PC infections often spread to Web sites

Most people are familiar with the notion that a computer virus can be passed from PC to PC, but many folks would probably be surprised to learn that a sick PC can often pass its infection on to Web sites, too.

Some of the most pervasive malicious software circulating today (e.g., Virut) includes spreading capabilities that hark back to the file-infecting methods of the earliest viruses, which spread by making copies of themselves, or by inserting their code into other files on the host system...