A runtime Assembly (Shellcode) Development and Analysis Tool

This is a Assembly REPL (Read-Eval-Print Loop) tool for assembling, analyzing, and executing x86-64 assembly as form of shellcode.

• Symbol introspection with base address resolution
• Interactive shellcode development environment
• Symbol lookup and analysis tools
• File save/load asm/shellcode

Ensure you have the following dependencies installed:

• Nasm: Netwide Assembler
• Capstone: Disassembler library
• Readline: Command-line editing library

git clone https://github.com/x3ric/asm
cd asm
make

make run

• h / hex: Enter shellcode as hexadecimal
• a / asm: Enter shellcode in assembly language

• r / run: Execute the assembled code
• s / show: Disassemble and display the code
• d / dump: Hex dump the raw shellcode bytes
• c / clear: Clear the shellcode buffer

• sv / save: Save asm/shellcode to a file
• ld / load: Load asm/shellcode from a file

• b / base: Set the base address
• sy / syntax: Toggle between Intel/AT&T syntax

• sm / symbols: List all symbols
• sg / symgrep: Search symbols by pattern
• so / symoffset: Get offset from main
• sr / symraw: Generate shellcode for an offset

• ? / help: Display help message
• q / exit: Quit the program

• ShellStorm