ID:277547
 
The other day I was looking for a no-cd patch for a game and a website I went to attempted to try and put a virus on my machine. Thankfully, Avast! caught this and was able to help me stop the process, or so I thought. In the last 48 hours my PC has been acting very weirdly, it has been taking more and more time to boot up and sometimes it lags out something horrible. Not to mention I am now getting pop-up Ads from Explorer in Firefox. Well I first did a full system scan with Avast! and found I had several viruses and trojans on my system. I got rid of them, then I did a boot-time scan as well, which found even more and got rid of those.

I logged back onto my PC and it was still acting funny, so I tried using the Panda Online Antivirus, which usually helps with everything else. But this time it always gets stuck at this point on my PC trying to scan "c:\ntldr" although I can't find it on my system and I can't find it through the command prompt. So then I booted windows into safe mode, did the entire process all over again, this time found a few other viruses, got rid of them, but I am still having a few problems. Anyone got any suggestions other then reformatting?
Spybot Search and Destroy has a program with it called the "TeaTimer" that will help you prevent these viruses from reenstating themselves. Also, do some anti-spyware scans as well. Most anti-virus scanners don't bother with adware and spyware, despite being pretty much viruses themselves. Try spybot and adaware.
In response to Danial.Beta
I recently posted on virus troubles another person had, usually a step by step decent solution involves AVAST or AVG, however in this case it appears you may have encountered something past that.

Typically you disable System Restore, virii like to hide there and anti-virus programs play by the rules despite virii not. So anti-virus can't remove virii that choose to hide out in System Restore.

Once System Restore is disabled, run the scans again and hopefully anything malicious will be picked up and thrown out. If nothing's picked up, you may just be suffering from virus paranoia, this is a phenomenon often experienced by computer users after a close call with malware. If you wish to be perfectly safe, take a look at HijackThis and Rootkit Revealer, they're very good tools at telling you if anything's up or out of the ordinairy. If you're unable to understand the logs those programs create, feel free to PM the results to me and I can help translate them for.

Lastly, if you're not confident in AVAST, the only scanner I recommend aside from the two free ones is a virus-scanner called NOD32 by eset. www.eset.com is the website. NOD32 is commercial software though, but, I consider it to be the best of the best.
In response to Trinkit
The thing is I don't think it is paranoia since I did find a number of viruses. Not only that, even after I thought I got them all, my system was acting very odd.

It was taking 10 times longer for windows to boot up, I was having bouts of system lag, and when Windows first booted up, it would open up MIRC for like 10 seconds and then close it again. Lastly I kept getting these weird error message.

I actually did reinstall Windows XP after a full format and my system is running like the wind again.
In response to Revenant Jesus
Revenant Jesus wrote:
I actually did reinstall Windows XP after a full format and my system is running like the wind again.

Careful about that, sure reinstalling your OP will always fix any form of virus already present but geez losing everything on your computer is just what the virus wants! I mean that and your personal information and pissing you off.