Help check app code. - Android Q&A, Help & Troubleshooting

Hello, I got an apk from a friend, and he asked me to check it for malicious code, or privacy problems in it. I know my way around a computer but I don't know about that. Could anyone help me?
Appreciated.

Use one of the online APK Decompilers, GIYF ...

jwoegerbauer said:
Use one of the online APK Decompilers, GIYF ...
Click to expand...
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The problem is that I don't understand what I'm seeing.

Related

[Q] How to change apk package name

I just recently tried to upload an app to the play store that I made on a site.
But every time I try to upload the .apk it said that it failed to save changes, then it said that the package name is already on the store.
If anyone knows how to fix this please post below, As it would be a great help.
Picture and apk are attached.
Bump
Bump - Please help! :good:
M4ttz said:
I just recently tried to upload an app to the play store that I made on a site.
But every time I try to upload the .apk it said that it failed to save changes, then it said that the package name is already on the store.
If anyone knows how to fix this please post below, As it would be a great help.
Picture and apk are attached.
Click to expand...
Click to collapse
Change the package name in code and associated files with it, and then compile and execute the apk, sign it and then try to publish.
via Phone
I know that but there is so many files associated with it. It would take forever to do so!
Thanks for making the effort to help though.:good:
M4ttz said:
I know that but there is so many files associated with it. It would take forever to do so!
Thanks for making the effort to help though.:good:
Click to expand...
Click to collapse
you can right click the project in eclipse and there is android tools, you can change the package name there..
and oh you need to sign the package first before uploading it to playstore

[Q] Edit .apk wirh winRAR possible?

Hey guys,
I was searching for a tool to edit an apk file and i found Apk Tool on xda but i think it's not
that much easy to work with this program. (for a n00b, like me.. )
I managed to open and edit te file with winRAR,
but is this program also capable of proper compiling the app again, ready to use?
I tried it and it worked well i think, but is this possible with any app or other kinds of changes?
If this is stupid or something, please tell me. I am not very experienced in these kinds of things.. (neither in english, sorry.. )
Somebody any ideas?
Thanks in advance!
bart1996 said:
Hey guys,
I was searching for a tool to edit an apk file and i found Apk Tool on xda but i think it's not
that much easy to work with this program. (for a n00b, like me.. )
I managed to open and edit te file with winRAR,
but is this program also capable of proper compiling the app again, ready to use?
I tried it and it worked well i think, but is this possible with any app or other kinds of changes?
If this is stupid or something, please tell me. I am not very experienced in these kinds of things.. (neither in english, sorry.. )
Somebody any ideas?
Thanks in advance!
Click to expand...
Click to collapse
It all depends on what you edit,obviously you didnt make a fatal change,so it must have been small,no its not possible to edit anything else as far as the manifest and xml files.You'll get a parsing error.
Diablo67 said:
It all depends on what you edit,obviously you didnt make a fatal change,so it must have been small,no its not possible to edit anything else as far as the manifest and xml files.You'll get a parsing error.
Click to expand...
Click to collapse
Okay, that's true i only changed those kinds of files and it wasn't a problem yet.
I changed somethings in an demo version of an app and now it recognizes it as the full version so winRAR can be pretty usefull for apk edit if you keep things simple like this..
bart1996 said:
Okay, that's true i only changed those kinds of files and it wasn't a problem yet.
I changed somethings in an demo version of an app and now it recognizes it as the full version so winRAR can be pretty usefull for apk edit if you keep things simple like this..
Click to expand...
Click to collapse
It only really works for editing images.
Admitting this is a nice way to get banned
Wayne Tech Nexus

Application is not from market

I Have a htc amaze and for some apps when i want to open them, an error says "Application is not from market" how can i fix my problem? please help!!
Re-Install
aliv.2022 said:
I Have a htc amaze and for some apps when i want to open them, an error says "Application is not from market" how can i fix my problem? please help!!
Click to expand...
Click to collapse
Please re install form Play Store.
I think you install form cracked apk.
Icaros7 said:
Please re install form Play Store.
I think you install form cracked apk.
Click to expand...
Click to collapse
Unfortunately in Iran we haven't access Google play store because of prohibitions!!!!! is'nt any other way to don't see this error? my friends have these apps on Samsung phones and they don't have any problem!!!
Here it is
Follow my instructions
Go to Settings>Security>Unknown sources option tick it
then you can install any apps
HIT THANKS if i help you..
076ajay said:
Follow my instructions
Go to Settings>Security>Unknown sources option tick it
then you can install any apps
HIT THANKS if i help you..
Click to expand...
Click to collapse
I've done it before,there is no problem in installing the app, app is installed but when i want open it problems arise...
aliv.2022 said:
Unfortunately in Iran we haven't access Google play store because of prohibitions!!!!! is'nt any other way to don't see this error? my friends have these apps on Samsung phones and they don't have any problem!!!
Click to expand...
Click to collapse
Do you have same apk with your friends??
Umm...I think youd better use "Luc*y Patcher" or "Fr** dom" ...
:-?
Icaros7 said:
Do you have same apk with your friends??
Umm...I think youd better use "Luc*y Patcher" or "Fr** dom" ...
Click to expand...
Click to collapse
Luc*y Patcher... i think it works! good idea but if i don't want to root my phone? isn't any other way?
aliv.2022 said:
Luc*y Patcher... i think it works! good idea but if i don't want to root my phone? isn't any other way?
Click to expand...
Click to collapse
Use SuperOneClick to root your phone easily then use Lucky.... or just... look for a prepatched version on TPB, not that im endorsing piracy in any way. Piracy is wrong

Re Create APK File

Hey Everyone ! Guys Firstly If I Posted In Wrong Section Im Sory For That But I Need To Some Help. I Got Source Codes Of An Android APK File I Want To Edit That As I Want. There Is "Class Files" I Have Edited In Text File And Converted Back To Class File But IDK If It Works So How Can I Edit That Codes In A Class File ? And Second After DoThat How Can I Make It APK Again I Mean How to Re Create APK File With That My Own Codes. Someone Can Help Me ? Its So Much Important , Thanks Everyone
I think, if have all necessary files, you need to compile a project from android studio.
There are several topics that will help you.
Rierei said:
I think, if have all necessary files, you need to compile a project from android studio.
There are several topics that will help you.
Click to expand...
Click to collapse
its an anroid game so animations , graphics etx hard to do so i just want to change dex file of apk , is that possible and how , i just wondwer it
umutt1905 said:
Hey Everyone ! Guys Firstly If I Posted In Wrong Section Im Sory For That But I Need To Some Help. I Got Source Codes Of An Android APK File I Want To Edit That As I Want. There Is "Class Files" I Have Edited In Text File And Converted Back To Class File But IDK If It Works So How Can I Edit That Codes In A Class File ? And Second After DoThat How Can I Make It APK Again I Mean How to Re Create APK File With That My Own Codes. Someone Can Help Me ? Its So Much Important , Thanks Everyone
Click to expand...
Click to collapse
From the way you worded it it sounds more like you have a decompiled apk, not the source code for the apk. Depending on what you want to edit you may need the actual source code to make the changes. What are you trying to do?
zelendel said:
From the way you worded it it sounds more like you have a decompiled apk, not the source code for the apk. Depending on what you want to edit you may need the actual source code to make the changes. What are you trying to do?
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Click to collapse
I m trying to get admin permissions by editing codes. i got some codes with dex2jar from classses.dex file . and game got commands ... some commands like give money , health , energy etc need admin or modarator permissions. for example "super("Armor", SocialEnums.UserRole.Admin);" in codes its admin but i can change it to Player so then i can use that comman.
if i cant get admin - modarator permissins then i can edit prices of items to free but as i said i need to learn how to re-create apk
umutt1905 said:
I m trying to get admin permissions by editing codes. i got some codes with dex2jar from classses.dex file . and game got commands ... some commands like give money , health , energy etc need admin or modarator permissions. for example "super("Armor", SocialEnums.UserRole.Admin);" in codes its admin but i can change it to Player so then i can use that comman.
if i cant get admin - modarator permissins then i can edit prices of items to free but as i said i need to learn how to re-create apk
Click to expand...
Click to collapse
What you are trying to do is considered cracking an app which makes it warez. This is banned on this site. You will find no help doing what you want. As for decompiling and recompiling an apk there are tut all over the site. Search and you fill find what you need. But take this as your warning. Asking for help cracking the app will get you banned. Take this as your only warning.
zelendel said:
What you are trying to do is considered cracking an app which makes it warez. This is banned on this site. You will find no help doing what you want. As for decompiling and recompiling an apk there are tut all over the site. Search and you fill find what you need. But take this as your warning. Asking for help cracking the app will get you banned. Take this as your only warning.
Click to expand...
Click to collapse
ok , thanks for warning but im working on hack so asked here. working on money hack and btw i know developers of that game so i have no bad goal to do on servers and already cant if i could get admin permissions. then can you guidance me to recomplng apk , i coudnt find on forums its so complex to find tnx

Zwift APK - re-sign or mod? - Compatibility Android TV

Hi all,
I was wondering if anybody could assist with helping make an APK work on Android TV.
Zwift is the app - it's a VR Cycling and Running app.
I have the latest version of the APK to sideload -- Unfortunately it's not signed to work with Android TV yet, so it comes up with the error "app not installed"
Does anybody know a workaround?
I'm not sure which parts of the APK to modify or how, other than re-signing. I've search online high and low.
Help is greatly appreciated. I can attach the APK if required.
Thanks
THE_KINGDOM said:
Hi all,
I was wondering if anybody could assist with helping make an APK work on Android TV.
Zwift is the app in question - it's a VR Cycling and Running app.
I have the latest version of the APK to sideload -- Unfortunately it's not signed to work with Android TV yet, so it comes up with the error "app not installed"
Does anybody know a workaround?
I'm not sure which parts of the APK to modify or how, other than re-signing. I've search online high and low.
Help is greatly appreciated. I can attach the APK if required.
Thanks
Click to expand...
Click to collapse
If you was able to disable signature verification the app will install
([emoji3590]09-09-18[emoji3590])
PoochyX said:
If you was able to disable signature verification the app will install
([emoji3590]09-09-18[emoji3590])
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Click to collapse
Any quick and easy way to do this?
Thanks
THE_KINGDOM said:
Any quick and easy way to do this?
Thanks
Click to expand...
Click to collapse
Well you need root to do that.....
([emoji3590]09-09-18[emoji3590])
PoochyX said:
Well you need root to do that.....
([emoji3590]09-09-18[emoji3590])
Click to expand...
Click to collapse
I thought it's possible to modify the apk files ? I've attached the APK in my last response
THE_KINGDOM said:
I thought it's possible to modify the apk files ? I've attached the APK in my last response
Click to expand...
Click to collapse
No you can't modify the apk for that....the frame jar is what is responsible for detaching signatures....
([emoji3590]09-09-18[emoji3590])
PoochyX said:
No you can't modify the apk for that....the frame jar is what is responsible for detaching signatures....
([emoji3590]09-09-18[emoji3590])
Click to expand...
Click to collapse
Okay.
Am I correct in a assuming that the APK isn't signed for Android TV? - with the "app not installed" error msg when trying to install the APK.
What if it's something else other than whether or not the APK is signed that may be causing this? Perhaps it could be something resolvable without root?
I need to get this apk installed on the Sony Bravia so I'll do whatever is requred, if rooting turns out to be the only way then I'll do that.

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