Help with Virus in Mac

I'M sure I have a virus in my macbook pro.
It behaves like a PC virus with redirections and the like.
Where does it hide and how do I get rid of it?

Hears a free checker, use it to see if you have one first.

ClamXav is a free virus checker for Mac OS X. It uses the tried, tested and very popular ClamAV open source antivirus engine as a back end.
http://www.clamxav.com/

I had a few phishing emails only.
My problem stems from the browser being redirected by surveys.cnet.com
It stops the browser loading the page I want.
Not all pages are affected.

There all kinds of hijackers that can function on a Mac, try disabling JavaScript, if that doesn't work try http://applejack.sourceforge.net/, it's a pretty neat little program. Aside from that, knowing what the website is that you are trying to visit is would help.

Download Onyx and try running some of the maintenance scripts, you'll find it hear
http://www.macupdate.com/info.php/id/11582/onyx

You can look at these to.
NoScript, NoScript should blocks the re-direct.
http://mac.softpedia.com/progDownloa...oad-30339.html

AdBlock is another that you could try.
http://adblockplus.org/en/installation

Sorry if there don't fix your box mate.