIncident: true
kind: Scheduled
eventGroupingSettings:
  aggregationKind: SingleAlert
triggerThreshold: 0
id: 7be47078-657a-43cf-9c93-b4705a9f6134
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Visa%20Threat%20Intelligence%20%28VTI%29/Analytic%20Rules/VTIP_high_severity_domain.yaml
version: 1.0.0
relevantTechniques:
- T1566

{
  "$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/7be47078-657a-43cf-9c93-b4705a9f6134')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/7be47078-657a-43cf-9c93-b4705a9f6134')]",
      "properties": {
        "alertRuleTemplateName": "7be47078-657a-43cf-9c93-b4705a9f6134",
        "customDetails": null,
        "description": "This will alert when a collision is detected for EmailUrlInfo events with VTI high severity domain IoCs",
        "displayName": "VTI - High Severity Domain Collision Detection",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "Url",
                "identifier": "Url"
              }
            ]
          },
          {
            "entityType": "DNS",
            "fieldMappings": [
              {
                "columnName": "UrlDomain",
                "identifier": "DomainName"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "lookbackDuration": "PT1H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Visa%20Threat%20Intelligence%20%28VTI%29/Analytic%20Rules/VTIP_high_severity_domain.yaml",
        "query": "EmailUrlInfo\n| join kind=inner (VisaThreatIntelligenceIOC_CL  | where IOCType == \"domain\" and SourceSeverity == \"High\")\non $left.UrlDomain == $right.Value",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1566"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}