Help needed for Malicious URL Blocked

Hi, I’m needing some help/advice on what to do here:
I’m constanly getting Malicious Url Blocked, (for 2 sites,) messages from avast anti virus (every 20-30 secs).
Info is
Infected: URL: Mal
Process: C:\ProgramFiles\Google\Chrome\Application\chrome.exe and C:\ProgramFiles\InternetExplorer\iexplore.exe (the last one is being blocked more than the 1st)

I’ve run a quick scan, got 1 infection, thats in the virus valt now, but still geting bad messages, alot

Any help would be very much apreciated
Thanks

follow this guide and attach the requested logs …not copy and paste http://forum.avast.com/index.php?topic=53253.0

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