Cloudflare - Bad client IP

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Id	a7ce6135-9d55-4f14-b058-adc2e920a4fa
Rulename	Cloudflare - Bad client IP
Description	Detects requests from IP with bad reputation index.
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/CloudflareBadClientIp.yaml
Version	1.0.0
Arm template	a7ce6135-9d55-4f14-b058-adc2e920a4fa.json

KQL

let ip_reputation = dynamic(['unknown', 'badHost', 'greylist', 'securityScanner', 'scan', 'tor']);
Cloudflare
| where ClientIPClass in~ (ip_reputation)
| extend IPCustomEntity = SrcIpAddr
| extend UrlCustomEntity = ClientRequestURI

YAML

description: |
    'Detects requests from IP with bad reputation index.'
kind: Scheduled
tactics:
- InitialAccess
requiredDataConnectors:
- connectorId: CloudflareDataConnector
  dataTypes:
  - Cloudflare
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cloudflare/Analytic Rules/CloudflareBadClientIp.yaml
severity: Medium
name: Cloudflare - Bad client IP
triggerThreshold: 0
queryPeriod: 1h
query: |
  let ip_reputation = dynamic(['unknown', 'badHost', 'greylist', 'securityScanner', 'scan', 'tor']);
  Cloudflare
  | where ClientIPClass in~ (ip_reputation)
  | extend IPCustomEntity = SrcIpAddr
  | extend UrlCustomEntity = ClientRequestURI  
relevantTechniques:
- T1190
- T1133
id: a7ce6135-9d55-4f14-b058-adc2e920a4fa
queryFrequency: 1h
status: Available
triggerOperator: gt
version: 1.0.0
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
- entityType: URL
  fieldMappings:
  - columnName: UrlCustomEntity
    identifier: Url

ARM