Introduction
This is assignment #3 of the SLAE x86 Exam objectives.
Objectives
- Study about the Egg Hunter shellcode
- Create a working demo of the Egghunter
- Should be configurable for different payloads
Tag: shellcoding
C: changing shellcode bytes at the middle (or at shellcode offset)
The Problem
While writing a bindshell shellcode for the SLAE32 course Assignment #1, which will be described in details another blog post, there was an interesting issue while coding the C program. As the exercise required some flexibility on passing the port as an argument, the issue was that there is not a direct way to alter the 2 bytes of shellcode in C, so if you are looking for a way to change some bytes at the middle or at an offset of your shellcode the solution follows below.
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