Dear development team,I am a Chinese user.
last day, I tested avast internet security(version 5.0.507.0 ) in vbox.I ran a virus in sandbox,then the virus file had been writen into the windows folder.Before I ran this virus,I tested other applications in sandbox,the files that released by these application had been isolated in the avast's sandbox folder.The virus file which had been writen into the windows folder means the sandbox has some defect.
Then,today's morning,I tested the lastest version--533,it was same as 507.
If you want,I could send the virus file to you.
P.S.:My English is poor,maybe I don't describe clearly,I am very sorry about this.