This is not a virus, but a version of the Good Times hoax. It was started by a message posted to some usenet newsgroups in February 1997. The original message was like this:
Hey, just to let you guys know one of my friends recieved an email called "Join the Crew," and it erased her entire hard drive. This is that new virus that is going around. Just be careful of what mail you read. Just trying to be helpful...
Ignore these messages and do not pass them on.