My Doom

•  It was a computer worm that affected microsoft windows.                                               when the computer became infected it appeared the message:
  "andy; I'm just doing my job, nothing personal, sorry,"  

•      It first appeared in january 2004.

•   It was estimated that 600,000 to 700,000 computers were infected with the worm.Mydoom and its variants are said to have caused $38.5 billion in damage.
  
•      Mydoom was an email worm. It worked as a message spammer. This mean it travelled through e-mail messages by transmitting a message which said "Error", "Mail Delivery System", "Test" or "Mail Transaction Failed" in many different lenguages.