Unity3D protection in “AU2” dance games, part 2

kao

Last December I wrote a blog post explaining how some of the AU2 dance games were protected. Apparently, the protection author read the blog post and updated his protection. 🙂 This blog post will explain how the protection was changed and suggest several ways of dealing with the new features.

This analysis covers:

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Unity3D protection in “AU2” dance games

kao

Today's story is about dancing games. Specifically, about

These games employ some tricks in the APK file structure as well as modified libmono.so. I will go through each of the protection mechanisms step-by-step and explain how it works. In the end, you will have all the necessary information to implement your own decryption tool that can decrypt AU2 protected DLL files.

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