Cracked Denuvo DRM of Hogwarts Legacy after 6 months

After six months of work, developer Maurice Heumann cracked Hogwarts Legacy's Denuvo DRM protection system to learn more about the technology. The developer does not mention too many details of his work so as not to help others in the .

Heumann reveals in a post on his blog that Denuvo uses several different methods to secure Hogwarts Legacy. Hogwarts Legacy

First, DRM creates a "fingerprint" of the game owner's system, and a Steam Ticket is used to prove ownership of the game. The Steam Ticket is sent to the Steam servers to ensure that the game was purchased legally. Heumann mentions that he doesn't technically know what Steam's servers do, but he says that this thought helped him a lot in understanding how Denuvo works.

Once the Steam Ticket is verified, a Denuovo Token is generated that only works on a computer with the exact fingerprint. This token is used to decrypt certain values ​​when the game is running, allowing the system to run the game without problems. In addition, the game uses the Steam Ticket to periodically verify it during the of the game, making Denuvo protection extremely difficult to crack.

After six months, Heumann was able to figure out how to steal Hogwart Legacy's Steam Ticket and use it to run the game on another machine. Use Qiling framework to recognize most of the Steam Ticket activations, which took him two months.

There was a third protection that he says he discovered by accident. In the end, he was able to most of Denuvo DRM with about 2.000 of its own patches and hooks. So he was able to run the game on his laptop using the token (Steam Ticket) created on his desktop.

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Written by giorgos

George still wonders what he's doing here ...

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