Sober Mass-mailing Worm Update Information

Sober Mass-mailing Worm Update Information: "US-CERT is aware of functionality that could allow the latest Sober mass-mailing worm variants known as 'W32/Sober.X', 'W32/Sober.Y', and 'W32/Sober.Z' to automatically update themselves. These Sober worm variants are dual-language (English and German) mass-mailing worms that utilize a built-in SMTP engine to propagate. There have been over 20 Sober worm variants since October 2003. The latest Sober worm variant has been propagating since November 15, 2005 and will attempt to update itself on January 6, 2006"