From Bullguard:
Bertha
Another variant of the computer virus Bagle has been quickly making its way across the Internet, BBC News reports.
Anti-virus firm MessageLabs gave it a "high outbreak" rating after it caught more than 850,000 copies by Wednesday.
The Bagle bug arrives as an empty e-mail. If the attachment is opened, it releases a Trojan which downloads the actual virus from various locations.
Security experts said computer users should protect themselves by ensuring anti-virus programs are updated.
About 80 variants of the original Bagle worm, which first appeared in January 2004, have been released on the Internet.
Click here to read the full story. http://news.bbc.co.uk/1/hi/technology/4599501.stm
Bertha