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Author Topic: Lost Ark  (Read 22662 times)
Gildor
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Re: Lost Ark CBT
« Reply #45 on: November 28, 2016, 23:56 »

I should balance my time between work, family and umodel. And when selecting time for umodel, carefully choose what I'll do next there. I can't support everything with a word "Unreal" in it's title - just don't have enough time for this. When I'm working on this project, I'll either sacrifice my family's time, or will work less - i.e. sacrifice my salary (and this affects family again). It is not a fun or hobby project for me anymore, sometimes it appears rather like some burden. However I can't just drop it, at least not now.
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yafei007
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Re: Lost Ark CBT
« Reply #46 on: November 30, 2016, 03:47 »

Any time, the family is the most important.
Thank you for everything you do, this is a very good tool.
Bad English, please forgive me。
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godskin
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Re: Lost Ark CBT
« Reply #47 on: September 13, 2017, 20:39 »


Heya, CBT2 is right around the corner, new encryption...
Can you update the decryptor tool?

Uploaded some sample .upk from CBT2 client:
https://mega.nz/#!lPBkAYyT!QjvjnhoMzJdjuDYyWOzUQqid5ZsNSt48v9OhgOrceUo
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Gildor
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Re: Lost Ark CBT
« Reply #48 on: September 13, 2017, 20:55 »

Heya, CBT2 is right around the corner, new encryption...
Can you update the decryptor tool?
I think the author of this decryption tool is not on this forum. You should post your request somewhere else. However, this is exactly why I'd prefer to not work with Asian / betas etc.
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1212aaa
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Re: Lost Ark CBT
« Reply #49 on: September 14, 2017, 07:25 »


CBT2 Full Client  Wink
https://drive.google.com/drive/folders/0B7yj3HHOQvx4YmdCZEo2MjdmUTg?usp=sharing
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godskin
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Re: Lost Ark CBT
« Reply #50 on: September 17, 2017, 13:26 »

Here Error Code Gildor pls fix thx very much
- Skeletion Can't extract
- Texture / static mesh Work


*** Aredy Fix(decypt) .upk ****
Code:
FSkelIndexBuffer3<< <- FStaticLODModel3<< <- TArray::Serialize:0/4 <- USkeletalMesh3::Serialize <- LoadObject:SkeletalMesh3'MN_0000_01.mn_0000_01_sk', pos=7B40, ver=868/12, game=ue3 <- UObject::EndLoad <- CUmodelApp::ShowPackageUI <- Main:umodel_version=617

sample file (decypt aredy) 18 MB : https://drive.google.com/open?id=0B0b7sdRNSZ3gTXlnTWlKY2xZeUk
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Gildor
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Re: Lost Ark CBT
« Reply #51 on: September 17, 2017, 13:37 »

Here Error Code Gildor pls fix thx very much
Just read this page, not just your own posts. You'll see the answer.
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h4x0r
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Re: Lost Ark CBT
« Reply #52 on: December 22, 2018, 04:22 »

Some information about packages.

Engine version
Ver: 868/16 Engine: 12097 Game: 80004C

In 90% of cases after the magics id 0xC1832A9E data blocks are encrypted by AES. Only 4096 bytes in blocks are encrypted. Key for decryption is: V1ZEG1PL34V77SQW39A9I4VUW34T6L15

Compression flag (offset 0x6D) always equals 0x44 (this is LZ4) > The game defines it so
Code:
CompressionFlag = (CompressionFlag & 0xF); // = 4

I tried to add support in UModel and other utilities such as extract / decompress. Added next lines in code:

Code:
appDecryptAES(CompressedBuffer, 4096, "V1ZEG1PL34V77SQW39A9I4VUW34T6L15", 32);
Flags = (Flags & 0xF);
if(Flags == 4)
{
int newLen = LZ4_decompress_safe((const char*)CompressedBuffer, (char*)UncompressedBuffer, CompressedSize, UncompressedSize);
if (newLen <= 0)
appError("LZ4_decompress_safe returned %d\n", newLen);
if (newLen != UncompressedSize) appError("lz4 len mismatch: %d != %d", newLen, UncompressedSize);
return newLen;
}

Here is a log when decompressing a small file after compiling:

Code:
Detected game root Z:/Games/Smilegate/Games/LOSTARK/EFGame/ReleasePC (no recurse)
Found 12 game files (0 skipped) at path "Z:/Games/Smilegate/Games/LOSTARK/EFGame/ReleasePC"
Loading package: 2VD9SGDRPE2H7TOC9BLMAP.u Ver: 868/16 Engine: 12097 Names: 543 Exports: 769 Imports: 58 Game: 80004C
2VD9SGDRPE2H7TOC9BLMAP.u: uncompressed size 123962
******** 2VD9SGDRPE2H7TOC9BLMAP.u ********
*** WARNING: wrong size of 2VD9SGDRPE2H7TOC9BLMAP.u: differs in 4 bytes

In fact, it was unpacked without problems, but it refuses to work correctly with other files like upk. Someone else's code for me is like a dark forest. So it would be great if Gildor added support from himself. I did not manage to do this to the end. The main packages loader in EFEngine.dll (library is not encrypted), if this interests the author of course Smiley

Here samples and executable (just in case made a dump and the main executable): Mirror 1 or Mirror 2
« Last Edit: December 22, 2018, 16:45 by h4x0r » Logged
Gildor
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Re: Lost Ark CBT
« Reply #53 on: December 22, 2018, 09:21 »

Thanks for description.

... it would be great if Gildor added support from himself.
I'm afraid this won't happen. I'm too busy with other things - family, work, and when I'll have time for umodel I'll spend time on something else, not about the "Game A" or "Game B", but rather on something general.
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chrrox
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Re: Lost Ark CBT
« Reply #54 on: January 18, 2019, 02:17 »

H4x0r do you know what changed in skeletal meshes I made a bms script to convert these upk files to work with umodel
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Drawing
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Re: Lost Ark CBT
« Reply #55 on: April 28, 2019, 22:56 »

H4x0r do you know what changed in skeletal meshes I made a bms script to convert these upk files to work with umodel

any news on it?
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Kane
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Re: Lost Ark CBT
« Reply #56 on: October 29, 2019, 01:19 »

Guys, what to use now, in order to rip a static mesh?
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epvpalucard
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Re: Lost Ark CBT
« Reply #57 on: March 01, 2020, 07:49 »

Is it possible to extract anything from Lost ark at the moment?
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temsame
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Lost ARK JP
« Reply #58 on: September 23, 2020, 13:31 »

https://lostark.pmang.jp/

just opened today and you will need japan VPN to enter pmang site

umodel cannot open assets normally so that i uploaded shipping.exe and some upk sample please take a look

https://mega.nz/file/2NBhEYbI#8VfeffJnc1s5Qht-NjWJ5tNTB_UPTQKG7woqwotvtgk

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Drawing
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Re: Lost Ark
« Reply #59 on: September 28, 2020, 20:42 »

I really wish it could be supported, anyway it's unlikely to happen since what gildor said
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