Some have been corrected in streaming updates, the tier0_s.dll tier0_s.dll one is still outstanding.
Report it as a false positive:
There is an on-line contact form,
http://www.avast.com/contact-form.php?loadStyles for: * Sales inquiries; Technical issues; Website issues;
Report false virus alert in file; Report false virus alert on website; Undetected Malware; Press (Media), issues.
- If you are reporting an FP, then you get another input field open, click Browse button and navigate to the file to upload for review, etc.