Full Disclosure mailing list archives

Re: Inside AV engines?


From: AgentSmith15 <agentsmith15 () gmail com>
Date: Wed, 14 Dec 2005 13:22:18 -0600

I have to warn you about Morphine that if you use it AVs like KAV will
detect and warn a user that this is a morphined file + scan inside. It's
also open source in Delphi so with a couple modifications you should be good
:)



On 12/13/05, Fósforo <fosforo () gmail com> wrote:

... or you can try one crypt/packer ($$$) called Morphine -
http://hxdef.czweb.org/
Assuming your company is going to support an exclusive antidetection
tool like that

2005/12/13, Michael Tewner <tewner () jct ac il>:
Check The Art of Computer Virus Research and Defense (Paperback)
by Peter Szor. It is one of the foremost books in Virus detection,
etc,
and I found it to be a valuable read...

Examples are in C code, and there's a lot of memory dumping, etc.
Check
slashdot's review if you want.

Jeroen wrote:
For penetration testing on Wintel system, I often use netcat.exe and
stuff
like pwdump. More and more I need to disable anti-virus services
before
running the tools to avoid alarms and auto-deletion of the
applications. It
works but it isn't an ideal situation since theoretically a network
can be
infected while the AV-services are down. Recompiling tools is an
option
since the source of many tools I use is available. The question is
(before I
burn useless CPU cycles): can someone help me getting info about the
inside
of AV engines? Will addition of some rubbish to the code do the
trick (->
other checksum), do I need to change some core code or is it a
mission
impossible anyway? Who can help for example getting some useful
research
papers on the subject of detecting viruses and how to bypass
mechanisms
used? Any help will be appreciated.


Greets,

Jeroen


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