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