https://cubk.cn/en cubk's blog: programming, reviews and reverse engineering. en Wed, 04 Nov 2026 16:00:00 GMT https://cubk.cn/en/articles/reversing-novoline https://cubk.cn/en/articles/reversing-novoline Wed, 04 Nov 2026 16:00:00 GMT cubk Programming Reverse Engineering Reports Minecraft Reversing two VMProtect-protected Minecraft clients with different authentication systems https://cubk.cn/en/articles/reversing-moon-client-4-0 https://cubk.cn/en/articles/reversing-moon-client-4-0 Fri, 30 Oct 2026 16:00:00 GMT cubk Programming Reverse Engineering Reports Minecraft Reversing a Minecraft client protected with a custom JDK and Themida/VMProtect. https://cubk.cn/en/articles/obliterating-zelix-klass-master https://cubk.cn/en/articles/obliterating-zelix-klass-master Sun, 25 Oct 2026 16:00:00 GMT cubk Programming Reverse Engineering Reports A teardown of ZKM's anti-debugging, reference obfuscation, method parameter changes and parameter type obfuscation, constant encryption, control flow and exception obfuscation, with a runtime-replay deobfuscation approach. https://cubk.cn/en/articles/arkose-captcha-research https://cubk.cn/en/articles/arkose-captcha-research Wed, 01 Apr 2026 16:00:00 GMT cubk Programming CAPTCHA Reverse Engineering Reports Funcaptcha is a CAPTCHA system used by platforms such as GitHub and Roblox. A brief look at how to implement its protocol.