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Unable to update Antivirus/Spyware, or use CMD/Regedit

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#1 MulderNZ


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Posted 27 April 2009 - 11:58 AM

The trouble I am having started with my anti virus not being able to update. I use AvG 8.5. The error received is server access forbidden. It started out with connection failed, during the update and unable to access the internet at the same time. Now it has progressed into the access forbidden, when running the update, but I can access the internet. I am, also, unable to update Malwarebytes. Spybot and Superantispyware, both, updated fine. I scanned with Malwarebytes (dated from 4/6), Spybot, and Superantispyware..and ran ATF Cleaner...all squeaky clean, nothing found. I booted into safe mode and no change at all. I did a system restore to the day before and no change, no change at all. In the system restore calendar, there were no updates or software changes listed for the couple of days before and day after the initial trouble, just the daily snapshot. I uninstalled AvG, in hopes that it was the trouble maker, but I can't reinstall it. It give an error stating that it is unable to write into the registry, which lead me to the discovery of the next troubles. I am unable to access CMD prompt and regedit,as well. When both commands are typed in, it "resets" explorer, for the lack of a better way to say it, causing everything to disappear and then reload, closing most windows along with it. I also noticed that every now and again, when I did a search for something on the internet, it would not take me to where it had said, as if it was hijacked but I hit back and then the link again and it works fine.. which made me think spy ware, or maybe some spy ware that didn't install fully. The computer runs Windows XP Professional. It is on a domain, where all the other pc's are not having any trouble at all..only this one. The user has admin rights, as well. I'm sure I forgot something, but that is all I can think of atm. Windows updates are up to date.

Thanks in advance..

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#2 garmanma


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Posted 27 April 2009 - 09:29 PM

When you cannot update

Since you cannot use the Internet, manually download the definition updates from another computer, save them to a flash (usb, pen, thumb, jump) drive or CD and transfer to the infected machine. Then just double-click on mbam-rules.exe to install the update. If you cannot transfer or install from the infected machine, try installing the file directly from the flash drive to your machine.Mbam-rules.exe is not updated daily. Another way to get the most current database definitions is to install MBAM on a clean computer, launch the program, update through MBAM's interface, copy the definitions (rules.ref) to a USB stick or CD and transfer that file to the infected machine. Copy rules.ref to the location indicated for your operating system.
  • XP: C:\Documents and Settings\All Users\Application Data\Malwarebytes\Malwarebytes' Anti-Malware
  • Vista: C:\Documents and Settings\Users\All Users\Malwarebytes\Malwarebytes' Anti-Malware
If you cannot see the folder, then you may have to Reconfigure Windows to show it. Then perform a new Quick Scan in normal mode and make sure you reboot afterwards. When done, click the Logs tab and copy/paste the contents of the new report in your next reply.
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