Bertrand Anckaert Bjorn De Sutter Dominique Chanet Koen De Bosschere Steganography for Executables and Code Transformation Signatures. 425-439 2004 conf/icisc/2004 ICISC http://dx.doi.org/10.1007/11496618_31 db/conf/icisc/icisc2004.html#AnckaertSCB04