Top 5 shellcode-injection open source projects

HatVenom is a HatSploit native powerful payload generation tool that provides support for all common platforms and architectures.

Collection of shellcode injection techniques packed in a D/Invoke weaponized DLL

Python AV Evasion Tools

Simple shellcode obfuscator using PYTHON and C / C++

Advanced Malware with multifeatures written in ASM/C/C++ , work on all windows versions ! (uncompleted)