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A new malware variant called Silon is targeting Internet Explorer users, attempting to intercept their sessions and steal credentials. "Researchers at security vendor Trusteer Inc. issued an advisory warning that the Silon Trojan can detect when a user initiates a Web login session in Internet Explorer. It intercepts the login session, encrypts the data and sends it to a command-and-control server where it is collected with credentials from other victims. In a more sophisticated attack, the Trojan targets people logging into their online bank accounts. New York, N.Y.-based Trusteer said Silon can inject sophisticated dynamic HTML code into the login flow between the user and their bank's Web server. The method involves using a webpage displaying a phony message asking the victim to verify their login details. If the victim complies with the request, the login credentials are sent to the command-and-control server, said Amit Klein, chief technology officer of Trusteer. "