An instant-messaging worm has started spreading to PCs running Windows
by using Skype to chat up potential victims in an attempt to convince
them to download and run the malicious software.

The worm, described in a blog post
written by eBay’s Skype subsidiary, can converse with victims in at
least three different languages: Latvian, Russian, and English.
Antivirus firms and eBay have already assigned a plethora of names to
the digital pest, including Ramex (Skype), Pykspa (Symantec), Skipi
(F-Secure), and Pykse (McAfee and others).

http://www.securityfocus.com/brief/586