Worm.Win32.WBNA.briq not detected

AVG Protection
3

Hello Gerard.
We would request you to have a look at this article http://support.avg.com/SupportArticleView?urlname=What-to-do-when-I-suspect-an-undetected-file-is-infected . Thank you.

1

Got a message from a user downloading a zip file for installing an application:
Kaspersky
Worm.Win32.WBNA.briq detected.
AVG says this file is clean.
How come?

2

Hello Gerard.
We would request you to have a look at this article http://support.avg.com/SupportArticleView?urlname=What-to-do-when-I-suspect-an-undetected-file-is-infected . Thank you.