Do You Hear What I Hear: Audio Frequencies as a Covert Communication Vector

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Presented at YouShotTheSheriff 2014 by

Ben April

Based on the work that led to this blog post: http://blog.trendmicro.com/trendlabs-security-intelligence/do-you-hear-what-i-hear/ Stories BadBIOS talks about the transmission of data on the sound hardware of common computers. This lecture will examine how communication works like this, some of the detail traps, which is necessary for infected devices to communicate this way, and how it can be detected in the field. Also a demonstration of the system in action and a test will be included tragically unscientific hearing. Depending on the weather we could also deepen key attacks audio extraction just published.