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Cracko298 / UE4-AES-Key-Extracting-Guide

A simple guide on how to extract AES-256 keys and use them to decrypt .pak file(s) in most steam-games.
MIT License
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Which aes key #6

Open devvyyxyz opened 1 month ago

devvyyxyz commented 1 month ago

When using the program to get an AES key how do I know which one to use?

Cracko298 commented 1 month ago

In UEViewer you can input multiple, same with Fmodel.

Cracko298 commented 1 month ago

Traditionally, Basic keys such as:

0x4F004F004F004F004F004F004F004F004F004F004F004F004F004F004F004F00

and

0x6A0000000000000000000000000000006A000000000000000000000000000000

Aren't actual keys, instead just used by the Engine Version itself, and not the game or False-Positives.

Normal Encryption/Decryption Keys are more complex and aren't really able to be distinguished apart. As per my suggestion in the comment above, also keep in Mind, that repeating characters evenly spaced out are extremely uncommon for AES Keys and other Encryption Methods.

If this still doesn't answer your Question, please refer to similarly solved issues: #2 Link: https://github.com/Cracko298/UE4-AES-Key-Extracting-Guide/issues/2#issuecomment-1574969416

Two Known Fake Keys that keep showing up are as follows and should be ignored.

0x0000803F0000803F0000803F0000803F000048430000F0410AD7A33C0000803F
0x9A99993E0000803F0000003F0000003F04000000060000000000003F00030303