Trojan!? Where from??

Ok, here's what.

Somehow, every few days, when I run my periodical virus scan using ESET NOD32 with the latest definitions, I find completely new trojans, varying from 5 to sometimes over 40 infected files.

But my question is, where are they coming from??

I don't go around executing any files without knowing what they're going to do, I don't ever open a pen drive unless its been scanned by both NOD32 and Malwarebytes. If anything, I think the only thing I'm doing wrong is not regularly applying the latest hotfixes using Windows Update, but even if there are vulenaribilities, the trojans have to have a source right??

So what's the source?? My Windows Firewall is always turned on, and I use Chrome as my primary browser. Apart from that, I have five ports that I've left open for use with uTorrent.

And I can't for the life of me figure out the source of these damn things. So any ideas appreciated.

For once
Leave ur current AV and scan with KIS and check out

B

KIS is okay but they also fail than try the father of antivirus "Spyware Doctor"

whats the trojan name shown ? i think its win32 virut , if yes then you are in some trouble .

Are any suspicious processes running (See Task Manager).

And just because you don't open a pen drive without scanning doesn't mean you are completely safe, because if autorun is on, as soon as you plug a pen drive into the system, the autorun runs the malware programs, although Malwarebytes should have taken care of that if real-time protection is switched on.

According to me, uTorrent is the culprit...
Always scan the files downloaded from Torrents before u open them...

Esp. be careful with exe and rar files downloaded from Internet or Torrents.
If possible check the MD5 checksum with the original executable from the Website