hitb04-teo-sze-siong.zip

HITB (Hack In The Box) 2004 Presentation by Teo Sze Siong: "Stealth Virus Design Thru Breeding Concept (Non Polymorphic)". Most polymorphic virus design it is not totally flawless because the virus researchers can extract out the important bytes containing the logic of the program and search for the logics signature when scanning for polymorphic viruses. The reason portion signature searching works is because some parts of the code in the virus cannot be modified in order to ensure it works correctly. In order to design a truly stealth virus, we can code a virus that stores a series of program logics in source code to reproduce itself. For example, using the Compiler Class in .NET Framework, we can design a virus to randomly produce another new virus that is totally different from itself. The Compiler Class in the .NET Framework runtime is capable of producing executables from source code without the SDK. Includes Proof of Concept (POC) code samples in C# .NET.