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AlterEGO, posted Tue Nov 10, 2015 10:52 am (9528)

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Good day. Please help me to unpack *.pak files, namely BaseWorld.pak and GameData.pak.
Game - highly modified C4 engine. Scripts: bussimulator2012.bms, bussim2012.bms and c4.the bms is not able to unpack this archives.

I attach the beginning and the end of the files:

aluigi, posted Tue Nov 10, 2015 12:27 pm (9539)

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http://aluigi.org/bms/bussimulator2012.bms

AlterEGO, posted Tue Nov 10, 2015 1:02 pm (9546)

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aluigi wrote:

http://aluigi.org/bms/bussimulator2012.bms

Thanks Luigi.
I tried to use 3 scripts:
Bus Simulator 2012 . 0x62 . deflate
Bus Simulator 2012 pak decrypter . xor
Bus Simulator 2012 PAK->ZIP decrypter . xor
but all 3 scripts do not allow to correctly unpack the file *.pak

Script PAK->ZIP decrypter . xor generates a zip file that cannot be opened due to error:"Archive is corrupt" and "Unexpected end of archive". I use Winrar and 7z archiver.

aluigi, posted Tue Nov 10, 2015 1:04 pm (9548)

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Try my zip.bms script and let me know if it can extract the generated zip file:
http://aluigi.org/bms/zip.bms

AlterEGO, posted Tue Nov 10, 2015 1:17 pm (9551)

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aluigi wrote:

Try my zip.bms script

The result of your script:

aluigi, posted Tue Nov 10, 2015 2:20 pm (9565)

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The bussimulator2012.bms script is perfect as visible from all the readable PK fields but, apparently, the deflate stream has an additional layer of obfuscation. Just guessing because a scanning by xoring your sample with the bytes from 0x to 0xff didn't give decompressed data.

AlterEGO, posted Tue Nov 10, 2015 4:42 pm (9577)

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Luigi, thank you for your answer.
Is there a little chance to decompress these game archives?

aluigi, posted Tue Nov 10, 2015 9:25 pm (9589)

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The problem is caused by a different obfuscation key which differs just in few bytes.
Can you upload Game.vPlugin?

aluigi, posted Tue Nov 10, 2015 9:54 pm (9591)

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I no longer need it.
Script 0.2:
http://aluigi.org/bms/bussim2012.bms

It contains 3 different keys, all those that have been encountered till now.

All the other scripts have been removed because they were just duplicates.

AlterEGO, posted Wed Nov 11, 2015 8:33 am (9597)

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Thank you Luigi! The script works fine

I don't have time to write in the topic, but tonight my friend gave me the script, which is also successfully unpacked game archives:

2 scripts work equally well

Thanks again for the help

City Bus Simulator Munich.rar

rafaelkaiz, posted Mon Apr 18, 2016 2:30 pm (12675)

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Hello! Thanks a lot!

The script working fine, so i have a question:
Is posible 'Packed' these files?

for modding the game, for example, translate the game.

rafaelkaiz, posted Mon Apr 18, 2016 3:27 pm (12678)

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ok, not need! work good withouth .pak files