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

[Zikmont]

Mb u have anything that could help me with finding aes key?

[mike23k]

. Thanks, I hope I downloaded correctly
https://drive.google.com/drive/folders/ ... 5fsOqczsJv

[Toxaxa]

Hello guys,
сan someone help with finding aes key?
thank you =)
http://www.mediafire.com/file/g9n4g8i10x1x61n/Stuff.pak

[aluigi]

@mike23k
make your file available to anyone

@toxaxa
for the keys it's necessary the big exe

[Toxaxa]

.
Here exe
http://www.mediafire.com/file/gzw5we7a8 ... g.exe/file

[mike23k]

.
It's funny, but @Toxaxa shared the same exe as me. So we need the same

[aluigi]

The "good" news is that only the TOC (info of archived files) is encrypted so you can still extract all the files without name by editing the following variables in the script:
math NO_TAIL_INFO = 1
math VERSION = 4

[Toxaxa]

.
Great! Thanks a lot

[Zikmont]

.
Is this method can be used for my problem?

[Zikmont]

I tried this method and I got lots of .dat files. What I have to do?

[Zikmont]

Is there any methods like this one that could help me with my problem? MB other code changes?

[nnvt]

The "good" news is that only the TOC (info of archived files) is encrypted so you can still extract all the files without name by editing the following variables in the script:
math NO_TAIL_INFO = 1
math VERSION = 4

With the Friday The 13th: The Game engine update, it seems like they have encrypted the pak in some way as it cannot be unpacked with quickbms or umodel. When trying to extract the game, quickbms asks for an encryption key. I don't have one so I press enter, then it just hangs.

I also tried the fixes mentioned in the quote, it extracts about 17 0kb dat files before showing this: "Error: the compressed zlib/deflate input is wrong or incomplete (-3)" and "Error: the uncompressed data (-1) is bigger than the allocated buffer (65536)"

I'm wondering if you would be able to find the encryption key (presumably AES) from the games exe. I have looked for ages in IDA and I cannot seem to find it as it's just not my level of expertise.

With the latest patch, they accidentally uploaded a dev build. They pulled it but was already too late and I managed to save the dev build. I hereby provide you with the dev build exe, completely unlocked, no obfuscation whatsoever AND it's PDB file. I'm assuming the key would be the same for the dev and shipping builds and I thought it would be easier for you to find the key with the PDB.

Link to files: https://drive.google.com/drive/folders/1WrRcUpX5Rpv7VjJMWSLeKV3YvNcxleck

[nnvt]

F13 AES key is probably not in the game files, as i found this:

Code: Select all

https://steam.f13-services.illfonic.com:9111/v0/aes256/create
https://steam.f13-services.illfonic.com:9111/v0/aes256/retrieve

Not possible, the game starts without an internet connection. That's probably for the user profile that's now also encrypted.

Also, if you want to look into this more, heres a leaked dev build (latest patch) with a pdb and no exe protection: https://drive.google.com/drive/folders/1dmSYw9lj8a0cEKGmrkWyDaIntcgl3Zb0

[Panzerdroid]

Please help to find the key to Danger Zone 2 game

.pak file cutted + game exe/dlls.
https://www112.zippyshare.com/v/ToWKJZ1O/file.html

[fable176]

I think software hang out 99%.

[aluigi]

I think software hang out 99%.

eh? that means everything was perfectly extracted.

[fable176]

I think software hang out 99%.

eh? that means everything was perfectly extracted.

but randomly

Thank you alugi.

[mike23k]

The "good" news is that only the TOC (info of archived files) is encrypted so you can still extract all the files without name by editing the following variables in the script:
math NO_TAIL_INFO = 1
math VERSION = 4

Thanks aluigi. But unfortunately there are only .uasset files with textures and models. Is it possible to get including those text files with the scripted part?

[Giza]

Gal*Gun 2

Code: Select all

HhijRnAZ7oqWuYFbRCxmOZSbT08YMhCb16ZYNpddPddKGFms9qKaMpvo2oVe9dQ3

But files no decrypt((
Is there a way to decrypt them?

ok. This worked https://steamcommunity.com/app/851890/d ... 6926865689

[Mucho_Dragon]

Just a quick question:

I've run this and I gives me a *.bak file.

What is this meant to be for; I can't seem to do anything with it?