Blackworm is a nasty internet worm which can delete DOC, XLS, MDE, MDB, PPT, PPS, RAR, PDF, PSD, DMP, and ZIP files. In addition to Blackworm, the worm has been named Kama Sutra, Blackmal, MyWife and Nyxem. This worm started on the 3rd of February and has been programmed to attack an infected computer on the 3rd of every month thereafter. So far it has been estimated that over 300,000 computers all over the world have been infected. Besides destroying those types of files, the worm also tries to disable anti-virus software so that it stops updating. It can also disable the keyboard and mouse of infected computers. Some Internet users have already lost important files after becoming infected by the Blackworm mainly because the clock time on their computer was wrong.

Like many Internet worms, Blackworm attempts to spread by mailing itself to contacts in a user's address book. The e-mails containing the worm can have a wide variety of subject fields and attachment names. The worm also tries to add itself to the auto-start programs in the Windows registy. Once a computer in a network has been infected, Blackworm will try to infect all other systems in the network.

To prevent getting infected by Blackworm you shouldn't open attachments or click on Web links within these e-mails, especially if these e-mails have a porn-related subject line. Use caution before opening any e-mail attachments, even if you know the sender. You should also backup any important files that you want to preserve. Most antivirus products will detect Blackworm assuming the worm hasn't disabled the antivirus software. Because of this, it is important to frequently update your antivirus software. It is also recommended to scan your computer for viruses and use a firewall. To prevent the worm from spreading to other computers in a network, you should use strong passwords on all the users accounts.


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