Creat a virus for fun...

1. Right-click on the desktop.
2. Select New.
3. Click Create Shortcut and a window will come up.
4. Enter shutdown -s -t into the location field (With a space on the end).
5. Enter the amount of time you want someone to have until shutdown in seconds, at the end of the location field.
6. Add another space and enter -c, then another space.
7. In double quotation marks ("), type in a comment that will appear when the computer is shutting down. e.g. "WARNING: VIRUS DETECTED. BEGIN SHUTDOWN".
8. Click next. (Example: shutdown -s -t 10 -c "WARNING: VIRUS DETECTED. BEGIN SHUTDOWN")
9. Name the fake virus on the next screen and click OK.
10. Click on the shortcut to activate your fake virus.

[edit] Method 2 (Windows XP Only)

1. Open Notepad (Start > All Programs > Accessories > Notepad).
2. Copy and paste the following into the file:
   cls
   :A
   color 0a
   cls
   @echo off
   echo Wscript.Sleep
   echo Wscript.Sleep 5000>C:\sleep5000.vbs
   echo Wscript.Sleep 3000>C:\sleep3000.vbs
   echo Wscript.Sleep 4000>C:\sleep4000.vbs
   echo Wscript.Sleep 2000>C:\sleep2000.vbs
   cd %systemroot%\System32
   dir
   cls
   start /w wscript.exe C:\sleep3000.vbs
   echo Deleting Critical System Files...
   echo del *.*
   start /w wscript.exe C:\sleep3000.vbs
   echo Deletion Successful! echo:
   echo:
   echo:
   echo Deleting Root Partition...
   start /w wscript.exe C:\sleep2000.vbs
   echo del %SYSTEMROOT%
   start /w wscript.exe C:\sleep4000.vbs
   echo Deletion Successful!
   start /w wscript.exe C:\sleep2000.vbs
   echo:
   echo:
   echo:
   echo Creating Directory h4x...
   cd C:\Documents and Settings\All Users\Start Menu\Programs\
   mkdir h4x
   start /w wscript.exe C:\sleep3000.vbs
   echo Directory Creation Successful!
   echo:
   echo:
   echo:
   echo Execution Attempt 1...
   start /w wscript.exe C:\sleep3000.vbs
   echo cd C:\Documents and Settings\All Users\Start Menu\Programs\Startup\h4x\
   echo start hax.exe
   start /w wscript.exe C:\sleep3000.vbs
   echo Virus Executed!
   echo:
   echo:
   echo:
   start /w wscript.exe C:\sleep2000.vbs
   echo Disabling Windows Firewall...
   start /w wscript.exe C:\sleep2000.vbs
   echo Killing all processes...
   start /w wscript.exe C:\sleep2000.vbs
   echo Allowing virus to boot from startup...
   start /w wscript.exe C:\sleep2000.vbs
   echo:
   echo:
   echo Virus has been executed successfully!
   start /w wscript.exe C:\sleep2000.vbs
   echo:
   echo Have fun!
   start /w wscript.exe C:\sleep2000.vbs
   pause
   shutdown -f -s 10 -c "Your computer has committed suicide. Have a nice day."
3. Save it with a .bat extension. e.g. fakevirus.bat

[edit] Method 3

1. For a way to have a bunch of command prompts pop up out of nowhere go to Notepad and type in start a lot (Each on a separate line).
2. Save it with a .bat extension. e.g. fakevirus.bat

• A simpler method is to type start Happy.bat and then save it as Happy.bat

[edit] Abort Virus

1. Open the start menu.
2. Click Run (Windows XP only).
3. Type shutdown -a and press enter/return.

[edit] Video

Another way to create a fake virus:

[edit] Tips

• To make your virus more convincing, you could name it Internet Explorer and then right click your shortcut to the virus, click properties than click Change Icon. Then scroll through the list and click the Internet Explorer icon.
• Alternatively, set your 'virus' to execute every time a user logs in by navigating to Start > All Programs > Startup (Right-click) > Open and copying the shortcut into the folder that opens. Be careful with the shutdown timer's value, too short an interval will make it difficult for even an experienced administrator to deactivate the virus.
• Running batch files like these in full screen can make them even scarier and more convincing. Right click on the icon -> properties -> options -> full screen do not shut computer to early or it may not scare the victim or it wont look like a virus.

[edit] Warnings

• Only do this to someone who can handle the prank and stay nearby when the victim activates it.
• Make sure all your files are saved before running the fake virus.
• Make sure the time you give allows you enough time to run the abort method above.
• The first method is less effective on Windows Vista as a warning is given that the user is about to be logged off and they can cancel.

intro3 Ways to Create a Virus

I know this is going to be controversial. This is for informational purposes only. DO NOT spread or release the viruses created in this article. This will land you in jail. I am going to teach you how to create a virus. One very basic batch virus to code yourself and two virus construction kits.

DO NOT RELEASE THESE VIRUSES.

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press... Right?

I do not believe this to be a violation of the Instructables TOS, as I discourage you from releasing the viruses and I do not give you the viruses, I simply tell you how to create them.