Questions tagged [apk]
Android Application Package is the package file format used by the Android operating system for distribution and installation of mobile applications.
105
questions
2
votes
0
answers
90
views
Reverse engineering a flutter built apk
I was trying to reverse engineer an apk built with flutter. I actually feel like reversing flutter built apps did not get much reverse writeups on the community. one of the tools for the task ...
- 219
1
vote
1
answer
52
views
How do you identify a software framework?
I downloaded a free app but I want to stop it from showing ads.
https://www.statista.com/statistics/869224/worldwide-software-developer-working-hours/
Apparently it's almost certainly in one of the ...
- 109
-1
votes
0
answers
51
views
How do you edit an APK file so the app won't show ads?
I was referred here by the Android exchange.
Can I just say, people really would be modding androids in the 21st century. Who'da thunk it.
- 109
1
vote
0
answers
91
views
Extract assets images from a games APK [closed]
I'm trying to remove some images from an android game, but when I try to view them in a hexadecimal viewer I see that they don't contain a PNG header, so I can't view them through the python PIL ...
- 11
1
vote
0
answers
58
views
deobfuscate Dexgaurd obfuscated code
I was reversing an apk. the code detects whether the apk is running on a rooted device or not. if it is rooted or an emulator it will stop and close out. so this is the snippet code which I think it ...
- 219
1
vote
0
answers
93
views
Inverter BLE communication module receives commands in HCI_ACL but apk shows ATT
I have a solar inverter which can be queried through mobile apps, eSolar O&M or eSolar SET. My goal is to read values from the inverter (solar power, grid consumption...) by querying the device ...
- 119
1
vote
0
answers
96
views
reverse engineering an APK file to find HTTP requests in the source code
I've extracted an apk(react native) with dex2jar and jar to java through jd-qui and also with apktool, and I can view the source code but there is no clue where are the HTTP requests in the source ...
- 11
1
vote
0
answers
17
views
Cant view some classes while inspecting APK's code
I'm trying to understand how the application works.
I used dex2jar utility to receive .jar file (d2j-dex2jar --force file.apk). And jd-gui to view it's classes.
I'm able to view the most of them. But ...
2
votes
0
answers
181
views
How to decompile an APK written in Golang?
I recently started trying to learn basic reverse engineering and Golang. Decompiling Android apps written in C++ and Java/Kotlin seems easy as there are tons of documents and tools that enable you to ...
- 21
1
vote
0
answers
49
views
Reverse engineering of Process manager apk
Is there someone helps me to understand how to build the server of this apk https://lab52.io/blog/complete-dissection-of-an-apk-with-a-suspicious-c2-server/ ? I tried to disassemble the apk but it is ...
- 27
0
votes
0
answers
35
views
Malware apk in Android [duplicate]
Is there some website where i'm able to find malware apk filtering by permission (for instance: RECORD_AUDIO)? I'm looking for website similar to pithus
- 27
1
vote
2
answers
340
views
Decompiling and Recompiling APK leads to crash using Apktool
Decompiling and recompiling an apk causes it to crash. My goal is simply to insert a method into smali code that prints a stacktrace, but even decompiling and recompiling with no changes causes the ...
- 121
0
votes
1
answer
104
views
Malware application in Android
Is there some website that give us the possibility to download malware APK in order to study it? I’m interested to study the abuse of android.permission.RECORD_AUDIO in Android 8.
- 27
0
votes
1
answer
113
views
Extract resource images from a games APK
I'm looking to pull the images off of the game "Summoners War" to use for wallpapers and such. I have access to the images themselves, but they seem to be encrypted and cannot be viewed. ...
- 1
0
votes
1
answer
134
views
Reverse engineering ELF: The e_phentsize field in the ELF header is less than the size of an ELF program header
I have extracted the .so binary libTheArmKing.so (located in lib directory in apk file) from a hack of World War Heroes game (an Android game) from Plantimod Forum.
file output:
libTheArmKing.so: ELF ...
- 219
1
vote
1
answer
635
views
Modify, unpack, and rebuild an Android App Bundles (.aab) file
My developer has not provided me the source code backup for my listed app in Google Play (his PC was stolen and all codes are gone with it). I logged on to my Play Store developer's account and found ...
- 13
0
votes
0
answers
167
views
How can i inject xamarin smali code into another apk?
I tried to make a simple foreground service android application using xamarin... then decompile and inject it into another apk...but it always crashes.
here is adb logcat :
05-31 23:57:34.158 7680 ...
- 1
0
votes
1
answer
131
views
How do I gain access to files that an Android app stores in its persistent internal storage directory?
I was playing a game that had hidden achievements and wanted to find the conditions necessary to unlock these achievements. To do this, I've tried to get the source code of the game, to find the ...
- 1
1
vote
0
answers
346
views
Decrypting .PNG files from Chinese mobile game
Amateur here.
I'm working on decrypting a couple of .PNG files extracted from an .apk of a Chinese One-Punch Man mobile game. They're identified as .PNGs by Windows, but can't be opened by any ...
- 11
0
votes
0
answers
136
views
Checksum verification of an apk does not the same as my java program
I'm from the sysadmin side of the IT and have not much experience in programing.
I have an app that lets me screen share Android apps on my car's display.
Sadly there is a whitelist baked into the app,...
0
votes
0
answers
108
views
Is this native code possible for further static analysis?
I was trying to reverse engineer a native lib code in an android app. the .so contains many functions. But the function sUQWWyTBEs() was referred in the Java code. I was curious how this function ...
- 219
4
votes
2
answers
441
views
On reverse engineering an udp protocol to control a drone
My goal is to control my drone with my raspberry pi using python and not the app that is being delivered together with it.
First I connected the app to the drone, flew and used aircrack-ng to get the ...
2
votes
1
answer
241
views
$$Lambda$(number) when decompiled Java bytecode
Why when I decompile a Java bytecode (which further was decompiled from .dex), I get $$Lambda$(number), in Java files, and it's not possible to build project with these java codes as it's insufficient ...
- 21
1
vote
1
answer
2k
views
finding rest api urls after decompiling apk
i have two apk files , when i decompile them using apktool i can take a look at decompile code , so here is what really confuse me , in the first apk if i searched the hole files for strings witch ...
- 13
1
vote
1
answer
4k
views
how to change app name and package name of an apk?
I decompiled an apk and I made a couple of modifications. When I tried to recompile it I got that error :
Compiling APK file...
/c "java -Xmx1024m -jar "C:\Program Files (x86)\APK Easy Tool\...
1
vote
0
answers
349
views
Android app Viber (com.viber.voip) mitm
I want to see what viber is sending out of my android phone, I'm using mitm proxy (custom server) but the app is using certificate pining to detect the proxy and close the connection after the ...
- 11
2
votes
1
answer
1k
views
Debug 3rd-party apk with .so-files missing debug symbols
Apologies, if this has been asked before. I am reverse engineering a chinese app that connects to a BLE device, so I can inspect how it transmits the data. Using this official guide I decompiled my ...
- 21
2
votes
1
answer
1k
views
How to read dnSpy code from assembly_csharp.dll
So I have managed to retrieve the assembly_csharp.dll using the il2cpp tool from an android apk, however my issue is that when I go to read the dll using dnSpy I have all the correct looking function ...
- 21
2
votes
1
answer
145
views
Can obfuscation be applied on certain parts?
I am newbie to this field. I am still learning from your wonderful contributions, help and guidance.
I have had an app that i want to study in-depth. How the the it is constructed? What components ...
- 21
2
votes
1
answer
337
views
apk crashed on launch when re-signed with debug key
I sometimes decompile and recompile apks and make changes (like changing graphics, text etc...) normally I use apktool to decompile and recompile and then use testsign.jar to resign the apk with the ...
- 121
2
votes
0
answers
50
views
How to use smalivm and simplify to find a certain static constant from APK or remove confusion?
smalivm: Provides a virtual machine sandbox for executing Dalvik methods. After executing a method, it returns a graph containing all possible register and class values for every execution path.
I ...
- 21
0
votes
0
answers
46
views
How do I find the function that draws a window on android?
I have an application that recently disabled support for one of the features I used for legal reasons. Looking at the decompressed file size and count of the new version compared to the old version ...
2
votes
1
answer
129
views
Any ways to combine Android APK with Expansion pack file?
I want to have only one APK that contains all files and resources without having to download expansion pack every time.
Is there any way to combine Android APK with Expansion pack file?
My expansion ...
- 619
0
votes
0
answers
232
views
How does Andriod .so files Reverse Engineering with a dissasembler like IDA pro and Cutter work
So few days ago going through youtube Reverse Engineering videos, i came across a particular video where an android application was modified using IDA pro by disassembling it's .so file found in /lib ...
- 1
-2
votes
1
answer
218
views
How to reverse engineer apks? [closed]
is it possible to reverse engineer an apk just to unlock hidden/unreleased features?
- 219
3
votes
1
answer
447
views
Modifying (adding new logic) decompiled apk to log different kind of data causing problems (crash/bluetooth connection)
I have separately decompiled apk to smali/dalvik and to java classes. As apk is not obfuscated java code is pretty good to read and I can pretty easily see corresponding smali code.
So far I was able ...
- 33
3
votes
1
answer
1k
views
how to decompile or unite multipart dex class in an android apk file?
Some Android Apks contain multiple classes.dex files which are numbered like this: classes1.dex, classes2.dex ... and when i try to decompile them it would result into multiple source codes. Is there ...
- 131
0
votes
1
answer
538
views
Android packageInfo signature
Are there anyways I can learn what packageInfo.signatures[0] is so I can use it to apply the same algorithm in Python.
To further explain:
private static SecretKeySpec a(Context context) {
...
-1
votes
1
answer
141
views
App from playstore runs but the same apk crashes on sideload install
On my nougat device, I have downloaded an app from the playstore, which is running great. I then extract the apk from the installed app, and uninstall it and again successfully, with package installer....
-2
votes
1
answer
3k
views
Change androidmanifest.xml file within apk
I am able to unpack an android apk file with apktool, but when I am repacking the apk file using apktool, it just crashes with errors, and ibotpeaches seems not patching those errors for years. Now ...
- 219
2
votes
1
answer
403
views
Invalid file path error while trying to rebuild with apktool and aapt2
I am facing an error while try to repack an apk with apkool. below is the error trace.
W: error: invalid file path 'C:\Users\ccre\res\drawable2\abc_ic_search_api_material.xml'.
W: error: invalid file ...
- 219
0
votes
1
answer
885
views
Android app crashes even while not edited, how can I solve it?
Installed an application from google playstore and then transferred to it my computer to apparently edit it and without any changes I made to it then I tried to install it through ADB, well the ...
- 219
3
votes
1
answer
409
views
How can I retrieve the encryption key in this code?
can anyone explain the following code? is it possible to retrieve the encryption key?
I think the code was heavily obfuscated in addition to obfuscation, I can recognize it is using algorithms like ...
- 219
1
vote
1
answer
1k
views
How to reverse engineering a proguarded .apk? [closed]
Lets say you have android1.apk file coded with proguard enable.
I want to reverse engineer it in such a way that it shows the original methods names instead letters of alphabets, example bellow
...
0
votes
1
answer
120
views
Is there a way to reverse engineer this small tool "website2apk" and design my own? [closed]
I recently came across this tool and was amazed by its size and how it can build release-apk, without even bothering about Android development environment set up on the machine, neither Cordova nor ...
- 3
1
vote
0
answers
78
views
(Help) APK Decomplied unreadable .pngs
I decompiled an Android game APK to look at the source code / resources and the .pngs give me the error "It looks like we don't support this file format" when I try to view them in the Photos App. I'...
- 11
3
votes
1
answer
113
views
DEX file referenced type is not defined in file
I am analyzing a dex file and to ease with reverse engineering, I converted it a jar so it could be decompiled. In the file android/support/v17/leanback/media/MediaControllerGlue.class, the following ...
- 328
1
vote
0
answers
470
views
Calling functions of a shared object (.so) extracted from an APK
Decompiling a regular Android application I noticed that its code uses some native functions. So, unpacking the (.apk) file I found the usual "lib" folder and under that a series of folders for ...
- 11
3
votes
0
answers
808
views
Android APK debugging: modify value of smali register
I am debugging an apk app that I do not have the sources for. I want to debug it on a smali level, not decompiled.
I used to do this with apktool, but looking at their website, smali-debugging is ...
- 423
2
votes
0
answers
825
views
How to export to *.so file after patching in ghidra
I'm using ghidra to patch an *.so file in the Android APK.
While exporting the patched file from ghidra, using the "Export program" option from the "File" menu, it don't have *.so in the supported "...
- 433