Microsoft Sentinel Analytic Rules
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Cloudflare - Client request from country in blocklist

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Id40554544-6e4a-4413-8d14-bf2de939c5d9
RulenameCloudflare - Client request from country in blocklist
DescriptionDetects requests from countries which are in blocklist.
SeverityMedium
TacticsInitialAccess
TechniquesT1190
T1133
Required data connectorsCloudflareDataConnector
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cloudflare/Analytic Rules/CloudflareUnexpectedCountry.yaml
Version1.0.0
Arm template40554544-6e4a-4413-8d14-bf2de939c5d9.json
Deploy To Azure
let bl_countries = dynamic(['cn', 'hk']);
Cloudflare
| where SrcGeoCountry in~ (bl_countries)
| extend IPCustomEntity = SrcIpAddr
| extend UrlCustomEntity = ClientRequestURI
id: 40554544-6e4a-4413-8d14-bf2de939c5d9
triggerOperator: gt
status: Available
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
  entityType: IP
- fieldMappings:
  - identifier: Url
    columnName: UrlCustomEntity
  entityType: URL
description: |
    'Detects requests from countries which are in blocklist.'
severity: Medium
version: 1.0.0
relevantTechniques:
- T1190
- T1133
tactics:
- InitialAccess
name: Cloudflare - Client request from country in blocklist
queryFrequency: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cloudflare/Analytic Rules/CloudflareUnexpectedCountry.yaml
query: |
  let bl_countries = dynamic(['cn', 'hk']);
  Cloudflare
  | where SrcGeoCountry in~ (bl_countries)
  | extend IPCustomEntity = SrcIpAddr
  | extend UrlCustomEntity = ClientRequestURI  
kind: Scheduled
triggerThreshold: 0
requiredDataConnectors:
- dataTypes:
  - Cloudflare
  connectorId: CloudflareDataConnector
queryPeriod: 1h
{
  "$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/40554544-6e4a-4413-8d14-bf2de939c5d9')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/40554544-6e4a-4413-8d14-bf2de939c5d9')]",
      "properties": {
        "alertRuleTemplateName": "40554544-6e4a-4413-8d14-bf2de939c5d9",
        "customDetails": null,
        "description": "'Detects requests from countries which are in blocklist.'\n",
        "displayName": "Cloudflare - Client request from country in blocklist",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "UrlCustomEntity",
                "identifier": "Url"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cloudflare/Analytic Rules/CloudflareUnexpectedCountry.yaml",
        "query": "let bl_countries = dynamic(['cn', 'hk']);\nCloudflare\n| where SrcGeoCountry in~ (bl_countries)\n| extend IPCustomEntity = SrcIpAddr\n| extend UrlCustomEntity = ClientRequestURI\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1133",
          "T1190"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}