Zmist


Zmist is a metamorphic computer virus created by the Russian virus writer known as Z0mbie. It was the first virus to use a technique known as "code integration". In the words of Ferrie and Ször:

This virus supports a unique new technique: code integration.
The Mistfall engine contained in it is capable of
decompiling Portable Executable files to smallest
elements, requiring 32 MB of memory. Zmist will insert
itself into the code: it moves code blocks out of the way,
inserts itself, regenerates code and data references, including
relocation information, and rebuilds the executable.

Variants