Anti-virus experts warn for a new variant of the Sober worm that is spreading quickly over the internet. The new Sober.M worm sends e-mails with the subject line "I've got your e-mail on my account."
The whole mail is written in either bad English or German - possibly to deceive people the e-mail is not a virus. It contains a .zip file called your_text.zip, if a user opens the file the worm will send itself to all contact persons of the victim.
The worm also gathers e-mail addresses of victims and sends them back to its anonymous author. This is known as harvesting and these lists are mostly sold to spammers.