Cloudflare - Client request from country in blocklist

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Id	40554544-6e4a-4413-8d14-bf2de939c5d9
Rulename	Cloudflare - Client request from country in blocklist
Description	Detects requests from countries which are in blocklist.
Severity	Medium
Tactics	InitialAccess
Techniques	T1190 T1133
Required data connectors	CloudflareDataConnector
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cloudflare/Analytic Rules/CloudflareUnexpectedCountry.yaml
Version	1.0.1
Arm template	40554544-6e4a-4413-8d14-bf2de939c5d9.json

KQL

let bl_countries = dynamic(['cn', 'hk']);
Cloudflare
| where SrcGeoCountry in~ (bl_countries)
| extend CompleteUrl = strcat(HttpRequestHeaderHost,ClientRequestPath)

YAML

OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cloudflare/Analytic Rules/CloudflareUnexpectedCountry.yaml
queryFrequency: 1h
name: Cloudflare - Client request from country in blocklist
severity: Medium
triggerThreshold: 0
query: |
  let bl_countries = dynamic(['cn', 'hk']);
  Cloudflare
  | where SrcGeoCountry in~ (bl_countries)
  | extend CompleteUrl = strcat(HttpRequestHeaderHost,ClientRequestPath)  
requiredDataConnectors:
- dataTypes:
  - Cloudflare
  connectorId: CloudflareDataConnector
relevantTechniques:
- T1190
- T1133
status: Available
triggerOperator: gt
queryPeriod: 1h
description: |
    'Detects requests from countries which are in blocklist.'
id: 40554544-6e4a-4413-8d14-bf2de939c5d9
version: 1.0.1
entityMappings:
- fieldMappings:
  - columnName: SrcIpAddr
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: CompleteUrl
    identifier: Url
  entityType: URL
kind: Scheduled
tactics:
- InitialAccess

ARM