Something that I also noticed since posting the image, the file version in properties is unchanged from 4.7.936 and not the latest 4.7.942, unless the changes didn't effect these files, which I doubt.
This missing 'Company' might also have been why some of the avast entries were detected previously by HiJackThis as unknown owner. This should have changed as ashWebSv.exe and ashMaiSv.exe now have the 'Company' Item name: entry, but HJT still detects them as unknown owner.