BadTrans installs itself in such a way to virtually guarantee it's activation on a reboot. For example, on Windows 9x, BadTrans modifies both the Registry and the WIN.INI file to ensure its continued infection. The file should open in Notepad. Modifying the registry should not be attempted unless you are familiar with the underlying principles of the registry. Unfortunately, stories like Karen's are all too common.
Email is a veritable conveyor belt for viruses, facilitating their rapid distribution.
Email-borne viruses often appear to be from someone you know. Keep your antivirus software updated. Had I thought more seriously about the partial message and the peculiar phrase added, I might have not opened it at all. MailDefense provides no hassle protection that never needs an update. MailDefense takes the worry out of email.