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Malicious Code: Trojan.Silentbanker

"The scale and sophistication of this emerging banking Trojan is worrying, even for someone who sees banking Trojans on a daily basis. This Trojan downloads a configuration file that contains the domain names of over 400 banks. Not only are the usual large American banks targeted but banks in many other countries are also targeted, including France, Spain, Ireland, the UK, Finland, Turkey—the list goes on.

The ability of this Trojan to perform man-in-the-middle attacks on valid transactions is what is most worrying. The Trojan can intercept transactions that require two-factor authentication. It can then silently change the user-entered destination bank account details to the attacker’s account details instead. Of course the Trojan ensures that the user does not notice this change by presenting the user with the details they expect to see, while all the time sending the bank the attacker’s details instead. " - Content courtesy of Symantec Security Response Weblog: Banking in Silence

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