Reverse Engineering Obfuscated Code - CTF Write-Up

This is a write up for one of the FCSC (French Cyber Security Challenge) reverse engineering challenges.

It was the first time I had to deal with virtualized code, so my solution is far from being the best. Surely there were much quicker ways, but mine did get the job done. This write-up is essentially meant for beginners in the domain of obfuscated code reverse engineering.

a13K9s2c8@1M7s2y4Q4x3@1q4Q4x3V1k6Q4x3V1k6@1K9r3g2J5k6h3q4D9N6h3&6A6j5$3!0J5L8Y4y4W2j5%4g2J5K9i4c8&6i4K6u0W2k6$3W2@1K9s2g2T1i4K6u0W2K9h3!0Q4x3V1k6w2k6i4W2C8L8$3!0D9L8$3I4Q4x3V1j5`.

[培训]科锐逆向工程师培训第53期2025年7月8日开班！