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Help with removing Antivirus System PRO, and (possibly) adware


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#1 Metallic

Metallic

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Posted 07 November 2009 - 11:29 PM

I seem to be having problems with a fake antivirus program, and maybe some adware. The computer I'm using is shared between me, my mother, and my grandmother. When I got on to use it this evening, I noticed security alert messages popping up at the bottom of my screen. None of us can recall visiting any unusual sites, or clicking any odd links that might have led to an infection, so I'm kind of in the dark when it comes to the cause of the problem.

Anyway, the antivirus program goes by the name of Antivirus System PRO, and it keeps popping up with a badly misspelled Windows Security alert ("Windows reports that computer is infected. Antivirus software helps to protect your computer against viruses and other security threats. Click here for the scan you computer. Your system might be at risk now."). It also keeps asking me to activate the software.

Also, I'm assuming I've contracted adware. Internet Explorer opens up on its own and goes to sites offering viagra and other similar products.

Another problem I'm having, (and this may or may not be related to either of the previous problems) is that whenever I try to access an executable file, I get an error message telling me that filename.exe is infected. I've found that if I'm persistent enough, I can usually get the file to open after about 3 attempts.

Note: We have NOD32 antivirus software installed on our computer. It's updated, and it seems to be working fine. I'm running a scan with it as of right now, but it will be a little while longer before it finishes.

Also, I've run Malwarebytes. It caught 3 threats, which I deleted. Unfortunately, that doesn't seem to have done anything.

Any help you guys can give me would be greatly appreciated!

Update:

So, NOD32 finished scanning, and, not surprisingly as it let the thing slip through in the first place, it found nothing. I realized my Malwarebytes hadn't been updated in a while, so I updated and am in the process of running another scan with it.

Update 2:

Updated Malwarebytes finished its scan. It found 5 more infected items, and I deleted them. It asked me to restart my computer to delete the last of the files, so I did. When I logged in again, everything seemed to be okay. Then, the Antivirus System PRO started once again. The second Malwarebytes scan seems to have stopped it from hijacking internet explorer, at least, but I'm still getting fake alerts, and I still have a hard time opening executable files.

Edited by Metallic, 08 November 2009 - 11:06 AM.


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