An inventive new use for Google!

Web Worm Uses Google To Spread Virus. 

…a web worm named Santy is utilizing Google to help it spread to web bulletin boards using the PHP scripting language. 

The worm sends Google a specific search request, essentially asking for a list of vulnerable sites. Armed with the list, the worm then attempts to spread to those sites using a PHP request designed to exploit the phpBB bulletin board software.