4 Cool Fake Viruses to Make Your Friends Freak Out

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There’s nothing wrong with a harmless prank, especially when the victim is anyone but you. If you want to have some fun with your friends (or enemies for that matter), drop these cool fake viruses into the folder located at “C:Documents and SettingsAll UsersStart MenuStartup”, then watch “˜em squirm.

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

Mix it up a little, don’t forget to check out other “prank” posts on MakeUseOf like 4 Really Popular Prank Call Websites & How They Work and Two Great “˜n Simple Nerdy Office Pranks to Play On Friends!

Let’s get pranking, shall we?

(1) Fake Virus Batch File

I got this prank from WikiHow. I love it because it looks the most like an actual attack. Copy and paste the following into an open Notepad window, then save the file with any name you choose and an extension of “.bat”

Here’s the code:

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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.”

Here’s how it will look like once it is launched:

cool fake viruses

Your victim’s PC will display messages as in the above image, and then initiate a shutdown sequence which can be stopped by entering “shutdown ““a” in the Run command box. It looks bad, but is otherwise completely harmless.

(2) EICAR Test File

This test file, while harmless, will set off any good virus scanner. It’s a test file to make sure that your anti-virus is vigilant, and is great for sending in an email.

fake virus programs

(3) Fake Format

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

fake virus for windows

(4) Fake Delete

This is my favorite because, like 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.

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!

Are you familiar with any cool fake viruses? What are your favorite computer pranks? Give us some of your most evil, yet good-natured, ideas in the comments.

Image credit: rmkoske

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Comments (21)
  • kim

    lol my eicar got removed immediately by my windows security even when i saved in .txt format…..

  • Henry Griffeths

    Thanks for sharing all of your ideas! definitly going to try.Tempted to do it at school, but I can’t imagine the conciquences. (I got to a middle school)

  • ROzA

    This is a fun one!

    Type
    @echo off
    color 0a
    :hack
    echo echo 010 010 10 01 0100 10 010 10 010 1001 10 010 10 10 010 101110 10 100 100 1011
    echo 101010100 100 00100 010 0010 01000010 010 01000100010 01000 0100100 100 01000
    echo 101 0100010 1000001 01010 10 0100010 10 0010 010010 0 010 010 0000111001011011
    echo 000 010 01010010 010001001 00100100 1010 01001001 0010010 01001000100 00100111
    echo 001 0010 10 010010010 010 100 10 01 010 010 010 010 10 010 10 010 10 01010 0
    echo 000 010 00 001 0010 00 1000100 10
    echo 1111 10 010 01 0010100 10 01001010 1 11 0001 00 001 1 1 01 0100000 1 1 11 1
    echo 000 1000 10 010 100 0010 10 01 010 010 10000 010 010 01 10010010010 1001 100
    echo 1010010 010 100 010 10 010 10 010 1010 010 01 01 00001 010 01 010 010 10 001
    echo 111 11111 11111 11111 11111 11111 1111111 111111111
    echo 101010100 100 00100 010 0010 01000010 010 01000100010 01000 0100100 100 011
    echo 1111 10 010 01 0010100 10 01001010 1 11 0001 00 001 1 1 01 0100000 1 1 11 1
    echo 000 1000 10 010 100 0010 10 01 010 010 10000 010 010 01 10010010010 1001 10011
    echo 1010010 010 100 010 10 010 10 010 1010 010 01 01 00001 010 01 010 010 10 0011111
    echo 101 0100010 1000001 01010 10 0100010 10 0010 010010 0 010 010 00001110010110111
    echo 000 010 01010010 010001001 00100100 1010 01001001 0010010 01001000100 001001111
    echo 0000 00 000000000000 000000000000000000 00000000000001111 10 0100000 1000000111
    echo 1111111111111111111111111111111111111111111111111111111111111111
    goto hack
    and name it Matrix.bat. It really looks the part!

  • Terence

    type this script into batch:
    @echo off
    :top
    start virus
    goto top

    and name it anything you want, but end it in .bat.
    when you run it command prompts will start appearing everywhere, and the only way to stop them is to restart your computer.

  • Maddie/ Ethan

    The first method is the best. Totally gonna work for the amazing prank we’re gonna pull… c:

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For more details, please read our disclosure.
Affiliate Disclamer

This review may contain affiliate links, which pays us a small compensation if you do decide to make a purchase based on our recommendation. Our judgement is in no way biased, and our recommendations are always based on the merits of the items.

For more details, please read our disclosure.