Actually, McAfee detects it too... it's classic adware, installing a useless toolbar and creating unwanted connections to other internet servers (possibly transmitting personal data to those servers).joechung said:
Hmm, a spyware detector included in Google Pack claims that a Baidu BHO is spyware.
Baidu is a popular search engine in China, more popular than Google China.
There seems to be a conflict of interest here...
If you don't see the toolbar, you don't have it installed. Chalk this one up to a poorly-programmed spyware scanner.