Trojan infection. Please help!

I just found that two copies of firefox installed on my computer. One was installed by myself, the other was very likely installed by my LD. Whenever I try to uninstall the latter, it triggers MSE to detect a comame trojan. There is no problem to run that copy of firefox. I checked the information in "about mozilla firefox", it shows "version 3.5.2" and "firefox for google pack/referral google-cjk-1.1". microsoft security essential and malwarebytes anti-malware cannot detect anything. Please help!

所有跟帖： 

• 回复：Trojan infection. Please help! -荆楚农夫- ♀ (232 bytes) () 01/10/2010 postreply 13:58:50

• Perhaps I solved the problem -荆楚农夫- ♀ (904 bytes) () 01/10/2010 postreply 18:45:57

• 回复：Perhaps I solved the problem -荆楚农夫- ♀ (31 bytes) () 01/10/2010 postreply 18:47:48