When I try to play the game itself (it's one of those games that downloads patches ingame, like FE3H), it wants to download about 50mb extra, but I'm not sure what this has in it. I did manage to grab some of the UI but that's it. I can't seem to find much in general, like the character portraits. I unzipped the files and got them to load, but I can't seem to actually find the character models anywhere. I have the APK and the same tool they used, AssetStudio. So I'm attempting to get the missing files out of the game. There is already a dump online of the assets, but it's outdated and the person who uploaded them doesn't reply to comments or offer assistance in extracting files.

Finding a way to load the libmono.so into IDA and debug it with another tool (I found a tool here which is called native-shim, this could probably help us).I'm trying to extract models from the game #COMPASS (or NND Compass).

Loading libmono.so or libunity.so to jump step by step to the point where the Assembly-CSharp.dll gets decrypted and extract the DLL (not sure how to do this yet ^^).Finding the correct entry for libmono.so over debugging the x file.Now we have 3 possible ways how to get to the point we want to: Whenever we want to debug them the IDA system tells us that these files can not run by themselves. Here is an example what the encrypted DLL looks like right now:Īnd what it should look like (from a game, made by me with unity):Īfter making some adjustments of how the files are loaded from the APK, we were able to load libmono.so and also libunity.so into IDA, but we can not debug these files. This runs fine so far and we can also set breakpoints and all that stuff.īut when debugging the APK in IDA Pro we are not able to find the points where the client is decrypting the Assembly-CSharp.dll file as this seems to happen in libmono.so.

We managed to modify the APK so that it is debuggable and also managed to get the stuff running so that we can debug the APK in IDA Pro. Normally these files are readable when using something like JustDecompile, but this one is encrypted. My friend and I am trying to decrypt the Assembly-CSharp.dll file from an Android game which was written in Unit圓D.

Extract unity assets from apk