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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
entityMappings:
- fieldMappings:
  - columnName: DU_Description
    identifier: Url
  entityType: Url
- fieldMappings:
  - columnName: DU_DomainName
    identifier: HostName
  entityType: Host
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble%20Vision/Analytic%20Rules/Alerts_defacement_url_rule.yaml
customDetails:
  MappedSeverity: Severity
  DU_description: DU_Description
  DU_DomainName: DU_DomainName
  DU_RecordID: DU_RecordID
  DU_Type: DU_Type
  Status: Status
  Service: Service
  DU_Keywords: DU_Keywords
  AlertID: AlertID
incidentConfiguration:
  createIncident: true
  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}}
  groupingConfiguration:
    reopenClosedIncident: false
    enabled: false
    matchingMethod: AllEntities
    lookbackDuration: PT5H
  alertDetailsOverride: 
relevantTechniques:
- T1491
triggerOperator: GreaterThan
queryPeriod: 30m
severity: Low
eventGroupingSettings:
  aggregationKind: AlertPerResult
query: |
  Alerts_defacement_url  
  | where Service == "defacement_url" 
  | extend MappedSeverity = Severity
id: 1dabe566-a0f1-4c27-8307-aea5a79eb5e9
triggerThreshold: 0
requiredDataConnectors:
- connectorId: CybleVisionAlerts
  dataTypes:
  - CybleVisionAlerts_CL
queryfrequency: 30m
kind: Scheduled
status: Available
version: 1.0.0
description: |
  'Detects suspicious or unexpected changes to monitored URLs which may indicate website tampering or defacement.'
enabled: true
tactics:
- Impact
name: Cyble Vision Alerts Website Defacement URL
{
  "$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"
    }
  ]
}