Some users reported that their AV was detecting JS/Exploit-BO virus, on sites like ESPN and Friendster, for instance.
The problem is with the McAfee AV.
McAfee just released an Emergency DAT to fix the false on some JavaScripts, detecting as JS/Exploit-BO on virus database (DAT file) 5197 released today. [1]
FIXED with DAT 5198, Release Date: 2-JAN-2008
[1] McAfee falsing on some JavaScripts (2008-JAN-02) [SANS]
[2] Downloads – Virus Protection – DAT Files [McAfee]
