These are completely bogus, they didn't come from Symantec and the attached ZIPfile is a virus.
Subject: Re: Submit a Virus Sample
Date: Fri, 26 Mar 2004 09:55:30 +0000
The sample file you sent contains a new virus version of mydoom.j.
Please clean your system with the attached signature.
Attached: signature.zip (pZIP/pZIP) (0007A893)
Novacaster Community Admin