http://www.eweek.com/article2/0,1895,1903971,00.asp...
...Basically, it seems that this article is saying that by sending you an email with a specially created RAR attachment, they would be able to comprimise and gain complete control of a computer with default settings without the user even opening the attachement - or even if the user chooses not to even read the email!
Bad. Very bad.
Wheeler recommends that users disable the scanning of RAR compressed files, including RAR self-extracting files.
Affected products include Symantec AntiVirus Corporate Edition 8.0, Symantec AntiVirus Corporate Edition, Symantec AntiVirus for Caching, Symantec AntiVirus for Microsoft Office, Symantec AntiVirus Scan Engine and Symantec BrightMail AntiSpam.
...Basically, it seems that this article is saying that by sending you an email with a specially created RAR attachment, they would be able to comprimise and gain complete control of a computer with default settings without the user even opening the attachement - or even if the user chooses not to even read the email!
Bad. Very bad.