Unless a friend sends you a "shredder" for files stored on your pc or inbox, do not trust an email from an unknown user.

Apparently a Antivirus company has found a worm (the Baba-C worm) that spreads through mass email and tricks the recipients that their PC has porn stored. The email with the words "Windows Evidence Checker has found XXX material on your computer," boasts the claim that the program attached called "Evidence Cleaner" which will purge any porn from your PC. "When activated, this program runs malicious code that allows hackers access to the data on the computer."

A senior technology consultant at Sophos said "the e-mail carrying the worm has the subject line: "Important! XXX sites found on your computer!" It also contains the following text in the body of the message:

"Windows Evidence Checker has found XXX content on your computer. You can hide your activities with Evidence Cleaner service.

To run Evidence Cleaner click to quick shortcut attached.

Warning! Your copy of Evidence Cleaner will be expired after 7 days. Today you can register for FREE.

Please check attached instructions for more details."