Zippedscript -

The most radical iterations of ZippedScript take this further. Developers have created self-extracting, self-executing archives that unzip into memory (using tools like upx or shar ), run, and vanish without touching disk. Others have embedded compressed payloads inside polyglot files—valid as both a ZIP and a PNG, for instance—thereby hiding executable logic inside an image. In these forms, ZippedScript becomes stealth computing: ephemeral, efficient, and elusive.