DarkBlizz

you can go to yore anti-virus control panel and add as an exception from scans
and u can restore it from quarantine
you soul be able to play after these steps

hi
there 2 files that when you try to connect while in the sc2 beta that are used from cache

C:\Users\User\AppData\Local\Blizzard Entertainment\Battle.net\Cache\36\b2
36b27cd911b33c61730a8b82c8b2495fd16e8024fc3b2dde08861c77a852941c.auth

and

C:\Users\User\AppData\Local\Blizzard Entertainment\Battle.net\Cache\8f\52
8f52906a2c85b416a595702251570f96d3522f39237603115f2f1ab24962043c.auth

i edited them with Notepad ++  and made the server to re check the files and probably replace them.

in the files the are information about the user b.net account and the player, password check and other stuff but if someone can use this maybe we'd be able to make a bypass
keep up the good fight