Help! APK Mod Protection

NullCoder

NullCoder

Inactive Approved Modder
Hello! I really want to hack "Motor Depot" in which they introduced a new protection against changing the APK. I searched smali and found signature verification and license verification. The application does not respond when changed or was stopped, that's what I see when I try to modify the APK.

To bypass the signature verification protection, I tried to use the APK signature killer for base.apk, and to verify the license, I used the Lucky Pather patches. But everything turned out to be unsuccessful.

The game only supports ARMv6
Maybe I'm doing something wrong ... If there are people who could help me, please write either in a personal or here, I'll be glad for any help. :face46:

Link to split files: Motor_Depot.zip
 
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Hi, Null, if you are Russian, then we can communicate much easier, I can communicate in English, but it will be more convenient in Russian, in short, to the point, I roughly understand how to get around your problem, it will be a little difficult to do, it’s not convenient for me to communicate here, you can send me a private message on discord and I will try to solve your problem, Discord Re-Code#9102
 
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NullCoder said:
I always use this site, don't think that I'm so stupid, the game is paid, that's why I threw the source code here. Split APK I connected after bypassing all the checks, but it did not help me.
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I never say or think you was stupid , you can download games tough apk combo into armv7 and its not always a split apk that why i post the link , sorry if you take it as offence its was just an help .
 
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DokoRoxor said:
I never say or think you was stupid , you can download games tough apk combo into armv7 and its not always a split apk that why i post the link , sorry if you take it as offence its was just an help .
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No, thank you, you somehow tried to help, I'm still trying to find where the protection is.
 
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I'm trying this same protection with a game did you get a solution? I've already tried with NP and other processes and nothing the game without crashing can resolve to share with me, if you try and it works for a long time to go through this protection
 
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NullCoder said:
No, thank you, you somehow tried to help, I'm still trying to find where the protection is.
Click to expand...
I'm trying this same protection with a game did you get a solution? I've already tried with NP and other processes and nothing the game without crashing can resolve to share with me, if you try and it works for a long time to go through this protection
 
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NullCoder said:
No, thank you, you somehow tried to help, I'm still trying to find where the protection is.
Click to expand...
Just a wild guess but the game could have an apk size checker that detects if the apk's size is different than the one in the web or inside it.

Try reverse engineering it if you think it has one, if the game has a .so try to reverse that too, most protections are on the .so
 
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NotALegitGuy said:
Just a wild guess but the game could have an apk size checker that detects if the apk's size is different than the one in the web or inside it.

Try reverse engineering it if you think it has one, if the game has a .so try to reverse that too, most protections are on the .so
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Crash is called from libpairip.so with a signal for object overflow in java. As I understand it, it checks the size of something and if it does not match, then a crash overflow in lib is called.
 
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NullCoder said:
Crash is called from libpairip.so with a signal for object overflow in java. As I understand it, it checks the size of something and if it does not match, then a crash overflow in lib is called.
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That might as well be an apk size checker as i thought, i suggest trying to see the apk size of the unmodified apk and the one from the checker and see if it matches, if it does match or is at least similar then there's a huge chance it is an apk size checker.
 
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platinmods.png

I found the problem, the 4play.ru apk, it managed to bypass this verification and was analyzing it, its signature is different from the original and even so you can open the game, this verification is stored on a server, if you create your own signature in google firebase and add to the game maybe it will work, and when you open the game it will check the signature that is in google firebase
 
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I also other games contain this verification for example mimicry, it's a free game and also when you sign the same thing happens all the company's games, "EUPHORIA HORROR GAMES", contain this pairip signature, but so far I haven't had any success to ignore
 
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