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Reverse Engineering Methodology, Tools & Resources

Learn C and assembly. 

 C, Assembly & Reverse Engineering CTF’s playlist:

x86 Assembly Guide Link

Syntax:
je <label> (jump when equal)
jne <label> (jump when not equal)
jz <label> (jump when last result was zero)
jg <label> (jump when greater than)
jge <label> (jump when greater than or equal to)
jl <label> (jump when less than)
jle <label> (jump when less than or equal to)

Example

cmp %ebx, %eax
jle done

Compiler Explorer:

Compiler Explorer
Compiler Explorer is an interactive online compiler which shows the assembly output of compiled C++, Rust, Go (and many…godbolt.org

Decompiler Explorer:

Decompiler Explorer
Decompiler Explorer is an interactive online decompiler which shows equivalent C-like output of decompiled programs…dogbolt.org

 — — → TOOLS 🛠️ ← — — 

Windows 🪟

 x64dbg Files

  • An open-source x64/x32 debugger for Windows.


LINUX🐧

Commands:

file <filename>

strings <filename>

objdump -T <your_executable_file> #show function names, along with their addresses in memory

objdump -d <your_executable_file>  #display the disassembled instructions

ltrace ./<file eg:a.out>
#USING GDB
gdb <your_executable_file>

info functions
gdb: How To Use In CTFs
If you enjoy my writing, [Buy Me a Coffee]towardsdev.com

Python:

  1. Angr is a popular Python framework used for binary analysis, particularly in the domain of reverse engineering
pip error in Kali Linux: error: externally-managed-environment: SOLVED
error: externally-managed-environment × This environment is externally managed ╰─> To install Python packages…adithyakrishnav.blogspot.com

 Cutter

FREE and open-source reverse-engineering platform.

IDA Free

Debug an interactive program and need input/output, you should open it in a terminal with this command:

cat | ./ida64

edb-debugger

edb is a graphical cross platform x86/x86–64 debugger. It was inspired by Ollydbg.

Radare2

Radare2 (often abbreviated as r2) is a powerful, open-source reverse engineering framework used for analyzing binaries, disassembling, debugging, and more.

linux-exploit-suggester

This package contains a Linux privilege escalation auditing tool. It’s designed to assist in detecting security deficiencies for given Linux kernel/Linux-based machine.

root@kali:/usr/share/linux-exploit-suggester# ./Linux_Exploit_Suggester.pl -k 3.0.0

Kernel local: 3.0.0

Possible Exploits:
[+] semtex
   CVE-2013-2094
   Source: http://www.exploit-db.com/download/25444/‎
[+] memodipper
   CVE-2012-0056
   Source: http://www.exploit-db.com/exploits/18411/
[+] perf_swevent
   CVE-2013-2094
   Source: http://www.exploit-db.com/download/26131

lldb

LLDB is a debugger that is part of the LLVM project, used for debugging programs written in languages like C, C++, and Objective-C.




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