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Lego Legacy deobfuscate png files

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AsparagusCute1467
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Lego Legacy deobfuscate png files

Post by AsparagusCute1467 » Tue Mar 09, 2021 9:46 pm

Tried to get some png files from "Lego Legacy: Heroes Unboxed", but as usual with Gameloft they are obfuscated. The content of the files start with "GCBF", so I guess they are not compressed additionally. I tried the "gcbf_versus.bms" script from http://aluigi.altervista.org/quickbms.htm but it didn't work.

Anybody any idea what I'm missing? Or maybe even with a working solution?

andree
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Re: Lego Legacy deobfuscate png files

Post by andree » Wed Mar 10, 2021 6:10 am

Post a sample file.

AsparagusCute1467
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Re: Lego Legacy deobfuscate png files

Post by AsparagusCute1467 » Wed Mar 10, 2021 7:32 am

Sure thing!

Within the zip is the original, obfuscated file from the APK.
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AsparagusCute1467
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Re: Lego Legacy deobfuscate png files

Post by AsparagusCute1467 » Wed Mar 10, 2021 7:33 am

(Sorry for splitting this in two replies, could not add two files at once)

Deobfuscated it should look like this:
yeti.png
(Got that image from another, uncomplete & outdated, source)
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AsparagusCute1467
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Re: Lego Legacy deobfuscate png files

Post by AsparagusCute1467 » Thu Mar 11, 2021 4:10 am

Forget that I ever asked!

QuickBMS with the mentioned script is working perfect! I just missed the part, that the resulting file is a ktx file and not a straight png. So with an additional step I've got the pictures.

Remington
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Re: Lego Legacy deobfuscate png files

Post by Remington » Sat Mar 27, 2021 7:12 am

AsparagusCute1467 wrote:
Wed Mar 10, 2021 7:32 am
Sure thing!

Within the zip is the original, obfuscated file from the APK.

Thanks for the link, keep sharing this type of info, i will try to figure it out for more


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[bruce]

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