Help Needed - Virus/Worm

Hi guys,

I’ve got the attached pop up window, I scanned my system with both Ad-Aware SE Personal and Spybot Search, plus made a scheduled c/ scanning (before re-booting), I thought I got rid of it, but it popped up again, the window is still there, what can I do?

Thank you
Alex ???

When did you get this warning?
The dialog comes from the Web Shield - meaning that a dangerous file was detected on a web page before it got downloaded to your computer. So, your computer is not infected, avast! only stopped the download.