I experienced a webpage redirecting to a fake Java update page. At the same time, Avast detected two threats. I believe that one was a webpage and the other a file on my computer. The file is named B21Geq81.exe.part, is infected with the Win32:Malware-gen virus, and is in the Avast virus chest.

I have attached the AdwCleaner log file. Thank you for your help, essexboy.