Security Firm Warns of Computer Infections

Hackers have embedded a malicious program disguised as a movie clip on 2,000 commercial and home computers, positioning themselves to launch an attack to shut down Web sites, according to security experts who alerted the government. The hackers, who use the nicknames “Serbian” and “Badman,” tested their network of infected computers Wednesday night and could launch an attack at any time, according to Network Security Technologies. The firm said it provided the Justice Department with a list of 2,000 computers worldwide that have been infected with the program. The company first learned of the hackers’ plans when the vandals tried to penetrate one of its computers.