Simple .NET Loader

well-known as crypter or stub

Encrypt Code

public static string Encrypt(string textToEncrypt, string key)
        {
            RijndaelManaged RijndaelCipher = new RijndaelManaged();
            byte[] PlainText = Encoding.Unicode.GetBytes(textToEncrypt);
            byte[] Salt = Encoding.ASCII.GetBytes(key.Length.ToString());
            PasswordDeriveBytes SecretKey = new PasswordDeriveBytes(key, Salt);
            ICryptoTransform Encryptor = RijndaelCipher.CreateEncryptor(SecretKey.GetBytes(32), SecretKey.GetBytes(16));
            MemoryStream memoryStream = new MemoryStream();
            CryptoStream cryptoStream = new CryptoStream(memoryStream, Encryptor, CryptoStreamMode.Write);
            cryptoStream.Write(PlainText, 0, PlainText.Length);
            cryptoStream.FlushFinalBlock();
            byte[] CipherBytes = memoryStream.ToArray();
            memoryStream.Close();
            cryptoStream.Close();
            return Convert.ToBase64String(CipherBytes);
        }

For educational