Malware: Something like "This is not a virus.Win32." [Archive]

buddhafest

2007-09-25, 19:48

My friend had some computer issues and I had them scan their computer for any viruses or malware. A couple of infections showed up from the bearshare program she was using.

I did some cleaning and now I'm hoping an expert may take a look at her Kaspersky report and HJT log to see if her computer is indeed infection free.

Here is the Kaspersky Report

-------------------------------------------------------------------------------
KASPERSKY ONLINE SCANNER REPORT
Tuesday, September 25, 2007 12:38:03 PM
Operating System: Microsoft Windows XP Professional, Service Pack 2 (Build 2600)
Kaspersky Online Scanner version: 5.0.93.1
Kaspersky Anti-Virus database last update: 25/09/2007
Kaspersky Anti-Virus database records: 423154
-------------------------------------------------------------------------------

Scan Settings:
Scan using the following antivirus database: extended
Scan Archives: true
Scan Mail Bases: true

Scan Target - My Computer:
A:\
C:\
D:\
E:\
F:\
G:\
X:\
Z:\

Scan Statistics:
Total number of scanned objects: 54604
Number of viruses found: 0
Number of infected objects: 0
Number of suspicious objects: 0
Duration of the scan process: 00:33:51

Infected Object Name / Virus Name / Last Action
C:\Documents and Settings\All Users\Application Data\Kaspersky Lab\AVP7\Report\00cb_File_Monitoring_eventlog.rpt Object is locked skipped
C:\Documents and Settings\All Users\Application Data\Kaspersky Lab\AVP7\Report\00cd_Web_Monitoring_eventlog.rpt Object is locked skipped
C:\Documents and Settings\All Users\Application Data\Kaspersky Lab\AVP7\Report\00ce_pdm_eventcritlog.rpt Object is locked skipped
C:\Documents and Settings\All Users\Application Data\Kaspersky Lab\AVP7\Report\00ce_pdm_eventlog.rpt Object is locked skipped
C:\Documents and Settings\All Users\Application Data\Kaspersky Lab\AVP7\Report\detected.idx Object is locked skipped
C:\Documents and Settings\All Users\Application Data\Kaspersky Lab\AVP7\Report\detected.rpt Object is locked skipped
C:\Documents and Settings\All Users\Application Data\Kaspersky Lab\AVP7\Report\eventlog.rpt Object is locked skipped
C:\Documents and Settings\All Users\Application Data\Kaspersky Lab\AVP7\Report\report.rpt Object is locked skipped
C:\Documents and Settings\Dawne-Marie\Cookies\index.dat Object is locked skipped
C:\Documents and Settings\Dawne-Marie\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat Object is locked skipped
C:\Documents and Settings\Dawne-Marie\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat.LOG Object is locked skipped
C:\Documents and Settings\Dawne-Marie\Local Settings\History\History.IE5\index.dat Object is locked skipped
C:\Documents and Settings\Dawne-Marie\Local Settings\History\History.IE5\MSHist012007092520070926\index.dat Object is locked skipped
C:\Documents and Settings\Dawne-Marie\Local Settings\Temporary Internet Files\AntiPhishing\B3BB5BBA-E7D5-40AB-A041-A5B1C0B26C8F.dat Object is locked skipped
C:\Documents and Settings\Dawne-Marie\Local Settings\Temporary Internet Files\Content.IE5\index.dat Object is locked skipped
C:\Documents and Settings\Dawne-Marie\NTUSER.DAT Object is locked skipped
C:\Documents and Settings\Dawne-Marie\ntuser.dat.LOG Object is locked skipped
C:\Documents and Settings\LocalService\Cookies\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat.LOG Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\History\History.IE5\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\NTUSER.DAT Object is locked skipped
C:\Documents and Settings\LocalService\ntuser.dat.LOG Object is locked skipped
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat Object is locked skipped
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat.LOG Object is locked skipped
C:\Documents and Settings\NetworkService\NTUSER.DAT Object is locked skipped
C:\Documents and Settings\NetworkService\ntuser.dat.LOG Object is locked skipped
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\logs\access_log Object is locked skipped
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\logs\error.log Object is locked skipped
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\logs\error_log Object is locked skipped
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\logs\ssl_request_log Object is locked skipped
C:\System Volume Information\MountPointManagerRemoteDatabase Object is locked skipped
C:\WINDOWS\Debug\PASSWD.LOG Object is locked skipped
C:\WINDOWS\SoftwareDistribution\ReportingEvents.log Object is locked skipped
C:\WINDOWS\Sti_Trace.log Object is locked skipped
C:\WINDOWS\system32\CatRoot2\edb.log Object is locked skipped
C:\WINDOWS\system32\CatRoot2\tmp.edb Object is locked skipped
C:\WINDOWS\system32\config\AppEvent.Evt Object is locked skipped
C:\WINDOWS\system32\config\default Object is locked skipped
C:\WINDOWS\system32\config\default.LOG Object is locked skipped
C:\WINDOWS\system32\config\Internet.evt Object is locked skipped
C:\WINDOWS\system32\config\SAM Object is locked skipped
C:\WINDOWS\system32\config\SAM.LOG Object is locked skipped
C:\WINDOWS\system32\config\SecEvent.Evt Object is locked skipped
C:\WINDOWS\system32\config\SECURITY Object is locked skipped
C:\WINDOWS\system32\config\SECURITY.LOG Object is locked skipped
C:\WINDOWS\system32\config\software Object is locked skipped
C:\WINDOWS\system32\config\software.LOG Object is locked skipped
C:\WINDOWS\system32\config\SysEvent.Evt Object is locked skipped
C:\WINDOWS\system32\config\system Object is locked skipped
C:\WINDOWS\system32\config\system.LOG Object is locked skipped
C:\WINDOWS\system32\drivers\fidbox.dat Object is locked skipped
C:\WINDOWS\system32\drivers\fidbox.idx Object is locked skipped
C:\WINDOWS\system32\drivers\fidbox2.dat Object is locked skipped
C:\WINDOWS\system32\drivers\fidbox2.idx Object is locked skipped
C:\WINDOWS\system32\h323log.txt Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\INDEX.BTR Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\INDEX.MAP Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\MAPPING.VER Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\MAPPING1.MAP Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\MAPPING2.MAP Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\OBJECTS.DATA Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\OBJECTS.MAP Object is locked skipped
C:\WINDOWS\Temp\Perflib_Perfdata_740.dat Object is locked skipped
C:\WINDOWS\wiadebug.log Object is locked skipped
C:\WINDOWS\wiaservc.log Object is locked skipped
C:\WINDOWS\WindowsUpdate.log Object is locked skipped
D:\System Volume Information\MountPointManagerRemoteDatabase Object is locked skipped
E:\System Volume Information\MountPointManagerRemoteDatabase Object is locked skipped
F:\System Volume Information\MountPointManagerRemoteDatabase Object is locked skipped

Scan process completed.

Here is the HJT Log

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:40:33 PM, on 9/25/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16512)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\TuneUp Utilities 2006\WinStylerThemeSvc.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\avp.exe
C:\Program Files\Diskeeper Corporation\Diskeeper\DkService.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Linksys Wireless-G PCI Wireless Network Monitor\WLService.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcAppFlt.exe
C:\Program Files\Linksys Wireless-G PCI Wireless Network Monitor\WMP54Gv4.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nTrayFw.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Program Files\Analog Devices\Core\smax4pnp.exe
C:\Program Files\Analog Devices\SoundMAX\Smax4.exe
C:\WINDOWS\System32\alg.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\avp.exe
C:\Program Files\Logitech\SetPoint\SetPoint.exe
C:\Program Files\Common Files\Logitech\khalshared\KHALMNPR.EXE
C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
G:\Analyze.exe
C:\WINDOWS\system32\wbem\wmiprvse.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://windowsupdate.microsoft.com/
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Adobe Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Adobe PDF Conversion Toolbar Helper - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O4 - HKLM\..\Run: [nTrayFw] C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nTrayFw.exe
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [High Definition Audio Property Page Shortcut] HDAShCut.exe
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Program Files\Analog Devices\Core\smax4pnp.exe
O4 - HKLM\..\Run: [SoundMAX] "C:\Program Files\Analog Devices\SoundMAX\Smax4.exe" /tray
O4 - HKLM\..\Run: [Kernel and Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [AVP] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\avp.exe"
O4 - Global Startup: Logitech SetPoint.lnk = ?
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O8 - Extra context menu item: Convert link target to Adobe PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert link target to existing PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert selected links to Adobe PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert selected links to existing PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Convert selection to Adobe PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert selection to existing PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert to existing PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra button: Web Anti-Virus statistics - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\SCIEPlgn.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {0B79F48A-E8D6-11DB-9283-E25056D89593} (F-Secure Online Scanner 3.1) - http://support.f-secure.com/ols/fscax.cab
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/eng/partner/default/kavwebscan_unicode.cab
O16 - DPF: {215B8138-A3CF-44C5-803F-8226143CFC0A} (Trend Micro ActiveX Scan Agent 6.6) - http://housecall65.trendmicro.com/housecall/applet/html/native/x86/win32/activex/hcImpl.cab
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1175045598681
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} (McFreeScan Class) - http://download.mcafee.com/molbin/iss-loc/mcfscan/2,2,0,5125/mcfscan.cab
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft AB - C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exe
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: Kaspersky Anti-Virus 7.0 (AVP) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 7.0\avp.exe
O23 - Service: Diskeeper - Diskeeper Corporation - C:\Program Files\Diskeeper Corporation\Diskeeper\DkService.exe
O23 - Service: ForceWare Intelligent Application Manager (IAM) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcAppFlt.exe
O23 - Service: Forceware Web Interface (ForcewareWebInterface) - Apache Software Foundation - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: NMIndexingService - Unknown owner - C:\Program Files\Common Files\Ahead\Lib\NMIndexingService.exe (file missing)
O23 - Service: ForceWare IP service (nSvcIp) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
O23 - Service: ForceWare user log service (nSvcLog) - NVIDIA - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
O23 - Service: nTune Service (nTuneService) - NVIDIA - C:\Program Files\NVIDIA Corporation\nTune\nTuneService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: TuneUp WinStyler Theme Service (TUWinStylerThemeSvc) - TuneUp Software GmbH - C:\Program Files\TuneUp Utilities 2006\WinStylerThemeSvc.exe
O23 - Service: WMP54Gv4SVC - GEMTEKS - C:\Program Files\Linksys Wireless-G PCI Wireless Network Monitor\WLService.exe

--
End of file - 10334 bytes

Shaba

2007-09-28, 13:33

Hi

Then you're clean!

Now that you are clean, please follow these simple steps in order to keep your computer clean and secure:

You can remove all tools we used.

Disable and Enable System Restore. - If you are using Windows XP then you should disable and re-enable system restore to make sure there are no infected files found in a restore point.

You can find instructions on how to enable and re-enable system restore here:

Windows XP System Restore Guide (http://www.bleepingcomputer.com/forums/tutorial56.html)

Re-enable system restore with instructions from tutorial above

Make your Internet Explorer more secure - This can be done by following these simple instructions:
From within Internet Explorer click on the Tools menu and then click on Options.
Click once on the Security tab
Click once on the Internet icon so it becomes highlighted.
Click once on the Custom Level button.
Change the Download signed ActiveX controls to Prompt

Change the Download unsigned ActiveX controls to Disable

Change the Initialize and script ActiveX controls not marked as safe to Disable

Change the Installation of desktop items to Prompt

Change the Launching programs and files in an IFRAME to Prompt

Change the Navigate sub-frames across different domains to Prompt

When all these settings have been made, click on the OK button.

If it prompts you as to whether or not you want to save the settings, press the Yes button.
Next press the Apply button and then the OK to exit the Internet Properties page.
Use an AntiVirus Software - It is very important that your computer has an anti-virus software running on your machine. This alone can save you a lot of trouble with malware in the future.

See this link for a listing of some online & their stand-alone antivirus programs:

Virus, Spyware, and Malware Protection and Removal Resources (http://www.bleepingcomputer.com/forums/topic405.html)

Update your AntiVirus Software - It is imperitive that you update your Antivirus software at least once a week (Even more if you wish). If you do not update your antivirus software then it will not be able to catch any of the new variants that may come out.

Use a Firewall - I can not stress how important it is that you use a Firewall on your computer. Without a firewall your computer is succeptible to being hacked and taken over. I am very serious about this and see it happen almost every day with my clients. Simply using a Firewall in its default configuration can lower your risk greatly.

For a tutorial on Firewalls and a listing of some available ones see the link below:

Understanding and Using Firewalls (http://www.bleepingcomputer.com/tutorials/tutorial60.html)

Visit Microsoft's Windows Update Site Frequently - It is important that you visit http://www.windowsupdate.com (http://www.windowsupdate.com) regularly. This will ensure your computer has always the latest security updates available installed on your computer. If there are new updates to install, install them immediately, reboot your computer, and revisit the site until there are no more critical updates.

Install SpywareBlaster - SpywareBlaster will added a large list of programs and sites into your Internet Explorer settings that will protect you from running and downloading known malicious programs.

A tutorial on installing & using this product can be found here:

Using SpywareBlaster to protect your computer from Spyware and Malware (http://www.bleepingcomputer.com/tutorials/tutorial49.html)

Update all these programs regularly - Make sure you update all the programs I have listed regularly. Without regular updates you WILL NOT be protected when new malicious programs are released.
Follow this list and your potential for being infected again will reduce dramatically.

Here are some additional utilities that will enhance your safety

IE/Spyad (http://www.spywarewarrior.com/uiuc/resource.htm) <= IE/Spyad places over 4000 websites and domains in the IE Restricted list which will severely impair attempts to infect your system. It basically prevents any downloads (Cookies etc) from the sites listed, although you will still be able to connect to the sites.
MVPS Hosts file (http://mvps.org/winhelp2002/hosts.htm) <= The MVPS Hosts file replaces your current HOSTS file with one containing well know ad sites etc. Basically, this prevents your computer from connecting to those sites by redirecting them to 127.0.0.1 which is your local computer
Google Toolbar (http://toolbar.google.com/) <= Get the free google toolbar to help stop pop up windows.
Comodo BOCLEAN (http://www.comodo.com/boclean/boclean.html) <= Stop identity thieves from getting personal information. Instantly detects well over 1,000,000 unique, variant and repack malware in total. And it's free.
Winpatrol (http://www.winpatrol.com/) <= Download and install the free version of Winpatrol. a tutorial for this product is located here:
Using Winpatrol to protect your computer from malicious software (http://www.winpatrol.com/features.html)

Stand Up and Be Counted ---> Malware Complaints (http://www.malwarecomplaints.info/index.php) <--- where you can make difference!

The site offers people who have been (or are) victims of malware the opportunity to document their story and, in that way, launch a complaint against the malware and the makers of the malware.

Also, please read this great article by Tony Klein So How Did I Get Infected In First Place (http://castlecops.com/postlite7736-.html)

Happy surfing and stay clean!