Hacking [HELP] Anyone could research the savedata of MH4G exported by Savedatafiler?

nanohazard

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I have tried to research the savedata of MH4G, but I have been totally confused. I think the data hasn't been decrypted even though the data was exported by savedatafiler. Is there anyone who has tried to study it?
 

Oishikatta

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The easiest way to do simple edits is to pick a value you want to change (money, exp, whatever). Then save your game with that value, change the value, save again, change value, save again, exporting the save each time. S you have 3 decrypted save files each with a different value of what you're trying to edit. Then use a 3-way hex compare (I use xxd and gvim to do this). Then once you've identified the location of what you want to change use a hex editor (I use HxD) to edit it.

Some games use checksums, and in that case you can't simply edit what you want.
 
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_eyCaRambA_

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You are correct. I have the Cybergadget Save Editor and thus I know how the data should look like in plain text. The output of Savedatafiler is definitely not correct.
I remember that for some time when the original Monster Hunter 4 released, Cybergadget also had trouble to offer correct decrypted saves of the game so I assume Capcom added an additional layer of encryption to protect the online multiplayer from cheaters (well, without success obviously).

I attached a Savedatafiler output and a clear text output if somebody wants to take a look. Please note that these are not corresponding files, SDF output does not contain the same data as the cybergadget output. Just for structure viewing purposes.
 

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banxian

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seems capcom added extra encryption on savedata.

you'd better decrypt MH4G rom, and make an elf file from xorpaded exefs.
then load the elf into ida to find it.
 

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