Avast Warning on Yahoo Messenger

Hello Friends,

This is something that has never happened before.

Today, everytime I am starting the Yahoo Messenger and trying to perform any action on it like clicking on a contact to send an IM, trying to log in to a chat room etc, I keep getting a warning message from Avast, moreover I can’t seem to move the infected file to chest

I did a boot scan today morning itself but this warning seems to be popping up everytime I log in to Yahoo Messenger

This is the warning message I get from Avast

http://farm3.static.flickr.com/2767/4218246947_2ea5f12942_o.jpg

…and this is the message I get when I try to move the infected file to chest

http://farm3.static.flickr.com/2545/4218247003_3304a36062_o.jpg

Anyone seen this before - do you think this is a genuine warning or a false positive because I have never gotten such warnings off Yahoo Messenger before.

Any help on this would be highly appreciated.

Thanks!

http://forum.avast.com/index.php?topic=52692.0