Cloudflare - Empty user agent

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Id	729c6d21-fad9-4a6a-9c7f-482393c95958
Rulename	Cloudflare - Empty user agent
Description	Detects requests where user agent is empty.
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/CloudflareCCFEmptyUA.yaml
Version	1.0.1
Arm template	729c6d21-fad9-4a6a-9c7f-482393c95958.json

KQL

Cloudflare
| where isempty(HttpUserAgentOriginal)

YAML

OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cloudflare CCF/Analytic Rules/CloudflareCCFEmptyUA.yaml
queryFrequency: 1h
name: Cloudflare - Empty user agent
severity: Medium
triggerThreshold: 0
query: |
  Cloudflare
  | where isempty(HttpUserAgentOriginal)  
requiredDataConnectors:
- dataTypes:
  - Cloudflare
  connectorId: CloudflareDataConnector
relevantTechniques:
- T1190
- T1133
status: Available
triggerOperator: gt
queryPeriod: 1h
description: |
    'Detects requests where user agent is empty.'
id: 729c6d21-fad9-4a6a-9c7f-482393c95958
version: 1.0.1
entityMappings:
- fieldMappings:
  - columnName: SrcIpAddr
    identifier: Address
  entityType: IP
kind: Scheduled
tactics:
- InitialAccess

ARM