Home page logo
/

basics logo Security Basics mailing list archives

RE: Malware Analysis
From: "Murda Mcloud" <murdamcloud () bigpond com>
Date: Tue, 10 Nov 2009 10:13:50 +1000

Good points. I know that the OP was asking for straightforward tools for
some basic tasks but I began to wonder whether having the ability to capture
the physical memory as well might come in useful, especially as the systems
may be allowed to stay 'live'. Windd is good for that.

-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com]
On Behalf Of kmj1268 () comcast net
Sent: Tuesday, November 10, 2009 5:10 AM
To: security-basics () lists securityfocus com
Subject: Malware Analysis

In relation to the copied thread below, this is some great discussion.

I have been fascinated with the science of malware analysis myself, and
there is so much to learn.  While I am not an expert, what I generally
see
happen with a machine is processes (either hidden by rootkits or not
hidden) taking over network connections and phoning home to control and
command centers to grow the botnet army.  You always have to take the
assumption that you could have a rootkit and start from there.  The
problem
with rootkits is they make everyday programs on the suspect's running OS
that should be innocuous operate differently and hide behavior.  What I
have always seen as a recommendation is to take a suspect machine's drive
out and have it scrubbed and analyzed with a live forensic distro. Better
yet, use a Live CD distro such as clonezilla to create a bit for bit
clone
of the hard drive.  A popular one is Trinity Rescue.  The key is working
with something that is not native to the suspect machine.  You cant trust
the programs or what kind of response you might get if you run programs
on
a possibly rootkitted machine or one that is compromised.  What you can
trust is the programs on a live CD/DVD and the traffic you see on your
network.  Now when the machine is running and I want to do analysis, I
usually will carry a hub with me (they are certainly hard to find now
adays) and will run wireshark on the traffic for the suspect machine.
Have
it running with all explorer sessions shut down and the machine started
from a reboot - but the machine doesnt need to be connected to the
network.
If there are rogue processes they will show up in wireshark.    Then
after
you identify rogue network processes you can use a program like TCPView
which will tie back a connection to a program and then you can
investigate
that program to see if it is malicious.

Anyways, I just wanted to chime in and say thanks and offer my two cents
for whatever it is worth. There is certainly more than one way to
approach
the analysis.  I would be interested in learning more about the processes
folks on this thread run through in this type of event.

There is some excellent feedback and advice in this thread and I am glad
to be able to take away some good advice myself.

Thanks so much....

JMK
J. Mark Kellerman, CISSP, CCSA-NGX
Snr Security Engineer.






Sent from my iPhone

Begin forwarded message:

From: Murda Mcloud
<murdamcloud () bigpond com<mailto:murdamcloud () bigpond com>>
Date: November 4, 2009 11:46:13 PM EST
To: 'exzactly' <exzactly () hotmail com<mailto:exzactly () hotmail com>>,
"security-basics () securityfocus com<mailto:security-
basics () securityfocus com>
"
<security-basics () securityfocus com<mailto:security-
basics () securityfocus com>

Subject: RE: Security Toolkit for dummies

Fport might come in handy.
I'm guessing you want 'clean' versions of everything because who knows
what
is running on the box itself or what has been modified.
How will you be able to trust that the cmd window that you run some of
these
from is legit? Or that it will run at all?
Maybe a cmd alternative will help, too.
Fciv so you could check hashes?
Regalyzer?


Will you image the machines before allowing the support guys to do their
stuff?




-----Original Message-----
From: listbounce () securityfocus com<mailto:listbounce () securityfocus com>
[mailto:listbounce () securityfocus com]
On Behalf Of exzactly
Sent: Thursday, November 05, 2009 4:27 AM
To: <mailto:security-basics () securityfocus com>
security-basics () securityfocus com<mailto:security-
basics () securityfocus com>
Subject: Security Toolkit for dummies

I am currently working on a (free)toolkit to pass down to Tier 3 and Tier
2
to be used in the event of a breach/infection or suspected
breach/infection.
In a nutshell I want to give them some tools to use to gain further
information about the system and processes and/or malicious tools running
on
it. This toolkit is designed for a Windows desktop and Server
environment. I
am looking at building out tools that are fairly easy to use and do not
require much training. Currently I have the following tools on it:

(SysInternal tools)
Autoruns
PortMon
Process Explorer
Process Monitor
Ps Tools
Logon Sessions

Other tools:
Adaware


Is there anything else folks out there are using to provide their lower
level support guys with some tools for informational gathering
purposes....the tools have to run offline as systems are removed in the
event of a breach or infection...I am not looking for a full blown
forensics
kit, just something I can train folks unfamiliar with tool fairly
quickly...


------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an
SSL certificate. We look at how SSL works, how it benefits your company
and how your customers can tell if a site is secure. You will find out
how to test, purchase, install and use a thawte Digital Certificate on
your Apache web server. Throughout, best practices for set-up are
highlighted to help you ensure efficient ongoing management of your
encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f
727d1
------------------------------------------------------------------------


------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an
SSL
certificate. We look at how SSL works, how it benefits your company and
how
your customers can tell if a site is secure. You will find out how to
test,
purchase, install and use a thawte Digital Certificate on your Apache web
server. Throughout, best practices for set-up are highlighted to help you
ensure efficient ongoing management of your encryption keys and digital
certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f
727
d1
------------------------------------------------------------------------




--------------------------------------------------------------------
mail2web.com - Enhanced email for the mobile individual based on
MicrosoftR
Exchange - http://link.mail2web.com/Personal/EnhancedEmail



------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an
SSL certificate.  We look at how SSL works, how it benefits your company
and how your customers can tell if a site is secure. You will find out
how to test, purchase, install and use a thawte Digital Certificate on
your Apache web server. Throughout, best practices for set-up are
highlighted to help you ensure efficient ongoing management of your
encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f
727d1
------------------------------------------------------------------------


------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]