Tomcat - Request to sensitive files

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Id	0c851bd4-4875-11ec-81d3-0242ac130003
Rulename	Tomcat - Request to sensitive files
Description	Detects request to sensitive files.
Severity	High
Tactics	InitialAccess
Techniques	T1189
Required data connectors	CustomLogsAma
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/Tomcat/Analytic Rules/TomcatRequestSensitiveFiles.yaml
Version	1.0.2
Arm template	0c851bd4-4875-11ec-81d3-0242ac130003.json

KQL

let forbidden_files = dynamic(['shadow', 'passwd', 'id_rsa']);
TomcatEvent
| extend File = extract(@'(.*\/)?(.*)', 2, tostring(UrlOriginal))
| where File in (forbidden_files)
| extend FileCustomEntity = File, UrlCustomEntity = UrlOriginal

YAML

name: Tomcat - Request to sensitive files
id: 0c851bd4-4875-11ec-81d3-0242ac130003
description: |
    'Detects request to sensitive files.'
triggerThreshold: 0
entityMappings:
- fieldMappings:
  - columnName: FileCustomEntity
    identifier: Name
  entityType: File
- fieldMappings:
  - columnName: UrlCustomEntity
    identifier: Url
  entityType: URL
version: 1.0.2
triggerOperator: gt
query: |
  let forbidden_files = dynamic(['shadow', 'passwd', 'id_rsa']);
  TomcatEvent
  | extend File = extract(@'(.*\/)?(.*)', 2, tostring(UrlOriginal))
  | where File in (forbidden_files)
  | extend FileCustomEntity = File, UrlCustomEntity = UrlOriginal  
tactics:
- InitialAccess
kind: Scheduled
queryFrequency: 1h
severity: High
queryPeriod: 1h
requiredDataConnectors:
- datatypes:
  - Tomcat_CL
  connectorId: CustomLogsAma
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Tomcat/Analytic Rules/TomcatRequestSensitiveFiles.yaml
relevantTechniques:
- T1189

ARM