New security features designed to keep its more than 110 million users safe debut in Avast 6, released today exclusively from CNET Download.com. They also have the added benefit of raising the competitive bar in computer security by pushing more and better free options to users.
Avast Free Antivirus 6,
Avast Pro Antivirus 6, and
Avast Internet Security 6 all feature the new AutoSandbox and the WebRep browser add-on. (Click the links to get to the download page.)
The debut of the AutoSandbox makes Avast the second antivirus to offer a sandboxing tool for free. Comodo introduced a sandboxing tool in January 2010. Avast's sandbox probably works differently, as Comodo has a pending patent on its version. And certainly, one of the most frustrating things about sandboxing technology is that there are some indications that it doesn't work perfectly.
All that being said, Avast's version automatically places programs into a virtualized state when it suspects them of being threats. It walls off suspicious programs, preventing them from potentially damaging your system while allowing them to run. Avast's sandbox allows the program to run, while keeping track of which files are opened, created, or renamed, and what it reads and writes from the Registry. Since permanent changes are virtualized, so when the process terminates itself, the system changes it made will evaporate.