Unreal Engine 4 pak-file Unpacker / unreal_tournament_4.bms [UE4 global topic]

[blenux]

Thank you . for all this awesome work. But Im having some trouble dencripting Frotnties game files. Theya re all Pack Files, but I cant seem to decrypt them. I have tried with two different AES keys, and I got the same error:

btw I have also tried in administrator mode.
Thank you for your help.

That's a old key if trying with latest Fortnite paks, this is the current one,

0x9D8C9A4A4FA082F213EED604B6E756237181685EEDA82216437617D7AA5231AF

The 0x is just for Gildor's uModel program, tried to use Quickbms to same issue your having even with latest key , they it because of the Pak file version changed to V5 etc.

[alvileg]

Is there any way to fix it? I really need to look at the code

[aluigi]

mah, here it works perfectly with all the files correctly extracted using the key provided by blenux.
I have updated the script to version 0.4.18 "only" for allowing to use the umodel's key "as-is"

[alvileg]

Well I still have the same error with the new key. If it works for you is there any way u can pass me the files? I can see the assets with the same key in Umodel, but I get that error in QuickBMS

[alvileg]

Well I still have the same error with the new key. If it works for you is there any way u can pass me the files? I can see the assets with the same key in Umodel, but I get that error in QuickBMS

BTW Im suing QuickBMS_4gb. Does that interfeer?

[alvileg]

Also do you have Discord etc to talk faster?

[aluigi]

It works if you copy&paste the key, doesn't work if you select the number of the key because I used the instruction for parsing the "0x" keys only on the manual keys... gildor made a huge mess by adopting this senseless "0x" prefix for binary keys while the backslash escape was already adopted by many time in the script.
If one day a game will use a key really starting with "0x" you will not be able to use it!.
I have updated the script to version 0.4.18a.

Ah, quickbms_4gb_files.exe is mandatory in any case with big files like these.

@blenux
the script has ever supported version 5 without any change, the only problem was the invalid format of the key used in umodel

[alvileg]

It works if you copy&paste the key, doesn't work if you select the number of the key because I used the instruction for parsing the "0x" keys only on the manual keys... gildor made a huge mess by adopting this senseless "0x" prefix for binary keys while the backslash escape was already adopted by many time in the script.
If one day a game will use a key really starting with "0x" you will not be able to use it!.
I have updated the script to version 0.4.18a.

Ah, quickbms_4gb_files.exe is mandatory in any case with big files like these.

@blenux
the script has ever supported version 5 without any change, the only problem was the invalid format of the key used in umodel

It NOW works with the new script! Then you so much for fast response. You are a great dev. Thanks bro

[blenux]

It works if you copy&paste the key, doesn't work if you select the number of the key because I used the instruction for parsing the "0x" keys only on the manual keys... gildor made a huge mess by adopting this senseless "0x" prefix for binary keys while the backslash escape was already adopted by many time in the script.
If one day a game will use a key really starting with "0x" you will not be able to use it!.
I have updated the script to version 0.4.18a.

Ah, quickbms_4gb_files.exe is mandatory in any case with big files like these.

@blenux
the script has ever supported version 5 without any change, the only problem was the invalid format of the key used in umodel

I see thanks for the fix and sorry for my noobiness in game archive coding area, my brain hurts just looking at it .

[alvileg]

Well everything is extracted, but I see a fortnite game ueproject file, is there anyway to open it?. And what exactly there is inside the pak files, only assets? i also wanna have a peek at the code. Thanks if you could help me, im a noob at this thing.

[StreetMode]

good evening, i need help to open pak file for the game james cameron avatar the game [PS3], i try with Umodel but it does not work anyone could help me?



Thank you

[Delutto]

good evening, i need help to open pak file for the game james cameron avatar the game [PS3], i try with Umodel but it does not work anyone could help me?

This is a thread for Unreal Engine 4 games research and this game isn't.

[StreetMode]

okay sorry, as you told me that here it was only for the Unreal Engine game I downloaded the PC version of the game and is also the .PAK file that does not open either with Umodel, Anyone have a solution?

Thank you

[lolwatt]

okay sorry, as you told me that here it was only for the Unreal Engine game I downloaded the PC version of the game and is also the .PAK file that does not open either with Umodel, Anyone have a solution?

Thank you

Son, this game uses Dunia. It is not Unreal Engine.
PAK or not means nothing.

[blenux]

anyone have the aes key for Fractured Space?, here is the .exe - Fractured Space exe

I came across this in a dump I tried,

KnwQkFxmmsYhxjmjn4YV7XmxD8oVeTZX

but doesn't work .

Thanks.

[dirtbike]

Hi
can anyone help me to open this kind of mx vs atv all out files?
thank you

http://www.mediafire.com/file/k9d9jp4gb ... asset/file

[aluigi]

That file is a sort of custom archive, it's a NO_TAIL_INFO=1 and VERSION=3 but the reported ZSIZE/SIZE include the header too and so it can't be extracted (basically ZSIZE is the whole size of the file).
Deleting the first 53 bytes from the file will do the job.

If you need a script for doing that (do a test on one file first and be sure the output folder is not the same of the input file):

Code: Select all

math OFFSET = 53
get SIZE asize
math SIZE - OFFSET
get NAME filename
log NAME OFFSET SIZE

[dirtbike]

thank you very much Aluigi!
a script would be awesome... I have no idea how to... please guide me!

[aluigi]

Do you mean a script like the one I posted in my previous post...

[dirtbike]

sorry can u pm me?