Macintosh Unix operating systems are unaffected by this virus. The Visual Basic script of the virus is tailored for, and is peculiar to, Microsoft Windows operating systems. This virus is pernicious, using Microsoft Outlook and Outlook Express to send itself to everyone on a Contact List from these programs, and destructively replacing files. Your computer will not become infected unless you open the attachment on purpose. Reading the email won't infect your computer.
More information is forthcoming.
If you have been infected by this virus, a manual recovery procedure is detailed below. The procedures here have been tested, and appear to work. There is still a chance that the messages in your Outbox were not sent yet. If there is an entry for Timeout, delete it. I did not have this, but the source code looks like it may exist.