Maester

Introduction to Maester

Maester is an open-source, PowerShell-based test automation framework designed to help organizations monitor and maintain the security configuration of their Microsoft 365 environments. Built on top of the Pester testing framework, Maester integrates with Microsoft Graph and Entra ID Security Config Analyzer (EIDSCA) to provide a comprehensive set of tools for validating tenant configurations against best practices and security policies.

Key Features

• Automated Security Testing: Maester offers a collection of over 40 pre-built tests from EIDSCA, covering common attack scenarios and best practices for Microsoft Entra ID.
• Customizable Tests: Users can write their own tests using PowerShell and Pester, tailoring them to their organization’s specific security requirements.
• Continuous Monitoring: Integrate Maester with CI/CD pipelines, such as GitHub Actions and Azure DevOps, to continuously monitor tenant configurations and receive alerts on test failures.
• Interactive Reporting: Generate user-friendly reports that provide detailed insights into test results, with direct links to Microsoft admin portals for quick remediation.
• Security as Code (SaC): Define security policies as code, enabling version control and automated compliance checks within DevOps workflows.

How to Use Maester

To get started with Maester, follow these steps:

1. Install Required Modules: Open PowerShell and run the following commands to install the necessary modules:

   Install-Module -Name Pester -Force -Scope CurrentUser
   Install-Module -Name Maester -Scope CurrentUser

2. Install Maester Tests: Create a directory for Maester tests and install them:

   md maester-tests
   cd maester-tests
   Install-MaesterTests

3. Connect to Microsoft 365 Tenant: Use the following command to authenticate:

   Connect-Maester -Service All

4. Run Tests: Execute the tests and generate a report:

   Invoke-Maester -OutputFolder './test-results'

For more advanced configurations, refer to the official documentation: Installation Guide

Pricing

Maester is completely free to use. There are no licensing fees or subscriptions required, making it an accessible tool for organizations of all sizes.

Frequently Asked Questions (FAQs)

• Is Maester suitable for small businesses?
  Yes, Maester’s open-source nature and ease of use make it ideal for small to medium-sized businesses looking to enhance their Microsoft 365 security posture without significant investment.
• Can Maester be integrated with other tools?
  Absolutely. Maester supports integration with GitHub Actions, Azure DevOps, and Azure Automation, allowing for seamless incorporation into existing DevOps workflows.
• How can I contribute to Maester?
  As an open-source project, Maester welcomes contributions. You can participate by reporting issues, suggesting features, or submitting pull requests on its GitHub repository: https://github.com/maester365/maester