msdirtbag/MDEAutomator: PowerShell-based Automation of Defender for Endpoint

Source: GitHub

Author: unknown

URL: https://github.com/msdirtbag/MDEAutomator

ONE SENTENCE SUMMARY:

MDEAutomator is a modular, serverless Azure Function and PowerShell-based solution streamlining endpoint management, incident response, threat hunting, and custom detection synchronization for Microsoft Defender for Endpoint (MDE).

MAIN POINTS:

  1. Provides bulk automation of response actions, live response commands, and threat indicator management.
  2. Utilizes Azure Functions (Dispatcher, Orchestrator, Profiles, TIManager, AutoHunt, CDManager) for endpoint orchestration.
  3. Supports multi-tenant operations using User Managed Identity and App Registration federation.
  4. Enables bulk threat hunting using KQL queries via Microsoft Graph API, exporting results to Azure Storage.
  5. Allows bulk synchronization of Custom Detections with Azure Storage, including backup capabilities.
  6. Offers convenient uploading/downloading of files and scripts to/from endpoints and Azure Storage.
  7. Implements Python/Flask-based GUI hosted in Azure App Service with Entra ID authentication.
  8. Provides cmdlets for essential operations such as device isolation, application execution restriction, and forensic package collection.
  9. Supports advanced security practices including signed PowerShell scripts via Azure Trusted Signing.
  10. Has an estimated monthly Azure cost of approximately $210 USD.

TAKEAWAYS:

  1. MDEAutomator significantly enhances Defender endpoint management through serverless automation and orchestration.
  2. Customizable PowerShell modules simplify complex MDE tasks like live response and threat indicator management.
  3. Multi-tenant readiness and federated identity options support scalable deployments.
  4. Advanced security measures like signed scripts and App Service authentication are strongly recommended.
  5. Comprehensive automation of custom detections and threat hunting greatly improves operational efficiency.