Anti-virus firms acknowledged that the Babylonia virus -- perhaps the first upgradeable virus -- is now less of a threat, since the Web site to which the virus looked for new code modules was closed down. The Web site, known as SOK4EVER, was based in Japan and owned by the Source of Kaos virus exchange group, according to anti-virus firm Trend Micro Inc. The group's U.S. Web site had been shut down following the Melissa virus outbreak. The virus writer had used SOK4EVER as a staging site for the Babylonia virus: New code posted there would be downloaded by the virus and used to modify how it attacks computers. With the site gone, the virus is stuck in a relatively benign incarnation. -- Robert Lemos, ZDNN.