Problem with explorer.exe

Hello, I’m new to the forum although I’ve used AVAST for quite a while now.

I’m getting a problem, my avast is reporting a malicious url and linking it to the explore.exe file in windows.

It is blocking the “malicious url” but I don’t appear to be getting any other symptoms of a virus, other than a link to a file in the prefetch folder called IEXPLORE.EXE-27122324.pf

Whenever I boot up the PC, and do a search, it shows this particular file with an up to date time. It appears to relate to a script error, which I got last week when I tried to download a music track from youtube, and does this whenever I try to do it again. I recently updated my java? if this helps, which I don’t normally do in case it causes a problem.

Any help will be appreciated, thank you

try this and post the log

Malwarebytes Anti-Malware 1.50.1 http://filehippo.com/download_malwarebytes_anti_malware/
always update so you have latest database before you scan
click on the remove selected button to quarantine anything found