Assignment #6 - Reverse Engineering
Download [PDF] [attachment]
Late Policy
- You have free 3 late days.
- You can use late days for assignments. A late day extends the deadline 24 hours.
- Once you have used all 3 late days, the penalty is 10% for each additional late day.
Assignment 6: Reverse Engineering with GDB
Objective
In this assignment, you will reverse engineer a binary executable using GDB to discover a hidden password. The goal is to practice debugging and reverse engineering techniques.
Instructions
Tools and Commands
-
objdump: Disassemble the binary to get the assembly code.
objdump -d -M intel assignment6 > assignment6.asm -
GDB: Debug the binary to inspect its execution.
Steps
-
Start GDB and load the binary:
gdb ./assignment6 -
Set a breakpoint at the
mainfunction:
(gdb) break main -
Run the program:
(gdb) run -
Disassemble the current function:
(gdb) disas -
Use GDB commands like
disas,info registers,x, andstepto analyze the binary and understand its behavior.
Submission
Submit a report detailing the steps you took to reverse engineer the binary and the discovered password.
Extra Credit
Recreate the binary in the language of your choice.