hacking or cracking an android app is a easy part with XDA AUTO TOOL ..
search and download and install this tool ..
Process
Step One – Decompiling The APK File
Open the xdaAutoTool folder and run the program. It will prompt you to install a file called “framework-res.apk.” Ignore this. Close the program.
In the xdaAutoTool folder you we see a bunch of folders appear after the program ran. Look for one called “_INPUT_APK.” Put your APK file in the folder and run the program again. Press “Decompile All” located on the left side of the program window.
xdaAutoTool will decompile the APK file and create a new directory in the _INPUT_APK folder.
Step Two – Finding Your Target
Are you ready to be introduced to Smali code? Don’t worry! It isn’t too difficult once you realize what’s going on in the code. Java can’t be decompiled back into the original source code, it can, however, be decompiled into something called Smali code.
Navigate back to the _INPUT_APK directory and open the new folder (it will have the same name as the APK file). Once there, you will see a directory named “smali.” This is your target. Depending on your intentions, you will need to sift through the various files and folders in the smali directory until you locate the code you would like to modify.
For example, if you are trying to increase the firepower of a turret in an Android game, you will need to find the file for that turret. These directories are structured. You will probably see quite a few directories containing files used for advertisements, etc. One you discover the actual game directory, everything you need to alter will be in there.
How to change smalli code
now again open xda auto tool after edit changes and recompile and build your changes
You done ..........
Related
OK, So I've gotten to breaking down and recompiling those pesky .dex files, but I've run into a new problem.
This is a noob question, I'm sure, but .so files look like unformatted, binary files. How do I open then, edit them, etc? I need to read whats going on in my libs. :-(
Are these X11? I'm running ubuntu 10.04 x64 - so those could be difficult.
ie - unreliable 64 bit support.
$ sudo ln -s /usr/lib32/libX11.so.6 /usr/lib32/libX11.so
Click to expand...
Click to collapse
They're native library files, so platform specific machine code I imagine. Look for an ARM disassembler. I'm not familiar with linux internals, so don't know how you find the entry points, but it obviously will be widely documented. Is it impossible to obtain the source code? Assuming most are written in C/C++, reverse engineering from the machine code is not something I'd describe as a pleasant experience. If the source was well written assembly language & not too big, it can be almost enjoyable I guess. But then TBH walking through a randomly selected programmer's source, let alone object, files scares me, in a Tim Burton inspired bad trip kinda way. If you can find the source, it will be an order of magnitude less painful.
Try IDA Decompiler, it should disassemble all so files!
Most of the libs are open source in the aosp. Some are proprietary blobs with the only solution to them being reverse engineering.
.so disassembly
i know how to disassemble it
you will need orion's easy apk disassembler and apk manager
i've tested it once and it worked, but there´s a problem, i dont know how to re-assemble
1- rename the file .so to .apk like "libtestlib.so" to "libtestlib.apk"
2- put in the folder "place-apk-here-for-modding" of apk manager
3- open script.bat (or something like this) from Apk manager
4- use extract apk option
in the beggining my images inside the lib was corrupted so i used step 5 to fix
5- use option optimise images inside to fix images
6- go to project folder and copy classes.dex file to the root of easy apk disassembler's folder
7- open EasyApkDisassembler.EN.bat and use the "DISASSEMBLY a classes.dex with smali" option
8- give a name to the folder (like "libtestlib")
9- it will create a folder (like "out_libtestlib") with the disassembled files
Orion's easy apk disassembler http://forum.xda-developers.com/showthread.php?p=5826401
Apk multi tool (almost the same as apk manager) http://forum.xda-developers.com/showthread.php?t=1310151
I've tried to open libsurfaceflinger.so from my device with 7zip, and it worked too
thats it
@gkillershots
not working
i renamed .so to .apk and used extract option but getted error :
Processing archive: C:\APKMultiTools\place-apk-here-for-modding\libnative-lib.apk
Error: Can not open file as archive
"An Error Occurred, Please Check The Log (option 26)"
things you'll need
APK MANAGER
7zip
DESCRIPTION :
Q : Basic
A : The icons are stored in the Drawable-mdpi folder in the framework.
these icons are linked to XML's in Drawable folder
if you just add the icons and don't change the xml, you'll get nothing.
Q : Why Cant we just Edit the XML files?
A : The XML files are encrypted. if you try to edit it you will get weird characters.
Q : No XML No Edits, Are we Done?
A : Yes, No XML No Edits. But we've a walkaround. The APK MANAGER
it decompiles the apk and unencrypts the xml file.
BASIC :
Extract the contents of APK MANAGER to any folder
you'll have few folders
place your apk in the place-apk-here-for-modding folder
open Script.bat
and chose option to decompile and minimize
it will create a folder namely PROJECTS
now you can edit the xml files
after your done, maximize the apkmanager window and choose comiple apk
HOW TO ADD MORE PNGS :
if you want to add pngs like the battery percentage you'll need to link the png to the xml file
this can be done by two ways
1. assigning resource_id
&
2. directly putting in the names
the 1st method is easy but complex so forget it
the second method is simpler.
just find the xml file corresponding to the png and than simply add the name.
for eg.
stat_sys_battery.xml is the battery status xml.
<item android:drawable="@drawable/stat_sys_battery_0" android:maxLevel="0" />
Click to expand...
Click to collapse
here the
android:drawable is the android code
and
@drawable/stat_sys_battery_* is the file location
check the attachment for better understanding
Click to expand...
Click to collapse
THE PROBLEM & THE SOLUTION :
if you try to edit any modded framework file you'll get error while compiling.
and your phone will hang if you use that file.
SOLUTION
instead of using modded file. use the STOCK framework. Edit your files and compile your apk
now when you compile it, it will give you few options
1. is it a system file [y/n]
choose yes
2. (...blah blah.. do you wish to keep files)
choose yes
now it will extract the stock (unedited) framework in a KEEP folder
minimize the window
open the folder and delete all the files you modified.
if you had modified xml file you'll also need to delete resources.asrc
now maximize the apkmanager window and press any key.
your modded apk will be compiled in the place-apk-here-for-modding folder
PS : IT WOULD BE UNSIGNED
LAST STEP :
open the compiled unsigned apk and extract all the files you edited (including resources.asrc)
simply replace these files in the framework-res.apk you wanted to mod
only part to take care is the resources.asrc file you don't have to replace it directly
do this steps for replacing resources.asrc
1. right click the resources.asrc
2. select add to archive
3. archive format zip
4. compression method Store
5. select the path of your framework-res.apk
I know this all seems way to complex but if you read carefully and do it step by step, its all easy as a PIE
So i have this Deskclock.apk and i want to add this.
No Problem with the ".xml" Files. I can edit them easily after i decompile the apk with the "apkTool". But where will i find the ".java" Files? After decompiling the apk i only see ".smali".
So i found out that the ".java" files are in "classes.dex" from the apk.
I use "dex2jar" to get a ".jar" File.
Then i use "jd-gui" to get ".java" Files.
So i can edit it and put the needed Strings in the .java files.
But how to put them back to a "classes.dex" File which i can put back to the apk??
I hope i get a bit help here.
You can use APKTool. It will automaticly extract all the classes (.dex), resources (.asrc), then it will convert binary XML to human-readable XML, and it will also dissassemble the classes for you.
Just tell APKTool to decode the APK into a directory, then modify what you want, and finally encode it back to an APK. That's all.
Important: APKTool dissassembles. It doesn't decompile. The generated code won't be Java source. But you should be able to read it, and even edit it if you're familiar with jasmin. If you want Java source, please go over the Manual way.
Sent from my VS910 4G using XDA
Thx...I know how to use APKTool but i need to put the ".java" Files back into the "classes.dex". Thats my Problem.
There's info on the process here: http://stackoverflow.com/questions/10261147/converting-java-back-to-classes-dex
Essentially it looks like you need to compile the .java to .class files with javac and then create classes.dex with dx. Hope this link is helpful.
this is gonna sounds stupid but i followed every step but i cant seem to get the file to be only ApplyRecovery.bat, thats how i named the files but it does only open notepad....like if it was reading ApplyRecovery.bat.txt
Step 5: create a text file using notepad, called ApplyRecovery.bat. Make sure it is not named "ApplyRecovery.bat.txt" . It will contain the following lines (copy/paste is fine)
i did it finally
For future reference, it might help others if you explained how you solved your problem. For example, given this issue where the file is opening in notepad, one of the following possibilities is apparent:
1. When saving the file, you did not enclose the file name in quotes, e.g. "ApplyRecovery.bat". Enclosing the file name in quotes overrides the automatic generation of extensions and saves the file exactly as you wish.
2. Batch files, files ending in .bat, were set to open in notepad instead of being ran when double-clicked. This would by necessity require you to delete the file association before the batch file would work.
Hi, let me explain.
I'm translating a gamebook app for Android. So far I've managed to decompile the .apk file, find and edit the .xml files with storyline, but I cannot find the files that contain the data about the app menu buttons (options, settings, save/load etc.). The decompiled game folder contains following folders:
- assets (.xml files with story)
- original
- smali
- smali_classes2
- unknown
- AndroidManifest XML document and apktool YML file
I tried opening random smali files with EditPlus, but couldn't find anything. Any tips how can I edit those buttons? Where to find the code? I just want to change the text to another language.