Avast infected by virus?

Avast Free Antivirus / Premium Security
1

good day
I am Brazilian, and I will try to communicate with you using a google translator.

I’m in computer technician, and I noticed that several of my clients who use the free Avast anti virus is something fishy going on.
Both use the Windows XP Operating System Professioanal, note that the mouse is flashing constantly, showing an hourglass.
And in the task manager in the tab “Processes” note that appears constantly and add a file named sf.bin
Since my clients have several PCs … in this case only a few

If I pause the anti-virus Avast Free your mouse is normal … and the process to run.

That would be a virus or malware?

2

You can also post in the Portugês forum if it is easier for you: http://forum.avast.com/index.php?board=27.0

DJBone

3

Most probably it’s not a virus.
I suggest an installation from scratch to repair any issues in the avast! installation.

  1. Download the latest version of avast! Uninstall Utility and save it.
  2. Download the latest avast! version and save it.
  3. (Optional) If you want, save your avast! settings for later restoration (Settings > Maintenance > Back up).
  4. Uninstall avast from Control Panel (if possible). If, for any reason, you can’t run it, try booting in Safe Mode and doing it from there. Anyway, boot after that.
  5. Run the avast! Uninstall Utility saved on 1 in Safe Mode. Boot after you’ve run it. Repeat this for any major avast! version you have ever installed/upgraded in your computer.
  6. Install avast! using the setup saved on 2. Boot.
  7. Register your free copy or add the license key for Pro. Or even upgrade your key from old versions.
  8. Check and post the results. If, for any reason, you did not solve, try doing the step 3 in Safe Mode anyway.