Join us as we dive into Day 21 of TryHackMe's Advent of Cyber challenge: "HELP ME...I'm REVERSE ENGINEERING!" 🚀 In this video, we’ll guide you step-by-step through reverse-engineering a suspicious .NET binary file using ILSpy and PEStudio.

🔍 What You'll Learn:

The difference between Disassembly vs Decompiling
How to analyze PE (Portable Executable) file structures
Investigating multi-stage binaries and understanding their purpose
Using ILSpy to decompile and analyze .NET binaries
Identifying malicious behavior, such as file downloads, execution, and C2 (Command & Control) communications
🧠 Key Highlights:
✅ Understand the main function responsible for downloading and executing files
✅ Trace the malware’s activity to discover key indicators like domain names and C2 servers
✅ Learn how malware exfiltrates data in zip archives

Whether you're a cybersecurity enthusiast, student, or seasoned professional, this walkthrough will boost your reverse engineering skills and give you insights into real-world malware analysis techniques.

🔗 Resources Mentioned:

TryHackMe Advent of Cyber: [Website Link]
ILSpy: [ILSpy Official Link]
PEStudio: [PEStudio Official Link]
💬 Questions or Feedback? Drop a comment below—we’d love to hear from you!

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#reverseengineering #tryhackme #cybersecurity #ILSpy #PEStudio #malwareanalysis #adventofcyber2024 #CTF #CyberSecTraining #techeducation

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