Android Tutorial How To Bypass signature check in Assembly.Csharp.dll

[Infamous-Ash 8.9k]

Well that's pretty easy, just search IsGenuine, GetSignature or InstalledFromRightLocation and return it to TRUE. They are all boolean.

Use dnSpy, it's much easier to edit code. Right click inside method code, select "Edit Method (C#)..." and replace it with "return true;"



Tip: Dump source code from dll and search keywords in files using Notepad++ and analize them. It's much easier for me because i can search string, url string, excat code etc.

Keywords to search: Integrity, Check, Genuine, Signature, Installed, Location etc.

How i found IsGenuine?

First, i was analizing ShowInvalidBuildError() but i was unable to locate the check, so i just just dump the entire source code and search "signature" in files using Notepad++ because it's much easier for me to find the useful code. My former friend told me that trick.

How i found InstalledFromRightLocation?

I recorded a logcat using Matlog app to find an error, and i already found interesting function ReceiveInstallFromWrongLocationError()



so i took a look in dnSpy. I analized it , look InitOnStart() and there is a code
 

bool flag2 = AndroidUnityUtilWrapper.InstalledFromRightLocation();

InstalledFromRightLocation() is also an interesting method. It was a boolean so I returned it true and it worked!

Credits:
iAndroHacker

[KFCzZz 10.4k Nox 4.3]

Already knew this. It's on his website.

[Joka 3.9k N/A N/A]

Nice

[TheArmKing 60.4k Xiaomi A1 9.0.0 Pie]

Thanks man , I remember encountering such error and making a support topic about , will see  

[Nerdstomper 0 Galaxy S7 7.0]

I was going to say, this looked exactly like Andros words on his site lol until I saw the credits at the end