API - Invalid host access

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Id	28500be7-cfcf-40e1-bad4-bc524e9283e2
Rulename	API - Invalid host access
Description	42Crunch API protection against invalid host access
Severity	Low
Tactics	Reconnaissance
Techniques	T1592
Required data connectors	42CrunchAPIProtection
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/42Crunch API Protection/Analytic Rules/APIInvalidHostAccess.yaml
Version	1.0.1
Arm template	28500be7-cfcf-40e1-bad4-bc524e9283e2.json

KQL

apifirewall_log_1_CL 
| where TimeGenerated >= ago(5m) 
| where Error_Step_s has "hostpath_mapping" 
| project-away Non_blocking_mode_b, Source_Port_d, Destination_Port_d, Query_s, API_ID_g, Response_Header_s, Request_Header_s, Errors_s, Type, UUID_g 
| sort by TimeGenerated desc

YAML

name: API - Invalid host access
severity: Low
description: |
    '42Crunch API protection against invalid host access'
version: 1.0.1
customDetails: 
requiredDataConnectors:
- dataTypes:
  - apifirewall_log_1_CL
  connectorId: 42CrunchAPIProtection
tactics:
- Reconnaissance
relevantTechniques:
- T1592
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: Source_IP_s
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: Hostname_s
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: Instance_Name_s
triggerThreshold: 0
status: Available
queryPeriod: 5m
kind: Scheduled
triggerOperator: gt
query: |
  apifirewall_log_1_CL 
  | where TimeGenerated >= ago(5m) 
  | where Error_Step_s has "hostpath_mapping" 
  | project-away Non_blocking_mode_b, Source_Port_d, Destination_Port_d, Query_s, API_ID_g, Response_Header_s, Request_Header_s, Errors_s, Type, UUID_g 
  | sort by TimeGenerated desc   
eventGroupingSettings:
  aggregationKind: SingleAlert
queryFrequency: 5m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/42Crunch API Protection/Analytic Rules/APIInvalidHostAccess.yaml
id: 28500be7-cfcf-40e1-bad4-bc524e9283e2

ARM