[REVS] Worm Analysis - Microsoft LSASS Buffer Overflow from Exploit to Worm

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Date: 6 Oct 2004 14:37:20 +0200

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  Worm Analysis - Microsoft LSASS Buffer Overflow from Exploit to Worm
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SUMMARY

The document linked below provides a thorough analysis of a worm that
exploits the vulnerability discussed in
<http://www.securiteam.com/windowsntfocus/5YP0C15CKY.html> Windows Local
Security Authority Service Remote Buffer Overflow (MS04-011). The paper
explains the original exploit code, how it is used by a malicious
attacker, and how the worm was developed from it.

DETAILS

Statement of Purpose:
This paper is an analysis of the vulnerability in the Microsoft Local
Security Authority Service. This vulnerability has been widely exploited
and at the time of this writing it has been implemented into most new
worms that are released. Publicly released exploit code (released by
houseofdabus) will be examined to show how it is compiled and then used
against targets. We will show the attacker can use tools such as Netcat to
gain access to the compromised machines. We will then review how with the
use of tools such as Snort and Ethereal we can detect and monitor the
attack. Lastly, we will show common utilities can be combined to create a
snapshot of a compromised system. Next a worm that utilizes this attack
will be analyzed. For this paper we will review the Korgo.V worm. This
paper reviews the 5 steps of system exploitation. These steps are
Reconnaissance, Scanning, Exploiting the System, Keeping Access and
Covering Tracks. Finally, the six step Incident Handling process developed
by the SANS Institute to show how to contain this threat is examined. We
will also review a few different ways companies can prevent this type of
threat from wreaking havoc on their networks.

The whitepaper can be found at:
<http://www.giac.org/practical/GCIH/Travis_Abrams_GCIH.pdf> Microsoft
LSASS Buffer Overflow from exploit to worm

ADDITIONAL INFORMATION

The original article can be found at:
<http://www.giac.org/practical/GCIH/Travis_Abrams_GCIH.pdf>
http://www.giac.org/practical/GCIH/Travis_Abrams_GCIH.pdf

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