Has this been added to the def’s yet? read about it on Cnet.com
Start Avast > Menu > Virus Library
You can check for yourself. But remember that different av software vendors give differened names to malware.
VGREP is very usefull to see who is naming malware what.
You can also look at the VPS history
I don’t know what you call Beagle.AZ (which scanner’s nomenclature you’re using) but avast currently detects all Bagle/Beagle variants to date.
Vlk here is a small quote from the article
Bagle.az (w32.bagle.az@mm, also known as Bagle.am (Trend Micro) and Bagle.ar (Symantec),