Zlob DNS Changer problem

Hi there,
Every time I google somthing in any internet browser, and I click on the link, I get redirected to other search engines via a site called copy-book.com. I've heard that the problem (virus) is called Zlob DNS Changer. I've looked on other Zlob removal pages, but they are all for Windows operating systems and I don't know how to remove it with my Mac! It's driving me insane and my internet is so slow now. Can anyone help please?!
Will
P.S.
If this help, here is some solution someone posted in another forum but It didn't really help me.
"Alright so I had this and I think I have managed to fixed it. What I had was a DNS changer Trojan that was able to hack into my router and change my DNS so that when I used google it redirected me. I was redirected by wierd IP addresses and copybook as well. What you need to do is check your DNS and if it starts with 85. you could have the same problem. Also check out these sites to find out more:
www.youtube.com/watch?v=bzNQ0OxNX8E
http://www.trustedsource.org/blog/42/New-DNSChanger-Trojan-hacks-into-routers
Info on how to remove it:
http://www.exterminate-it.com/malpedia/remove-zlob-dns-changer"

Might check here and here nd here.
If your router has been compromised, I don't know what to tell you about that, except maybe try a factory default reset.
Your profile suggests that your are still at 10.5.1. If that's true, find an uninfected Mac and download and burn to CD the 10.5.4 combo update and 2008-005 security update then install them on your computer. I think that security update is supposed to protect against that DNS changer thing but you may need to remove it first if you've already got it.

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I've stumbled upon some sort of virus/trojan/malware, and nothing seems capable of getting rid of it. I've tried MacScan, ProtectMac, and iAntiVirus, emptying the cache/history/cookies/etc. of all my browsers, as well as resetting my router, and none of these attempts have fixed it. (iAntiVirus is running a full scan right now, but I'm not hopeful; a quick scan found nothing and the software's update feature wouldn't work.)
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Message was edited by: senseabove

Thanks, Thomas. I'm jumping through hoops to get to the internet because I'm subleasing an apartment right now and the owner specifically requested I leave the internet routed through his iMac so he has remote access to it. The Mini I really only plug in when I want to watch Netflix on the main TV (and the only reason I'm forwarding to it via ethernet is that it's having an unrelated wifi problem). I just figured it would be of interest that the pop-up occurs on the laptop and subsequently connected mini, but not the originating iMac, implying it's a problem with my computer, but more than a nasty cookie of some sort.
Nevertheless, I've connected the modem directly to the Mac to see if that'll help get to the root of this. The DNS servers now appearing when I run "/usr/sbin/scutil --dns | grep nameserve" in the terminal (which I got from another thread on DNS Changers in the 10.5 forum) are all my ISP's, according to a google search of the IP address, so I would assume that means I'm not suffering from a DNS Changer. And I'm using Camino now, since the attack seems to only work in Safari and Firefox, while trying to trigger it again in Firefox.
And I'm running little snitch, which I'd just remembered to turn back on before you replied, but I'm not sure what I should be looking for. That said, it doesn't seem to be popping up since I've turned Little Snitch back on.

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Tnx for responding.
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