https://lourc0d3.github.io/posts/Windows-Shellcode-%EC%9E%91%EC%84%B1%EC%8B%9C%EC%97%90-WSASocketA-%ED%95%A8%EC%88%98-%EC%82%AC%EC%9A%A9-%EC%8B%9C-%EC%A3%BC%EC%9D%98%EC%82%AC%ED%95%AD/