How can I learn to form strings in shellcodes?

[0x00pf (pico)]

Hi @yogi4you

Check for instance this post:

Remote Exploit. Shellcode without Sockets

In this paper I will present an elegant technique (it’s my opinion, indeed) to get shell access to a vulnerable remote machine. It is not my own technique but I found it very interesting. The focus of this paper is on this technique and not in the way to exploit the vulnerability. Setting your environment So, in order to focus on the remote shell code and not on how to circumvent ASLR, non-executable stacks and so on (that will require lots of writing) we will disable most of these features for…

And this

Linux Shellcoding (Part 1.0)

As promised, here is the shellcode tutorial once again Requirements Alright so this isn’t going to be msfvenom tutorial. (shellcodes are payloads). This tutorial will focus on writing shellcodes using Assembly. Knowledge of C and Assembly is highly recommend. Also knowing how the stack works is a big plus. Memory Segments When a program is run it is loaded in the RAM. Normally 5 segments are used in programs: The stack segment (For function calls (dynamic)). The heap segment (For dynamicly …

The links in this page may also help to understand that string

Books and Sources for Beginners

You certainly seem like somebody who has a realistic view of learning, and will probably go far with your apt attitude. This isn’t a book, but it is very well written and perfect for beginners. Pico’s wannabe articles are perfect. By following these articles, and taking the direction, you can get pretty good pretty fast as long as you have a fairly decent understanding of basic hardware. Good luck! Remember, the IRC has usually always got somebody on, solving problems, or solving…