I just made an upgraded version of the fake virus, you can make a shortcut to it and change and icon the name to internet explorer if you want to fool a friend.
This one will give you 2 minutes until it shuts down your PC if you answer yes. You can stop the shutdown by typing shutdown -a in the CMD.
@echo off
echo A virus has been detected!
pause
echo Attempting to delete.
pause
echo Deletion failed!
@echo sys32 has been modified, fatal error!!
echo System 32 Deleted. Do you want to shut down? y/n
set /p var=answer
pause
if %var%== y goto yes
if %var%== n goto no
:yes
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
shutdown -f -s -t 120
:no
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
echo 101010101111100010100101010101001010101010101010
color 1
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goto no