Create 3 Simple Fake Viruses using Command Prompt and Visual Basic Read more: http://hackapc.blogspot.com/2009/07/create-3-simple-fake-viruses-using_06.html#ixzz24JBnQyCs

f you want to have some fun with your friends, drop these fake viruses into the folder located at "C:\Documents and Settings\All Users\Start Menu\Startup", then watch them squirm.

Although the following fake viruses may seem malicious to the unsuspecting, they are non-destructive to your computer system. So you don’t need to worry about anything else and just enjoy the fun of making someone else panic.

1. Fake Virus Batch File - I got this prank from WikiHow so credit goes to them. I love this fake virus because it looks the most like an actual attack. Copy and paste the following into Notepad, then save the file with any name you choose and an extension of ".bat"

Heres the Code 

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!
start /w wscript.exe C:sleep2000.vbs
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 SettingsAll UsersStart MenuPrograms
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 SettingsAll UsersStart MenuProgramsStartuph4x
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 -s -t 10 -c "Your computer has committed suicide. Have a nice day pal."

And here is the screenshot



2. Fake Format - I remember getting my cousin once with a similar program. This cool fake virus perfectly simulates the Windows disk-format dialog, and cannot be closed or halted until it completes its course. Once it’s done, a message will be displayed informing the user that it was just a joke.



3. Fake Delete - This one is my favorite because, i love its formatting counterpart, Fake Delete mimics the Windows file-delete dialogs. It even goes as far as using your actual file list instead of generic filenames! This also has the "it-was-all-a-joke" screen after it’s done running.



Doesn't matter your friend click yes or no, fake delete will start deleting all the files.



When executing these pranks, please be considerate to whether your intended victim is mildly-panicky or really panicky, and whether your mark has some kind of panic disorder or heart problem. It’s all fun and games until someone goes to the hospital. Otherwise, have fun!

Read more: http://hackapc.blogspot.com/2009/07/create-3-simple-fake-viruses-using_06.html#ixzz24JC6E0Nx