Some more viruses. From left to right:

Sasser - A computer worm known to spread without user input and slow systems to a crawl, though lacking any truly destructive payload of its own.
Sircam - A virus that spread via e-mail, mimicking legitimate e-mails with a set of false e-mail headers. Once activated, it would collect random files from the infected computer, infect them with Sircam’s code, and send them to e-mail addresses in the hosts address book.
Hybris - A computer worm that masqueraded as being sent from a pornographic e-mail address (typically called ‘ hahaha[at]sexyfun.net ’), compatible with malicious plug-ins that enhanced its functionality.