In what might be a test worm, anti-virus experts are keeping an eye on a new worm that is spreading through MSN Messenger. “Known as Jitux, the worm is self-propagating and contains a link to a Web site that automatically downloads an executable file named “jituxramon.exe” to the PC. Once the file runs, the worm begins sending out copies of itself to all of the names in the user’s Messenger contact list. The worm, first discovered Tuesday, is capable of spawning multiple instances of itself on one PC.” [O’Reilly Network Developer News] there be a warning for you.