I have noticed that if you rar (zip) a piece of malware that is normally detected by Prevx, Prevx will no longer detect it. This is rather disappointing, but I guess that's what you get for using cloud technology - my guess is that Prevx has very poor archive analysis depth. Good thing I use Avira as my primary on-demand scanner. The reason why this is most disappointing for my purposes is that a lot of newly introduced files on my system (sandboxes) come in archive format (.rar). Any comments on the above? Am I mistaken? Thanks for any replies.