A worm dubbed “Here you have” — the subject line of the email it hides in — is spreading wildly across the Internet. The attack comes in the form of a link purporting to take the reader to a PDF file, but instead leads to an executable that tries to send copies of the worm to people listed in the victim’s email address book. Several variants of the worm are out on the Web, according to McAfee. While the email attack has been crippled, infected hosts may continue to spread the worm.