help on klez

i recieved an email today telling me that the atachment was a klez antivirus and that i only needed to run it once and i would never get the klez worm i have not opened the attachment and wondered if anyone could tell me what to do.
the email was from "Mailbox"
many thanks
jan

delete it, fast!

its deleted
dont understand why people send these emails
thanks
jan

Hi Jan, I get at least two Klez virus attempts a week. They usually look like they are sent by someone you know but the "from" address is taken at random by the virus. So you don't really know who it is coming from. There are a lot of sick people in the world that start those vicious virus attacks. Don't ever open any attachment that you didn't expect and be careful about the ones that you do expect.

People don't send them, viruses do that themselves. That is how they spread themselves. They don't require human participation. And the from and to email addresses are simply harvested from the address book and from web pages. So you can't believe who it tells you the sender is. Be very wary of email attachments.