Instruction Set Randomization

Motivation

The attackers can inject instructions to the executables. 

Definition

Instead of executing the executable directly, we add randomizations to the executable, and de-randomize when execute.

Randomization

  • XOR
    • Use a key to XOR with the instruction, and XOR again when execute

Reference

[1] https://www.youtube.com/watch?v=ZgNBjwXTrqA

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