Questions tagged [apk]
Android Application Package is the package file format used by the Android operating system for distribution and installation of mobile applications.
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APK Reversing. Some code is hidden?
Sorry for my English. I accepted a challenge (part of the partial exams of the year) from my university professor of IT Security and Privacy. He gave me an APK and I need to find out how the login is ...
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Need help decrypt xxtea encrypted Lua file from cocos2D game
I was trying to recreate this game because it was down but I really love it.
I tried to decompile the apk and I got the java code and the assets then I looked around the code and found out the main ...
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Cannot debug native library of Android apk
・I am debugging an apk file.
・The address I want to stop at BreakPoint is in the native library(.so) (no function name).
・The native library has a "JNI_OnLoad" function, so I set BreakPoint.
...
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How to locate the code used for encryption of qrcode message in apk file
When I scan a QR code in this app it gives an encrypted message. I want to figure out what method this app used to encrypt their QR codes. I used Dextojar to look at the source code but couldn't ...
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possible to modify apk to bypass api request/response?
I have an apk for an app that contacts a web API that no longer exists. I do not have the source code. The app will not work normally without getting a response from the API.
Something like this:
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APK / Decrypting [closed]
I'm new to Reverse Engineering, so I apologize if something is wrong.
There is a free program that requires a license key, which can no longer be bought and obtained. I'm trying to write a KeyGen or ...
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How to edite a compiled Reactive Native file "main.bundle"
I bought I vacuum robot from Dreame and needed to replace the Lidar sensor myself as in my country (Brazil) don't have technical assistance, but now it is not working properly because it says that don'...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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
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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 ...
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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.
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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. ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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,...
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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 ...
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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 ...
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$$Lambda$(number) when decompiled Java bytecode
Why when I decompile a Java bytecode (which further was decompiled from .dex), I get $$Lambda$(number), in Java files, and it's not possible to build project with these java codes as it's insufficient ...
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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 ...
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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\...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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How to reverse engineer apks? [closed]
is it possible to reverse engineer an apk just to unlock hidden/unreleased features?
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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 ...
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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 ...
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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) {
...
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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 extracted the apk from the installed app, and uninstalled it and again successfully, with the package ...
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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 ...
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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 ...
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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 ...
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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 ...
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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
...
