I’ve just downloaded Avast anti-virus Home. The scan detected two viruses and I deleted both files. I think one was a vundo trojan. What I’d like to know is why the On-Access Scanning in real time is causing me to lose my internet connection? I know it’s this that’s causing the disconnection because when I terminated the On-Access Scanning my internet connection came back. I’m sorry if I can’t explain this better as I’m a bit of a technophobe.
Thanks in advance for your help.
do you use any firewall?
I use my Windows firewall and I’m also using McAfee Security Centre if that’s any help.
Check if into the firewall settings, the following programs should be allowed to connect:
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe (avast! Web Scanner)
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe (avast! e-Mail Scanner Service)
C:\Program Files\Alwil Software\Avast4\Setup\avast.setup (avast! Update executable). This is a temporary file that just appears when an update (check) is about to launch, and disappears again afterwards.
About the infection:
Please download VundoFix.exe to your desktop.
Double-click VundoFix.exe to run it.
When VundoFix re-opens, click the Scan for Vundo button.
Once it’s done scanning, click the Remove Vundo button.
You will receive a prompt asking if you want to remove the files, click YES
Once you click yes, your desktop will go blank as it starts removing Vundo.
When completed, it will prompt that it will reboot your computer, click OK.
Note: It is possible that VundoFix encountered a file it could not remove.
In this case, VundoFix will run on reboot, simply follow the above instructions starting from “Click the
Scan for Vundo button.” when VundoFix appears at reboot.
A log will be produced which you can post in your next response.