Security researchers discover 'indestructible' botnet   
      
   More than four million PCs have been enrolled in a botnet   
   security experts say is almost "indestructible".   
      
   The botnet, known as TDL, targets Windows PCs and is difficult to   
   detect and shut down.   
      
      
   http://www.bbc.co.uk/news/technology-13973805   
      
   --- Thunderbird 2.0.0.24 (Windows/20100228)   
    * Origin: Fidonet Via Newsreader - http://www.easternstar.info (1:123/789)