How to anti-Obfuscated code

Author：jin can zhu from China

Source：http://blog.csdn.net/clever101

 

      Now many software makers have used allkinds of technoies to protects their softwares. For .net program, thesetechnoies include “Obfuscated code”. “Obfuscatedcode” include change the name of varibles and changethe logic of code etc.

 

     So how to anti-Obfuscated code? First you need tojudge your .net program whether add Obfuscated code.You can use Reflector、ildasm.exe（Micorsoft’s tool）or ILSpy.exe.If you can seethe normal .net code,they should not obfuscated code,otherwise they should obfuscatedcode.

 

     We call the tools for “obfuscated code” obfuscator. The main obfuscators of .net program include：MaxToCode、Dotfuscator and Xencode and so on.You can use DotNet Id.exe tocheck the .net progeam which obfuscator it used. Specifically ,you use DotNet Id.exe to open a exe or dll file and click Check itbutton, then the software will show the .net program use which obfuscator.As follow:

     Now you see the obfuscator. It is MaxToCode( see chart,above), for instance.Then you need to search the anti-Obfuscated code tools.formaxToCode, I recommend de4dot, itis a  powerful anti-Obfuscated code tool.