Billing - THM Walkthrough

Introduction

This tutorial provides a comprehensive walkthrough of the Billing room on TryHackMe, created by RunasRs. It is designed to help you understand the key concepts and tasks involved in this room, making it easier to grasp the fundamentals of billing and payment systems in a cybersecurity context.

Step 1: Access the TryHackMe Billing Room

• Go to the TryHackMe website and log in to your account.
• Use the search bar to find the "Billing" room created by RunasRs.
• Click on the room to enter the overview page.

Step 2: Understand the Room's Objective

• Read the description provided in the room to understand its purpose.
• Familiarize yourself with the expected learning outcomes, which typically include:
  • Basic billing concepts
  • Payment processing fundamentals
  • Common vulnerabilities related to billing systems

Step 3: Start the Challenges

• Navigate to the "Challenges" section within the room.
• Review each challenge carefully and note any specific instructions or hints provided.
• Work through each challenge in the order they are presented to build upon your knowledge progressively.

Step 4: Complete the First Challenge

• Focus on the first challenge, which often involves basic billing system concepts.
• Take note of key terms, such as:
  • Invoice: A document requesting payment for goods or services.
  • Payment Gateway: An online service that processes credit card payments.
• Ensure you understand how invoices are generated and processed.

Step 5: Explore Payment Processing

• Move on to challenges related to payment processing.
• Learn about different types of payment methods, including credit cards and digital wallets.
• Understand the flow of a typical transaction, which includes:
  • Customer initiates a payment
  • Payment is processed through a gateway
  • Confirmation is sent back to the customer

Step 6: Identify Common Vulnerabilities

• In later challenges, focus on identifying vulnerabilities in billing systems.
• Common issues may include:
  • SQL Injection: A code injection technique that can manipulate databases.
  • Cross-Site Scripting (XSS): An attack that injects malicious scripts into web pages.
• Learn how to mitigate these vulnerabilities by following best practices in coding and system design.

Step 7: Submit Your Answers

• After completing each challenge, make sure to submit your answers.
• Review any feedback provided to enhance your understanding of the material covered.

Conclusion

In this tutorial, you learned how to navigate the TryHackMe Billing room, understand the key concepts of billing and payment systems, and identify common vulnerabilities. Completing these challenges not only enhances your cybersecurity knowledge but also prepares you for real-world applications in securing billing systems. As a next step, consider exploring more advanced rooms on TryHackMe to deepen your cybersecurity expertise.