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DynamicDllLoader

DynamicDllLoader in C# for native dlls (C / C++)

Loading a DLL from memory

This project describes a technique how a dynamic link library (DLL) can be loaded from memory without storing it on the hard-disk first.

Overview

The default windows API functions to load external libraries into a program (LoadLibrary, LoadLibraryEx) only work with files on the filesystem. It’s therefore "impossible" to load a DLL from memory. (You could do a similar way of managed injection) But sometimes, you need exactly this functionality (e.g. you don’t want to distribute a lot of files or want to make disassembling harder). Common workarounds for these problems are to write the DLL into a temporary file first and import it from there. We could also store the byte array in our program, or in an encrypted temp file. When the program terminates, the temporary file gets deleted.

C++ Source

https://www.joachim-bauch.de/tutorials/loading-a-dll-from-memory/