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Id1dabe566-a0f1-4c27-8307-aea5a79eb5e9
RulenameCyble Vision Alerts Website Defacement URL
DescriptionDetects suspicious or unexpected changes to monitored URLs which may indicate website tampering or defacement.
SeverityLow
TacticsImpact
TechniquesT1491
Required data connectorsCybleVisionAlerts
KindScheduled
Query frequency30m
Query period30m
Trigger threshold0
Trigger operatorGreaterThan
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_defacement_url_rule.yaml
Version1.0.0
Arm template1dabe566-a0f1-4c27-8307-aea5a79eb5e9.json
Deploy To Azure
Alerts_defacement_url  
| where Service == "defacement_url" 
| extend MappedSeverity = Severity
incidentConfiguration:
  alertDetailsOverride: 
  alertDescriptionFormat: |
    A monitored URL for domain {{DU_DomainName}} has changed {{DU_Description}}. This may indicate unauthorized modification consistent with website defacement activity.
  alertDisplayNameFormat: URL Content Change Detected {{DU_DomainName}}
  createIncident: true
  groupingConfiguration:
    lookbackDuration: PT5H
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: false
name: Cyble Vision Alerts Website Defacement URL
triggerOperator: GreaterThan
query: |
  Alerts_defacement_url  
  | where Service == "defacement_url" 
  | extend MappedSeverity = Severity
queryfrequency: 30m
description: |
  'Detects suspicious or unexpected changes to monitored URLs which may indicate website tampering or defacement.'
id: 1dabe566-a0f1-4c27-8307-aea5a79eb5e9
triggerThreshold: 0
queryPeriod: 30m
enabled: true
version: 1.0.0
kind: Scheduled
customDetails:
  DU_RecordID: DU_RecordID
  AlertID: AlertID
  Service: Service
  DU_DomainName: DU_DomainName
  DU_Type: DU_Type
  DU_Keywords: DU_Keywords
  MappedSeverity: Severity
  Status: Status
  DU_description: DU_Description
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_defacement_url_rule.yaml
relevantTechniques:
- T1491
tactics:
- Impact
entityMappings:
- fieldMappings:
  - identifier: Url
    columnName: DU_Description
  entityType: Url
- fieldMappings:
  - identifier: HostName
    columnName: DU_DomainName
  entityType: Host
{
  "$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/1dabe566-a0f1-4c27-8307-aea5a79eb5e9')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/1dabe566-a0f1-4c27-8307-aea5a79eb5e9')]",
      "properties": {
        "alertRuleTemplateName": "1dabe566-a0f1-4c27-8307-aea5a79eb5e9",
        "customDetails": {
          "AlertID": "AlertID",
          "DU_description": "DU_Description",
          "DU_DomainName": "DU_DomainName",
          "DU_Keywords": "DU_Keywords",
          "DU_RecordID": "DU_RecordID",
          "DU_Type": "DU_Type",
          "MappedSeverity": "Severity",
          "Service": "Service",
          "Status": "Status"
        },
        "description": "'Detects suspicious or unexpected changes to monitored URLs which may indicate website tampering or defacement.'\n",
        "displayName": "Cyble Vision Alerts Website Defacement URL",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Url",
            "fieldMappings": [
              {
                "columnName": "DU_Description",
                "identifier": "Url"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "DU_DomainName",
                "identifier": "HostName"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "alertDescriptionFormat": "A monitored URL for domain {{DU_DomainName}} has changed {{DU_Description}}. This may indicate unauthorized modification consistent with website defacement activity.\n",
          "alertDetailsOverride": null,
          "alertDisplayNameFormat": "URL Content Change Detected {{DU_DomainName}}",
          "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_defacement_url_rule.yaml",
        "query": "Alerts_defacement_url  \n| where Service == \"defacement_url\" \n| extend MappedSeverity = Severity\n",
        "queryfrequency": "PT30M",
        "queryPeriod": "PT30M",
        "severity": "Low",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1491"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}