ASM Shellcode Project

This project contains assembly language (ASM) programs and scripts for generating and executing shellcodes. The ASM programs are designed to work in both 32-bit (asm32) and 64-bit (asm64) architectures.

Directories

• asm32/: Contains ASM source files and Makefile scripts for 32-bit architecture.
• asm64/: Contains ASM source files and Makefile scripts for 64-bit architecture.

ASM Files

The ASM source files include the following:

• asm01.s: ASM program that returns 0.
• asm02.s: ASM program that displays "1337" and returns 0.
• asm03.s: ASM program that displays "1337" and returns 0 if the input is 42, otherwise 1.
• asm04.s: ASM program that returns 0 if the entered number is even, otherwise 1.
• asm05.s: ASM program that executes asm01.
• asm06.s: ASM program that executes /bin/sh.

Scripts

• Makefile: Makefile scripts for assembling and linking ASM programs into executable files.
• create_shellcode.sh: Script to generate shellcodes from ASM programs.
• build.sh: Script to BUILD and link ASM files for both 32-bit and 64-bit architectures.

Usage

1. Use the Makefile scripts to assemble and create executable files in 32-bit or 64-bit.
2. Use create_shellcode.sh to generate shellcodes from ASM programs.
3. Use build.sh to build all ASM programs for both 32-bit and 64-bit architectures.

Usage

1. Directory Structure

Organize your assembly programs into two directories:

• asm32: Place your 32-bit assembly programs (with the .s extension) in this directory.
• asm64: Place your 64-bit assembly programs (with the .s extension) in this directory.

2. Compilation

To compile an assembly program, use the following command:

    make <target>

• <target> should be in the format asm32/program for 32-bit programs or asm64/program for 64-bit programs.

For example, to compile asm01 in 32-bit mode, use the following command:

    make asm32/asm01

To compile asm02 in 64-bit mode, use:

    make asm64/asm02

Cleaning Up

You can remove compiled files and object files with the following command:

    make clean

Example

Here's an example of how to compile an assembly program:

1. Create a file named asm01.s in the asm32 directory with your 32-bit assembly code or asm64 directory for 64-bit code.

2. Open a terminal and navigate to the directory containing the Makefile.

3. Compile asm01.s in 32-bit mode:

    make asm32/asm01

This will generate an executable file named asm01 in the asm32 directory.

4. Run the compiled program:

    ./asm32/asm01