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