Cloudflare - Client request from country in blocklist

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Id	40554544-6e4a-4413-8d14-bf2de939c5d0
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 CCF/Analytic Rules/CloudflareCCFUnexpectedCountry.yaml
Version	1.0.1
Arm template	40554544-6e4a-4413-8d14-bf2de939c5d0.json

KQL

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

YAML

description: |
    'Detects requests from countries which are in blocklist.'
kind: Scheduled
queryFrequency: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cloudflare CCF/Analytic Rules/CloudflareCCFUnexpectedCountry.yaml
status: Available
triggerOperator: gt
severity: Medium
relevantTechniques:
- T1190
- T1133
triggerThreshold: 0
name: Cloudflare - Client request from country in blocklist
entityMappings:
- fieldMappings:
  - columnName: SrcIpAddr
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: CompleteUrl
    identifier: Url
  entityType: URL
requiredDataConnectors:
- connectorId: CloudflareDataConnector
  dataTypes:
  - Cloudflare
id: 40554544-6e4a-4413-8d14-bf2de939c5d0
queryPeriod: 1h
tactics:
- InitialAccess
version: 1.0.1
query: |
  let bl_countries = dynamic(['cn', 'hk']);
  Cloudflare
  | where SrcGeoCountry in~ (bl_countries)
  | extend CompleteUrl = strcat(HttpRequestHeaderHost,ClientRequestPath)

ARM