Packet Storm - Information Security News, Files, Tools, Exploits, Advisories and Whitepapers http://packetstormsecurity.org/ en-us Mon, 28 May 2012 10:37:38 GMT 144400 http://packetstormsecurity.org/ http://www.google-analytics.com/__utm.gif?utmwv=1.3&utmn=2133741710&utmcs=ISO-8859-1&utmsr=31337x31337&utmsc=32-bit&utmul=en-us&utmje=0&utmfl=-&utmcn=1&utmdt=Files%u2248%20Packet%20Storm&utmhn=packetstormsecurity.org&utmr=-&utmp=%2Fpapers%2Fshellcode%2F&utmac=UA-18885198-1&utmcc=__utma%3D32867617.2133741710.1338201458.1338201458.1338201458.1%3B%2B__utmz%3D32867617.1338201458.1.1.utmccn%3D(direct)%7Cutmcsr%3D(direct)%7Cutmcmd%3D(none) http://packetstormsecurity.org/files/108146/ConstruindoShellcodes.txt http://packetstormsecurity.org/files/108146/ConstruindoShellcodes.txt http://packetstormsecurity.org/files/108146/Construindo-Shellcodes.html Sun, 25 Dec 2011 06:23:27 GMT Whitepaper called Construindo Shellcodes. It discusses how to build shellcodes and use them. Written in Portuguese. http://packetstormsecurity.org/files/104751/x64_xor_encoder_2.txt http://packetstormsecurity.org/files/104751/x64_xor_encoder_2.txt http://packetstormsecurity.org/files/104751/Simple-x64-XOR-Shellcode-Obfuscation.html Fri, 02 Sep 2011 21:56:29 GMT This is part two of the Simple x64 XOR Shellcode Encoder / Loader paper that adds in simple obfuscation. http://packetstormsecurity.org/files/104576/x64_xor_encoder.txt http://packetstormsecurity.org/files/104576/x64_xor_encoder.txt http://packetstormsecurity.org/files/104576/Simple-x64-XOR-Shellcode-Encoder-Loader.html Tue, 30 Aug 2011 02:00:21 GMT This is a simple tutorial that also provides a code example on doing a x64 xor encoder and loader for shellcode. hello_world, shell with setreuid, and portbind shellcode examples are provided. http://packetstormsecurity.org/files/103297/own-shellcode.pdf http://packetstormsecurity.org/files/103297/own-shellcode.pdf http://packetstormsecurity.org/files/103297/How-To-Create-Your-Own-Shellcode-On-Arch-Linux.html Sat, 23 Jul 2011 14:11:59 GMT Whitepaper called How To Create Your Own Shellcode On Arch Linux. http://packetstormsecurity.org/files/99847/manual-shellcode.pdf http://packetstormsecurity.org/files/99847/manual-shellcode.pdf http://packetstormsecurity.org/files/99847/Writing-Manual-Shellcode-By-Hand.html Tue, 29 Mar 2011 20:32:18 GMT Whitepaper called Writing Manual Shellcode by Hand. http://packetstormsecurity.org/files/96307/arm-shellcode.txt http://packetstormsecurity.org/files/96307/arm-shellcode.txt http://packetstormsecurity.org/files/96307/How-To-Create-Shellcode-On-ARM-Architecture.html Thu, 02 Dec 2010 05:55:20 GMT Whitepaper called How To Create a Shellcode on ARM Architecture. http://packetstormsecurity.org/files/90693/how-to-create-polymorphic-shellcode.txt http://packetstormsecurity.org/files/90693/how-to-create-polymorphic-shellcode.txt http://packetstormsecurity.org/files/90693/how-to-create-polymorphic-shellcode.txt.html Thu, 08 Jul 2010 05:43:40 GMT Whitepaper called How to create a polymorphic shellcode. http://packetstormsecurity.org/files/90692/how-to-create-shellcode.txt http://packetstormsecurity.org/files/90692/how-to-create-shellcode.txt http://packetstormsecurity.org/files/90692/how-to-create-shellcode.txt.html Thu, 08 Jul 2010 05:42:59 GMT Whitepaper called How to create a shellcode on Linux / x86. http://packetstormsecurity.org/files/87024/exploit-writing-tutorial-part-9-win32-shellcoding.pdf http://packetstormsecurity.org/files/87024/exploit-writing-tutorial-part-9-win32-shellcoding.pdf http://packetstormsecurity.org/files/87024/Introduction-To-Win32-Shellcoding.html Tue, 09 Mar 2010 21:37:49 GMT Introduction to Win32 shellcoding. Part 9 in a series of tutorials. http://packetstormsecurity.org/files/87023/exploit-writing-tutorial-part-8-win32-egg-hunt.pdf http://packetstormsecurity.org/files/87023/exploit-writing-tutorial-part-8-win32-egg-hunt.pdf http://packetstormsecurity.org/files/87023/Win32-Egg-Hunting.html Tue, 09 Mar 2010 21:35:40 GMT Win32 Egg Hunting. Part 8 in a series of tutorials. http://packetstormsecurity.org/files/86975/Writing-JIT-Spray-Shellcode.pdf http://packetstormsecurity.org/files/86975/Writing-JIT-Spray-Shellcode.pdf http://packetstormsecurity.org/files/86975/Writing-JIT-Spray-Shellcode-For-Fun-And-Profit.html Mon, 08 Mar 2010 21:18:56 GMT Whitepaper called Writing JIT-Spray Shellcode For Fun And Profit. http://packetstormsecurity.org/files/86747/win32-shellcoding.pdf http://packetstormsecurity.org/files/86747/win32-shellcoding.pdf http://packetstormsecurity.org/files/86747/Introduction-To-Win32-Shellcoding.html Sat, 27 Feb 2010 00:58:55 GMT Exploit writing tutorial 9 - Introduction to Win32 shellcoding. http://packetstormsecurity.org/files/86114/Building_your_own_Shell.pdf http://packetstormsecurity.org/files/86114/Building_your_own_Shell.pdf http://packetstormsecurity.org/files/86114/Building-Your-Own-Shellcode.html Wed, 10 Feb 2010 01:00:14 GMT Whitepaper called Building Your Own Shell-codes. http://packetstormsecurity.org/files/82878/ccs243-mason.pdf http://packetstormsecurity.org/files/82878/ccs243-mason.pdf http://packetstormsecurity.org/files/82878/Whitepaper-Called-English-Shellcode.html Tue, 24 Nov 2009 20:31:59 GMT Whitepaper called English Shellcode. In this paper, they challenge the assumption that shellcode must conform to superficial and discernible representations. Specifically, they demonstrate a technique for automatically producing English Shellcode, transforming arbitrary shell-code into a representation that is superficially similar to English prose. http://packetstormsecurity.org/files/79009/CSE-TR-532-07.pdf http://packetstormsecurity.org/files/79009/CSE-TR-532-07.pdf http://packetstormsecurity.org/files/79009/Spector-Automatically-Analyzing-Shell-Code.html Wed, 08 Jul 2009 18:26:43 GMT Whitepaper called Spector: Automatically Analyzing Shell Code. http://packetstormsecurity.org/files/76421/shellcode-linux.pdf http://packetstormsecurity.org/files/76421/shellcode-linux.pdf http://packetstormsecurity.org/files/76421/Creating-Shellcode-For-Linux-x86-32-bit.html Tue, 07 Apr 2009 22:35:53 GMT Whitepaper called Creating Shellcode for the Linux x86 32-bit architecture. Written in French. http://packetstormsecurity.org/files/70599/ShellCodeForBeginners.pdf http://packetstormsecurity.org/files/70599/ShellCodeForBeginners.pdf http://packetstormsecurity.org/files/70599/ShellCodeForBeginners.pdf.html Fri, 03 Oct 2008 18:11:59 GMT ShellCode For Beginners - A short whitepaper discussing what defines shellcode and simple fundamentals surrounding its use. http://packetstormsecurity.org/files/55775/shellcode.pdf http://packetstormsecurity.org/files/55775/shellcode.pdf http://packetstormsecurity.org/files/55775/shellcode.pdf.html Tue, 10 Apr 2007 05:32:31 GMT Whitepaper: Linux Shellcoding Reference. http://packetstormsecurity.org/files/40192/WritingSmallShellcode.pdf http://packetstormsecurity.org/files/40192/WritingSmallShellcode.pdf http://packetstormsecurity.org/files/40192/WritingSmallShellcode.pdf.html Fri, 23 Sep 2005 05:14:50 GMT This paper describes an attempt to write Win32 shellcode that is as small as possible, to perform a common task subject to reasonable constraints. The solution presented implements a bindshell in 191 bytes of null-free code, and outlines some general ideas for writing small shellcode. http://packetstormsecurity.org/files/39008/ecl-poly.txt http://packetstormsecurity.org/files/39008/ecl-poly.txt http://packetstormsecurity.org/files/39008/ecl-poly.txt.html Fri, 05 Aug 2005 05:29:21 GMT Whitepaper entitled 'NIDS Polymorphic Evasion - The End?'. This paper explains how even the most modern of NIDS fail to detect polymorphic shellcode. http://packetstormsecurity.org/files/35079/whitepaper_shellcode.html http://packetstormsecurity.org/files/35079/whitepaper_shellcode.html http://packetstormsecurity.org/files/35079/whitepaper_shellcode.html.html Sat, 20 Nov 2004 21:27:47 GMT Writing IA32 Restricted Instruction Set Shellcode Decoder Loops - This article addresses the requirements for writing a shellcode decoder loop using a limited number of characters that limits the instruction set. Most of it is based on the author's experience with alphanumeric decoders but the principles apply to any piece of code that is written to work with a limited instruction set. http://packetstormsecurity.org/files/34622/intro_to_shellcoding.pdf http://packetstormsecurity.org/files/34622/intro_to_shellcoding.pdf http://packetstormsecurity.org/files/34622/intro_to_shellcoding.pdf.html Wed, 13 Oct 2004 07:13:02 GMT Introduction to Shellcode: How to exploit buffer overflows. A very thorough and well written paper on how it all works. A good read for anyone curious and even those who already think they know it all. It includes step by step examples from vulnerability discovery to a finished exploit. The paper focuses on x86 Intel syntax assembly under Linux.