Corelight - Possible Typo Squatting or Punycode Phishing HTTP Request

corelight_http
| where method =~ 'GET'
| where isempty(referrer)
| where host has 'xn--'

kind: Scheduled
relevantTechniques:
- T1566
description: |
    'Detects when an HTTP request was made to a domain that was using unicode/punycode.'
queryPeriod: 1h
queryFrequency: 1h
tactics:
- InitialAccess
name: Corelight - Possible Typo Squatting or Punycode Phishing HTTP Request
requiredDataConnectors:
- connectorId: Corelight
  dataTypes:
  - Corelight_v2_http
  - corelight_http
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: id_orig_h
triggerThreshold: 0
version: 2.1.0
id: 6b579e98-abc9-4e7a-9efc-2f3408ba16c9
query: |
  corelight_http
  | where method =~ 'GET'
  | where isempty(referrer)
  | where host has 'xn--'  
status: Available
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Corelight/Analytic Rules/CorelightTypoSquattingOrPunycodePhishingHTTPRequest.yaml
severity: Medium

{
  "$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/6b579e98-abc9-4e7a-9efc-2f3408ba16c9')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/6b579e98-abc9-4e7a-9efc-2f3408ba16c9')]",
      "properties": {
        "alertRuleTemplateName": "6b579e98-abc9-4e7a-9efc-2f3408ba16c9",
        "customDetails": null,
        "description": "'Detects when an HTTP request was made to a domain that was using unicode/punycode.'\n",
        "displayName": "Corelight - Possible Typo Squatting or Punycode Phishing HTTP Request",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "id_orig_h",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Corelight/Analytic Rules/CorelightTypoSquattingOrPunycodePhishingHTTPRequest.yaml",
        "query": "corelight_http\n| where method =~ 'GET'\n| where isempty(referrer)\n| where host has 'xn--'\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1566"
        ],
        "templateVersion": "2.1.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}