14

Apr

How to UPDATE Windows if your computer has been affected Conficker!

Posted by Yuka as Other

[ Summary ]
A vulnerability was reported in Windows Services for UNIX. A user can execute arbitrary code on the target system. A user can exploit unspecified flaws in the ‘unlzh.c’ and ‘unpack.c’ libraries to execute arbitrary code on the target system. The code will run with the privileges of the target service or application.

Systems with Windows Services for UNIX and the Subsystem for UNIX-based Applications (SUA) installed are affected.

You need to remove the worm with the following third party anti-virus programs follow by the last topic at the bottom, follow my steps in updating windows.

[ Affected Systems ]

* Microsoft Windows Services for UNIX 3.0 Standard Edition
* Microsoft Windows Services for UNIX 3.5
* Windows Server 2008 R2 Datacenter
* Windows Server 2008 Datacenter
* Windows Server 2008 Enterprise
* Windows Server 2008 Standard
* Windows Vista Enterprise
* Windows Vista Ultimate
* Windows Vista Enterprise 64-bit Edition
* Windows Vista Ultimate 64-bit Edition

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Removal Instructions
Microsoft: http://support.microsoft.com/kb/962007

Malwarebytes: http://www.tinyurl.com/dlmalwarebytes (download)

Kaspersky: http://support.kaspersky.com/faq/

BitDefender: http://www.bitdefender.com/VIRUS-1000462-en–Win32.Worm.Downadup.Gen.html

TrendMicro: http://www.trendmicro.com/vinfo/virusencyclo/default5.asp

To be able to access Anti-Virus vendors and SANS, Microsoft and others, from an infected Conficker.C machine, TrendMicro suggests to use “net stop dnscache” from the command line.
Sophos: http://www.sophos.com/support/knowledgebase/article/51416.html
Removal Tools
Microsoft MSRT:
http://www.microsoft.com/security/malwareremove/default.mspx
F-Secure: ftp://ftp.f-secure.com/anti-virus/tools/beta/f-downadup.zip
AhnLab: link no longer valid.
Symantec:
http://www.symantec.com/business/security_response/writeup.jsp?docid=2009-011316-0247-99

McAfee: http://vil.nai.com/vil/stinger/

ESET: http://download.eset.com/special/EConfickerRemover.exe

BitDefender: http://www.bdtools.net/

Kaspersky: http://data2.kaspersky-labs.com:8080/special/KidoKiller_v3.3.3.zip

TrendMicro: http://www.trendmicro.com/download/dcs.asp

Sophos: https://secure.sophos.com/products/free-tools/conficker-removal-tool-network/download (registration required)

Sunbelt: http://www.sunbeltsecurity.com/DownLoads.aspx

Conficker Remote Scanners
nmap nmap 4.85BETA5 now includes Conficker detection

http://insecure.org/

nessus http://www.nessus.org/plugins/index.php?view=single&id=36036

McAfee http://www.mcafee.com/us/enterprise/confickertest.html

eEye http://www.eeye.com/html/downloads/other/ConfickerScanner.html

Conficker Working Group Information

Conficker Working Group
http://www.confickerworkinggroup.org
ShadowServer

http://www.shadowserver.org/wiki/pmwiki.php?n=Calendar.20090212 (very good explanation of the importance of this group)
Arbor networks http://asert.arbornetworks.com/2009/02/the-conficker-cabal-announced/
ICANN
http://www.icann.org/en/announcements/announcement-2-12feb09-en.htm

Symantec
https://forums.symantec.com/t5/Malicious-Code/Coalition-Formed-in-Response-to-W32-Downadup/ba-p/388129

General Information
Microsoft End user/Consumer page
http://www.microsoft.com/protect/computer/viruses/worms/conficker.mspx

IT Security/Professional Page
http://technet.microsoft.com/en-us/security/dd452420.aspx

Centralized information about Conficker
http://blogs.technet.com/mmpc/archive/2009/01/22/centralized-information-about-the-conficker-worm.aspx

SecureWorks
http://www.secureworks.com/research/threats/downadup-removal/

Research (technical)
SRI http://mtc.sri.com/Conficker

MNIN Security Blog
http://mnin.blogspot.com/2009/01/downatool-for-downadupbconflickerb.html

This is an awesome tool that generates domains, and ips to scan using the reversed algorithms from conficker.

ThreatExpert Blog
http://blog.threatexpert.com/2009/01/confickerdownadup-memory-injection.html

CERT.at
http://www.cert.at/static/conficker/TR_Conficker_Detection.pdf
Great paper that covers setting up your local DNS server to mitigate/alert on infections.
Sample zonefiles can be downloaded here: http://www.cert.at/english/downloads/downloads.html

CA Writeup dated 3/11/09
Screenshots of April 1st Trigger

Honeynet Project
A useful analysis and supporting tools from the Honeynet project can be found at:
https://www.honeynet.org/files/KYE-Conficker.pdf and
http://iv.cs.uni-bonn.de/wg/cs/applications/containing-conficker/

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If you are unable to update windows via Internet Explorer, you may want to download Microsoft Baseline Security Analyzer to patch manually. the download link is given below.

http://www.microsoft.com/downloads/details.aspx?FamilyID=F32921AF-9DBE-4DCE-889E-ECF997EB18E9&displaylang=en

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