SlackAudit - Public link created for file which can contain sensitive information

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

requiredDataConnectors:
- connectorId: SlackAuditAPI
  dataTypes:
  - SlackAudit_CL
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SlackAudit/Analytic Rules/SlackAuditSensitiveFile.yaml
version: 1.0.0
status: Available
queryPeriod: 1h
severity: Medium
relevantTechniques:
- T1048
tactics:
- Exfiltration
kind: Scheduled
queryFrequency: 1h
description: |
    'Detects public links for files which potentialy may contain sensitive data such as passwords, authentication tokens, secret keys.'
query: |
  SlackAudit
  | where Action =~ 'file_public_link_created'
  | where EntityFileName == 'id_rsa' or EntityFileName contains 'password' or EntityFileName contains 'key' or EntityFileName contains '_key' or EntityFileName contains '.ssh' or EntityFileName endswith '.npmrc' or EntityFileName endswith '.muttrc' or EntityFileName contains 'config.json' or EntityFileName contains '.gitconfig' or EntityFileName endswith '.netrc' or EntityFileName endswith 'package.json' or EntityFileName endswith 'Gemfile' or EntityFileName endswith 'bower.json' or EntityFileName endswith 'config.gypi' or EntityFileName endswith 'travis.yml'
  | extend AccountCustomEntity = SrcUserName
  | extend IPCustomEntity = SrcIpAddr  
id: 279316e8-8965-47d2-9788-b94dc352c853
triggerThreshold: 0
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: AccountCustomEntity
  entityType: Account
- fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
  entityType: IP
name: SlackAudit - Public link created for file which can contain sensitive information.

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2023-02-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/279316e8-8965-47d2-9788-b94dc352c853')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/279316e8-8965-47d2-9788-b94dc352c853')]",
      "properties": {
        "alertRuleTemplateName": "279316e8-8965-47d2-9788-b94dc352c853",
        "customDetails": null,
        "description": "'Detects public links for files which potentialy may contain sensitive data such as passwords, authentication tokens, secret keys.'\n",
        "displayName": "SlackAudit - Public link created for file which can contain sensitive information.",
        "enabled": true,
        "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/SlackAudit/Analytic Rules/SlackAuditSensitiveFile.yaml",
        "query": "SlackAudit\n| where Action =~ 'file_public_link_created'\n| where EntityFileName == 'id_rsa' or EntityFileName contains 'password' or EntityFileName contains 'key' or EntityFileName contains '_key' or EntityFileName contains '.ssh' or EntityFileName endswith '.npmrc' or EntityFileName endswith '.muttrc' or EntityFileName contains 'config.json' or EntityFileName contains '.gitconfig' or EntityFileName endswith '.netrc' or EntityFileName endswith 'package.json' or EntityFileName endswith 'Gemfile' or EntityFileName endswith 'bower.json' or EntityFileName endswith 'config.gypi' or EntityFileName endswith 'travis.yml'\n| extend AccountCustomEntity = SrcUserName\n| extend IPCustomEntity = SrcIpAddr\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Exfiltration"
        ],
        "techniques": [
          "T1048"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}