mailing list archives
Re: exploits for client side attacks not work
From: Atul Agarwal <atul () secfence com>
Date: Tue, 22 Jun 2010 12:33:30 +0530
Yes, addition of a custom packer for js based exploits in framework itself
will be a plus.
One thing more that can be added is the option of setting up multiple
filters, and user defined chaining, in PDF based exploits.
Maybe Someone can port some of Origami framework's (
http://seclabs.org/origami/) code (as its in ruby too) to msf.
On Tue, Jun 22, 2010 at 1:44 AM, Spring Systems <korund () hotmail com> wrote:
so difficult task. But it is much more complex to do all this manually,
separately, then assemble parts manually into the final exploit file.
Metasploit is handy as it allows to create exploits automatically. It would
(include adding custom encoding manually) depending on situations or tasks.
What do you think?
From: atul () secfence com
Date: Tue, 22 Jun 2010 00:09:16 +0530
Subject: Re: [framework] exploits for client side attacks not work
To: korund () hotmail com
CC: framework () spool metasploit com
Yes, only encoding the payload is not going to help you.
As an example, in order to make the exploit undetectable, you will have to
PDF exploits - geticon(), newplayer() et al, libtiff doesn't utilise js for
publicly available js packers for the same (eg.
http://dean.edwards.name/packer/, <- heavily used). As they are public,
is also not much difficult. Also, you could pack the js again and again
using same or different packers.
A nice place to find obfuscated js exploits is the exploit packs, which you
can get at any "underground" forum. Also keep checking the MDL (
http://malwaredomainlist.com/) for samples. Look into them.
Another approach to make the PDF exploits undetectable is to chain the
stream filters. Refer to
http://blog.didierstevens.com/2008/05/19/pdf-stream-objects/ for details.
I know, all the above will have to be done manually, outside metasploit.
But hey, metasploit is available to the AV guys too, and they can always
generate the samples and add signature/heuristics to the ways available in
the msf. So you will have to think differently.
Hope it helped.
On Mon, Jun 21, 2010 at 8:09 PM, Rob Fuller <mubix () room362 com> wrote:
AVs are flagging on the exploited function (or should be), which is
the basis for the exploit. Encoding the payload a million times will
not help you. You are welcome to try for yourself though.
Rob Fuller | Mubix
Room362.com | Hak5.org
On Mon, Jun 21, 2010 at 9:17 AM, Spring Systems <korund () hotmail com>
PDF exploits for client side attacks not work at all, due 100% detection
AVs as exploits.
This PDF will be useless unless Metasploit change payloads encoding
allowing to select verious encoding options
during the exploit creation.
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