Like a lot of people I too have been getting avast! pop ups telling me that svchost.exe is trying to download files from anythicago, simplesitescan, alwaysisobar, bestdriverstar, and opticguardzip. I have scanned with avast, Malware Bytes, ADWcleaner, and Windows Defender (whatever that was worth). They all came back clean, The requested files are attached. Aswmbr took 3 attempts before finishing the scan without crashing, I don't know if that means anything.
Thank you for your help.