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Denuvo Analysis

Foreword This post is intended for educational purposes only. Denuvo is arguably the most successful digital rights management solution to have ever existed, and is therefore an interest to many.

This is due to the fact that if the hardware information collected at runtime is not the equal to that of which was used to create the license file on the Denuvo server, then an incorrect stolen constant will be decrypted and the game will likely suffer (most of the time this is a direct crash). Recall from a previous section, if the hardware identification collected at runtime does not align with that which was used on the Denuvo server to encrypt the constant, then(3) will likely yield a result that is not equal to-4; causing undefined behaviour. If the user had placed a breakpoint, hook, or tampered with the word stored at 0x00000001467FEE8D(which iirc, is a CPUID), then the VM would likely end up executing a random handler since the resulting value in R13 would differ; causing undefined behaviour.

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