Box - File containing sensitive data

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Id	266746ae-5eaf-4068-a980-5d630f435c46
Rulename	Box - File containing sensitive data
Description	Detects files which potentialy may contain sensitive data such as passwords, authentication tokens, secret keys.
Severity	Medium
Tactics	Exfiltration
Techniques	T1048
Required data connectors	BoxDataConnector
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/Box/Analytic Rules/BoxSensitiveFile.yaml
Version	1.0.0
Arm template	266746ae-5eaf-4068-a980-5d630f435c46.json

KQL

BoxEvents
| where SourceItemName =~ 'id_rsa' or SourceItemName contains 'password' or SourceItemName contains 'key' or SourceItemName contains '_key' or SourceItemName contains '.ssh' or SourceItemName endswith '.npmrc' or SourceItemName endswith '.muttrc' or SourceItemName contains 'config.json' or SourceItemName contains '.gitconfig' or SourceItemName endswith '.netrc' or SourceItemName endswith 'package.json' or SourceItemName endswith 'Gemfile' or SourceItemName endswith 'bower.json' or SourceItemName endswith 'config.gypi' or SourceItemName endswith 'travis.yml' or SourceFileName =~ 'id_rsa' or SourceFileName contains 'password' or SourceFileName contains 'key' or SourceFileName contains '_key' or SourceFileName contains '.ssh' or SourceFileName endswith '.npmrc' or SourceFileName endswith '.muttrc' or SourceFileName contains 'config.json' or SourceFileName contains '.gitconfig' or SourceFileName endswith '.netrc' or SourceFileName endswith 'package.json' or SourceFileName endswith 'Gemfile' or SourceFileName contains 'bower.json' or SourceFileName contains 'config.gypi' or SourceFileName contains 'travis.yml'
| extend AccountCustomEntity = SrcUserName
| extend IPCustomEntity = SrcIpAddr

YAML

name: Box - File containing sensitive data
kind: Scheduled
tactics:
- Exfiltration
triggerThreshold: 0
triggerOperator: gt
version: 1.0.0
status: Available
queryFrequency: 1h
id: 266746ae-5eaf-4068-a980-5d630f435c46
requiredDataConnectors:
- connectorId: BoxDataConnector
  dataTypes:
  - BoxEvents_CL
relevantTechniques:
- T1048
description: |
    'Detects files which potentialy may contain sensitive data such as passwords, authentication tokens, secret keys.'
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Box/Analytic Rules/BoxSensitiveFile.yaml
queryPeriod: 1h
severity: Medium
query: |
  BoxEvents
  | where SourceItemName =~ 'id_rsa' or SourceItemName contains 'password' or SourceItemName contains 'key' or SourceItemName contains '_key' or SourceItemName contains '.ssh' or SourceItemName endswith '.npmrc' or SourceItemName endswith '.muttrc' or SourceItemName contains 'config.json' or SourceItemName contains '.gitconfig' or SourceItemName endswith '.netrc' or SourceItemName endswith 'package.json' or SourceItemName endswith 'Gemfile' or SourceItemName endswith 'bower.json' or SourceItemName endswith 'config.gypi' or SourceItemName endswith 'travis.yml' or SourceFileName =~ 'id_rsa' or SourceFileName contains 'password' or SourceFileName contains 'key' or SourceFileName contains '_key' or SourceFileName contains '.ssh' or SourceFileName endswith '.npmrc' or SourceFileName endswith '.muttrc' or SourceFileName contains 'config.json' or SourceFileName contains '.gitconfig' or SourceFileName endswith '.netrc' or SourceFileName endswith 'package.json' or SourceFileName endswith 'Gemfile' or SourceFileName contains 'bower.json' or SourceFileName contains 'config.gypi' or SourceFileName contains 'travis.yml'
  | extend AccountCustomEntity = SrcUserName
  | extend IPCustomEntity = SrcIpAddr

ARM