Permutation Steganography in FAT Filesystems

Chapter
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8948)

Abstract

It is easy to focus on elaborate steganographic schemes and forget that even straightforward ones can have a devastating impact in an enterprise setting, if they allow information to be exfiltrated from the organization.

To this end, we offer a cautionary tale: we show how messages may be hidden in FAT filesystems using the permutation of filenames, a method that allows a hidden message to be embedded using regular file copy commands. A straightforward scheme, but effective. Our experiments on seven different platforms show that the existence of the hidden message is obscured in practice in the vast majority of cases.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • John Aycock
    • 1
  • Daniel Medeiros Nunes de Castro
    • 1
  1. 1.Department of Computer ScienceUniversity of CalgaryCalgaryCanada

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