Linux/x86 - Egg-hunter Shellcode (25 bytes)

/ ;author: Filippo "zinzloun" Bersani ;date: 25/11/2016 ;version 1.0 ;purpose: different approach with fnstenv technique, changed the usual pattern to find the egg mark ;X86 Assembly/NASM Syntax ;tested on: Linux OpenSuse001 2.6.34-12-desktop 32bit ; Linux ubuntu 3.13.0-100-generic...

Alpha2 Alphanumeric Uppercase Encoder

Encodes payloads as alphanumeric uppercase text. This encoder uses SkyLined's Alpha2 encoding suite. A pure alpha encoder is impossible without having a register that points at or near the shellcode. In a default configuration the first few bytes at the beginning are an fnstenv getpc stub the sam...

Variable-length Fnstenv/mov Dword XOR Encoder

This encoder uses a variable-length mov equivalent instruction with fnstenv for getip. This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Variable-length Fnstenv/mov Dword XOR Encoder',...