Be warned to be on the lookout for e-mails with the subject header "FW: " - there's a new variant of the LoveBug virus on the loose.

Like the previous virus, the VBS.NewLove.A is a worm, and spreads by sending itself to all addressees in the recipient's Outlook address book when it is activated.

There will be an attachment with the e-mail, whose name is chosen at random, but will always have a .Vbs extension (this can't be seen in the subject header).

Upon each infection, the worm introduces up to 10 new lines of randomly generated comments in order to prevent detection.

The virus is also known as VBS/Loveletter.ed, VBS/Loveletter.Gen, VBS_SPAMMER, and VBS.Loveletter.FW.A.

More information is available at www.symantec.com.