Cyber criminals have created a highly sophisticated Trojan virus that steals online banking log-in details from infected computers.
The Clampi virus, which is spreading rapidly across hundreds of thousands of computers in Britain and the United States, infects computers when users visit websites that host a malicious code.
Once on the computer, the virus sits unnoticed until the user logs on to bank, credit card or other financial websites. It then captures log-in and password information and sends it to a server run by the attackers. They can then tell the compromised computer to send money to accounts that they control, or they can buy goods with the stolen credit card details.
The trojan has a list of more than 4,500 finance-related websites that it monitors, including British high street banks. Security experts warned that it was one of the stealthiest and most pervasive threats to computers using the Microsoft Windows operating systems.
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