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Date: Thu, 17 May 2007 15:56:39 +0000 (UTC)
From: "" <>
To: <>, <>
Subject: Re: Defeating Citibank Virtual Keyboard protection using screenshot

> If malware is running on the user's computer, can it change the
> destination of a funds transfer invisibly to the user, and still 
> the verification work?

Theoretically, this is possible. An advanced client-side MITM attack 
could be crafted, altering packets on-the-fly and returning a false 
confirmation page.


normal response: "$100 USD has been transferred from to"
altered response: "$100 USD has been transferred from 

-John Martinelli Security

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