Your post is a little thin on information and most crucially the process responsible (post this in your next reply) for the attempted connection.

I think it is similar to one from yesterday that I replied to, check this out and if the process involved is similar the name may be different but the format/style (random) and location should be the same. e.g. this example of the process responsible in the topic C:\USERS\ADRY\APPdata\Tocal\Temp\dat6248.TMP.EXE

http://forum.avast.com/index.php?topic=76126.msg629529#msg629529

If so start following the instructions I gave there and report in this topic, don’t post in the other one it will just confuse matters.