"McAfee urges all customers to verify that they have installed and deployed the 4436 DAT [or higher] and/or the 4400 Scan Engine." While DAT file 4436 will detect the vulnerability if it occurs in-the-wild, it is better to permanently patch this security exposure by moving to Scan engine 4400.
McAfee AV LHA Vulnerability - Upgrade to Engine 4400 & latest DATs
http://us.mcafee.com/root/support.asp?id=4320_faqs
McAfee Virus Scan vulnerability for archievd files
http://msmvps.com/harrywaldron/archive/2005/03/19/39041.aspx