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mafumafu, posted Tue Jan 09, 2018 11:23 pm (31443)

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hi there. I' trying to unpack the .npk files from a new Chinese game 'MOBA-Onmyoji', which is made by Netease, like 'Demon Seals' or other games.

I've tried the following script that take effect on 'Demon Seals'

http://aluigi.org/papers/bms/others/nxpk.bms

but it failed and logs here:

Code:

- signature of 4 bytes at offset 0x00000000 doesn't match the one
  expected by the script:

  this one: "EXPK"
  45 58 50 4b                                       EXPK

  expected: "NXPK"
  4e 58 50 4b                                       NXPK

I've also tried to change the file' header to 'NXPK', but it still doesnt work.

could anyone give me the right .bms file, or confirm that it cannot be unpacked by QuickBMS? Thanks a lot!


example .npk file: https://drive.google.com/open?id=1Xg7B3 ... 8OSUfEFURs

game' official site: http://moba.163.com/index.html

game download: https://g78.gdl.netease.com/jzpaj101.apk

milk, posted Sat Jan 13, 2018 7:27 pm (31515)

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????unity

mafumafu, posted Tue Jan 16, 2018 2:12 pm (31611)

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milk wrote:

????unity

?????????????????,??????????_(:3_/_)_

[del]????????????_(:3_/_)_[/del]

mafumafu, posted Tue Jan 23, 2018 10:13 am (31831)

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could anyone give me some info or ideas or suggestions...?

net2cn, posted Tue Jan 23, 2018 3:16 pm (31843)

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Well this game is not made by Unity, it is made by an self-developed engine called "NeoX" I guess. Meanwhile, since the signature has changed from "NXPK" to "EXPK", it is possible that netease has changed their packing method (slightly maybe?), making the unpack script not working any more. Also, changing the first four bytes won't make the script working again.

-Edit: A possible approach:
You could try to reverse "libclient.so" in the game's apk and see if you can find a Python bytecode called "redirect.pyc" which is used to "redirect"(?) the game resources. Here's one from Onmyoji on GitHub: https://github.com/YJBeetle/unnpk/commit/6bcfbdc2d97a3e0a774b8f00caa8638e8e0d7282 (Not tested).

lixingdeyongyuan, posted Tue Jun 26, 2018 5:28 am (36213)

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hi,mafumafu!Has this problem been solved?

angelxy, posted Tue Aug 07, 2018 8:15 pm (37290)

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lixingdeyongyuan wrote:

hi,mafumafu!Has this problem been solved?

.hi my fr can you show me how did you do that