Turbodiff is a high-performance IDA plugin designed to detect differences between executable binaries. It works on architectures supported by IDA 4.9 FREE, IDA 5.0 through 5.5. Turbodiff was developed by Nicolas A. Economou, from the Exploit Writers Team of Core Security Technologies. The tool's page is: http://corelabs.coresecurity.com/index.php?module=Wiki&action=view&type=tool&name=turbodiff You can also read the presentation of Turbodiff at Ekoparty '09: http://corelabs.coresecurity.com/index.php?module=Wiki&action=view&type=publication&name=Heuristicas_aplicadas_a_la_comparacion_%28_diffeo_%29_de_binarios Buenos Aires, Argentina.