http://gdtr.wordpress.com/2012/10/03/decv-a-decompiler-for-code-virtualizer-by-oreans/ DeCV was well tested on small, synthetic binaries protected with Code Virtualizer 1.3.8. There are some bugs in IDA that might require manual intervention during the deobfuscation process — see the README. Sources on github Typical decompilation output on pastebin.