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Alan Vivona alanvivona

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alanvivona / reverse-tcp-auth-shell-ARMv6.s

Last active April 24, 2019 22:00

A Password-Protected TCP Reverse Shell for Linux/ARM (32-bit ARMv6 - Works on the Raspberry Pi 1)

	// Password-Protected Reverse Shell Linux/ARMv6
	// Author: Alan Vivona
	// medium.syscall59.com
	// @syscall59

	.section .text
	.global _start
	_start:

	.arm

alanvivona / egghunterV1.nasm

Created April 6, 2019 18:44

Egg-hunter shellcode V1

alanvivona / xanax-custom-encoder.nasm

Created March 18, 2019 18:58

XANAX : A custom shellcode encoder written in assembly

	global _start

	segment .data

	keys.xor1 equ 0x29
	keys.add1 equ 0xff
	keys.xor2 equ 0x50
	keys.add2 equ 0x05

	payload.len equ 74 ; this can't be over 127 bytes otherwise it will produce nullbytes

alanvivona / simple-execve-shellcode.nasm

Created March 17, 2019 20:20

A simple execve shellcode example

	; EXECVE
	; RDX = 0x00
	; RSI = 0x00
	; RDI = address of '//bin/sh', 0x00 (the extra slash is just for rounding to 8 bytes)

	section .text

	global _start

	_start:

alanvivona / reverse-tcp-auth-shell.nasm

Last active January 30, 2020 11:04

	; =================================================
	; Password protected x64 TCP Reverse Shell
	; Author: Alan Vivona
	; =================================================

	global _start

	; Syscall numbers
	syscalls.socket equ 0x29
	syscalls.bind equ 0x31

alanvivona / tcp-bind-shell-auth.v2.nasm

Last active July 27, 2019 07:01

alanvivona / tcp-bind-shell.nasm

Last active March 2, 2019 22:50

alanvivona / xanax-decoder.nasm

Created March 2, 2019 19:29

alanvivona / xanax-encoder.nasm

Last active March 2, 2019 19:02

	global _start

	segment .data

	keys.xor1 equ 0x29
	keys.add1 equ 0xff
	keys.xor2 equ 0x50
	keys.add2 equ 0x05

	payload.len equ 74 ; this can't be over 127 bytes otherwise it will produce nullbytes

alanvivona / msfvenom-shell_bind_tcp_random_port.r2out

Created February 22, 2019 21:27

radare2 pd output for msfvenom: linux/x64/shell_bind_tcp_random_port