Nycat.rar -

You must delete the META-INF folder inside minecraft.jar to prevent the game from crashing.

Compressed archives are a common way to hide malware. If you downloaded nycat.rar from an untrusted site, follow these steps: WinRAR vulnerability exploited by two different groups nycat.rar

The pixel art for the Nyan Cat entity and its rainbow trail. How to Install the Nyan Cat Mod You must delete the META-INF folder inside minecraft

Move any sound folders into the .minecraft/resources directory. 🛡️ Stay Safe: Security Tips nycat.rar