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Item type:Publication, Access status: with files , USB devices phoning homeUSB is a versatile standard defining various features to allow maximum flexibility for evices. This flexibility, by design, leads to complex device configurations, combining multiple functions into one, making it impossible for users to identify the function of a device by its looks. This can be exploited by crafting programmable USB devices, looking and behaving like an ordinary flash drive that also expose virtual network devices and other functionality to their host OS. This paper outlines such a device, exploiting several USB features to establish a rogue HTTP channel used to leak data stored on the device’s disk to an internet back end. We describe the device itself and its architecture and our conclusions and methods for dealing with the issues presented in a user–friendly way.Publicationtype: Working Paper1627 1101 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , USB - an attack surface of emerging importance(2015-03-03); USB is one of the most widely adopted standards for buses. Little work regarding its security implications has been published. This work provides a brief summary of known issues as well as a documentation of new problems and possible future threats. The discovered issues have been classified and possible solutions have been discussed. During the research a secret channel for data exfiltration, as well as command and control has been designed and implemented. The results reveal the necessity of further research and development to address critical security issues.Publicationtype: Bachelor Thesis815 1175