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Re: computer with rootkit?
From: rogue5 <rogue5 () bluemarble net>
Date: Thu, 29 Sep 2011 13:32:42 -0400

Not really, because it's not just the rootkit. Usually, once the rootkit is installed, the other stuff gets downloaded and installed, things to log keystrokes, spread the infection, redundancies to keep access to the machine. The reason you nuke the site from orbit is because it's the only way to be sure you got it all.




On Thu, 29 Sep 2011 16:35:31 +0000, Jamie Ivanov wrote:
Clearly you don't have any experience with rootkits. If one were to
get loaded from boot (bootkit) to initialize a driver or hook a
driver, once the kernel SSDT gets modified your process list becomes
inaccurate. You cannot perform *ANY* rootkit removal on an active
system or your changes will be nullified by monitoring hooks.

You need an offline environment like the Hirens boot CD to load
portable envoronment. Not only wipe the mbr but check loaded drivers
at each runlevel then check local user and global registry startup
points. Also a system file check to verify/replace modified system
files. Then, and only then, you can even run your malware finders such
as combofix, malwarebytes antimalware, and spybot s&d.

Repairing a rootkit infection is not that difficult. I've been
reverse engineering them for years. Those who have suggested a
reinstall should be ashamed.
Jamie Ivanov / KC9LFD
m.608.399.4252
Blackberry: 32DD619E
http://www.linkedin.com/in/jamieivanov
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-----Original Message-----
From: Brian Rogalski <brogalski () bkrservices com>
Sender: listbounce () securityfocus com
Date: Thu, 29 Sep 2011 07:01:20
To: security basics<security-basics () securityfocus com>
Subject: RE: computer with rootkit?

There are a few things that you could try...

Use tools like process hacker, what's running, capture bat and regshot ... Process explorer and process monitor can tell you what path and device
files are being used. Also look at the

(HKLM\currentversion\microsoft\windows\software\run) key in the registry ... most malicious program want to stay resident after a reboot... You can
use a tool called autoruns at well.

It looks like you may have a Kernel mode root kit. There is only so far that those tools will take you .. To complete your process you are going to have to dump the executable to a unaffected machine and perform more
behavioral analysis follow by code and memory forensics.

Hope that helps

Brian


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