CODEWITHSUNDEEP
androidreverse-engineeringapk
user1528688
user1528688

Reputation: 1

Unable to read decompress classes.dex file ?

I have download an apk from the internet and decpress it using dex2jarf tool so its gives compiled,.classes files which i convert into .java file through decompiler but it gives me classes toa proper way like it gives a.java,b.java c.java which is difficult to me read.Can i get proper classes name through apk file same as it is used in project.plz help Thanks

Upvotes: 0

Views: 351

Answers (2)

Caleb Fenton
Caleb Fenton

Reputation: 1214

There is no way to recover identifiers if they have been stripped out. Compilation is a lossy process, like converting a RAW image to a low quality JPEG. There's no way to go from JPEG back to RAW.

However, there are tools like jeb and ida that allow you to rename the classes yourself. When renamed, all references to that class also get renamed. This feature is sometimes called "refactoring". This is about the best way to do it, but it takes more time.

Also, there are plugins for jeb that help automate the refactoring by generating new, more descriptive names than 'a', 'b', etc. Here's an example from jcase, which you can modify to suit your needs: https://github.com/CunningLogic/myJEBPlugins/blob/master/DeCluster.java

Upvotes: 0

Maurice Gavin
Maurice Gavin

Reputation: 2057

What you are trying to achieve is called deobfuscation.

Programmers who wish to protect their intellectual property obfuscate their code to make it more difficult to read for those who might want to steal/copy/plagiarise their hard work.

Obfuscators replace these names with short, machine generated alternatives. Rather than seeing a call to dontAllow(), an attacker would see a call to a(). This makes it more difficult to intuit the purpose of these functions without access to the original source code.

Src: http://android-developers.blogspot.ie/2010/09/securing-android-lvl-applications.html

Upvotes: 1

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