Posted inAndroJava Programming
T-REX: Playing with Dino!
I hardly play the dino game which is created by Google and is available in…
Posted inAndroJava University
Smali Code Injection
In this post I wanted to demonstrate a simple code injection example in Android. As indicated in previous posts about reversing java, the method of code execution is same in Android. Whereas Java, the BYTE CODE are SMALI codes here and the executor is Dalvik (recently ART) in Android (not JVM). Here in this post, I will describe shortly how to reverse and inject code in SMALI.
Posted inAcademic AndroJava Programming
Reversing Java: Part III
In the previous tutorials, I’ve described the simple Java byte code structure and stated to reverse a simple Hello World Java application. In this tutorial, I will describe the remaining parts of the class file.
Posted inAcademic AndroJava Programming
Reversing Java: Part II
In the Reversing Java: Part I, I’ve described the main structure of Java class file bytes. In this part, I’ll continue decompiling the HelloWorld example.
Posted inAcademic AndroJava Programming
Reversing Java: Part I
Recently I’ve interested in byte code structure of Java and Dalvik. I’ve found some useful tools for playing with them.
Destination Byte Code
Java byte codes are simple to reverse engineering because they compile in run time. i.e. JVM will execute the byte codes in run time, thus Java code is cross platform but executes with more delay than direct compiled machine codes (for example using C++ and gcc).