afd.sys - infected or not?

On demand scan says Alureon-FZ. On Virus total only Gdata marks it as virus (besides Avast 4.8/5.0).
File is located in system32/drivers, 331kb, Win7-32.
False positive?
Where can I submit samples like this for examination to avast?

send to virus@avast.com in password protected zip.file and write the password in the mail
Subject: possible false positive