Trojan-Dropper.Win32.Mudrop.as

Vintage86

Hello, kaspersky found that this morning and deleted it. I'm just wondering if there is anything it missed.

Logfile of HijackThis v1.99.1
Scan saved at 12:50:14 PM, on 5/26/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.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:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\CTHELPER.EXE
C:\WINDOWS\system32\CTXFIHLP.EXE
C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe
C:\Program Files\Common Files\Ahead\lib\NMBgMonitor.exe
C:\WINDOWS\SYSTEM32\CTXFISPI.EXE
C:\Documents and Settings\Owner\Local Settings\Temp\Rar$EX00.891\trayit!.exe
C:\WINDOWS\system32\bgsvcgen.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\oodag.exe
C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Documents and Settings\Owner\My Documents\FAH 1\F@H1\FAH504-Console.exe
C:\Documents and Settings\Owner\My Documents\FAH 1\F@H1\FahCore_78.exe
C:\Documents and Settings\Owner\My Documents\FAH 1\F@H2\FAH504-Console.exe
C:\Documents and Settings\Owner\My Documents\FAH 1\F@H2\FahCore_78.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\Owner\LOCALS~1\Temp\Rar$EX00.250\HijackThis.exe

O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RunDLL32.exe NvMCTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [KAVPersonal50] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kav.exe" /minimize
O4 - HKLM\..\Run: [RivaTunerStartupDaemon] "C:\Program Files\RivaTuner v2.01\RivaTuner.exe" /S
O4 - HKLM\..\Run: [CTHelper] CTHELPER.EXE
O4 - HKLM\..\Run: [CTxfiHlp] CTXFIHLP.EXE
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Common Files\Ahead\lib\NMBgMonitor.exe"
O4 - Startup: TrayIt!.lnk = C:\Documents and Settings\Owner\Local Settings\Temp\Rar$EX00.891\trayit!.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
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: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1176193434578
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: B's Recorder GOLD Library General Service (bgsvcgen) - B.H.A Corporation - C:\WINDOWS\system32\bgsvcgen.exe
O23 - Service: FAH1 - Unknown owner - C:\Program Files\FAH\FAH1\srvany.exe (file missing)
O23 - Service: FAH2 - Unknown owner - C:\Program Files\FAH\FAH2\srvany.exe (file missing)
O23 - Service: Kaspersky Anti-Virus Service (kavsvc) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kavsvc.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: O&O Defrag - O&O Software GmbH - C:\WINDOWS\system32\oodag.exe
O23 - Service: StarWind iSCSI Service (StarWindService) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe

Baabiouz

Hi!

Please visit Virustotal
* Click the Browse... button
* Navigate to the file C:\Program Files\FAH\FAH1\srvany.exe
* Click the Open button
* Click the Send button
* Copy and paste the results back here

****************

Looking over your log, it seems you don't have any evidence of a third party firewall.

As the term conveys, a firewall is an extra layer of security installed onto computers, which restricts access to systems from the outside world. Firewalls protect against hackers and malicious intruders. I want you to download a free firewall NOW from one of these excellent vendors:

1) ZoneAlarm
2) Agnitum
3) Sunbelt/Kerio
4) Comodo

If you are using the built-in Windows XP firewall, it is not recommended as it does not block outgoing connections. This means that any malware on your computer is free to "phone home" for more instructions. Simply put, Windows XP contains a mediocre firewall. This firewall is NO replacement for a dedicated software solution. Remember to use only one firewall at the same time.

*****************


Please do the following...

1. Download ATF (Atribune Temp File) Cleaner© by Atribune to your desktop.
This program is for XP and Windows 2000 only!

Double-click ATF Cleaner.exe to open it.

Under Main select the following:

• Windows Temp
• Current User Temp
• All Users Temp
• Temporary Internet Files
• Prefetch
• Java Cache

*The other boxes are optional*
Then click the Empty Selected button.

Click Exit on the Main menu to close the program.

Please download AVG Anti-Spyware to your Desktop or to your usual Download Folder.
http://www.ewido.net/en/download/

• Install AVG Anti-Spyware by double clicking the installer.
• Follow the prompts. Make sure that Launch AVG Anti-Spyware is checked.
• On the main screen under Your Computer's security.
  • Click on Change state next to Resident shield. It should now change to inactive.
  • Click on Change state next to Automatic updates. It should now change to inactive.
  • Next to Last Update, click on Update now. (You will need an active internet connection to perform this)
  • Wait until you see the Update succesfull message.
• Right-click the AVG Anti-Spyware Tray Icon and uncheck Start with Windows.
• Right-click the AVG Anti-Spyware Tray Icon and select Exit. Confirm by clicking Yes.

If you are having problems with the updater, you can use this link to manually update ewido.
AVG Anti-Spyware manual updates.
Download the Full database to your Desktop or to your usual Download Folder and install it by double clicking the file. Make sure that AVG Anti-Spyware is closed before installing the update.

Reboot your computer in Safe Mode.

• If the computer is running, shut down Windows, and then turn off the power.
• Wait 30 seconds, and then turn the computer on.
• Start tapping the F8 key. The Windows Advanced Options Menu appears. If you begin tapping the F8 key too soon, some computers display a "keyboard error" message. To resolve this, restart the computer and try again.
• Ensure that the Safe Mode option is selected.
• Press Enter. The computer then begins to start in Safe mode.
• Login on your usual account.

Once in Safe Mode:

Close ALL open Windows / Programs / Folders. Please start AVG Anti-Spyware and run a full scan.

• Click on Scanner on the toolbar.
• Click on the Settings tab.
  • Under How to act?
    • Click on Recommended Action and choose Quarantine from the popup menu.
  • Under How to scan?
    • All checkboxes should be ticked.
  • Under Possibly unwanted software:
    • All checkboxes should be ticked.
  • Under Reports:
    • Select Automatically generate report after every scan and uncheck Only if threats were found.
  • Under What to scan?
    • Select Scan every file.
• Click on the Scan tab.
• Click on Complete System Scan to start the scan process.
• Let the program scan the machine.
• When the scan has finished, follow the instructions below.
  IMPORTANT : Don't click on the "Save Scan Report" button before you did hit the "Apply all Actions" button.
  • Make sure that Set all elements to: shows Quarantine (1), if not click on the link and choose Quarantine from the popup menu. (2)
  • At the bottom of the window click on the Apply all Actions button. (3)
    
• When done, click the Save Scan Report button. (4)
  • Click the Save Report as button.
  • Save the report to your Desktop.
• Right-click the AVG Anti-Spyware Tray Icon and select Exit. Confirm by clicking Yes.

Reboot back into Normal Mode, and post a new HJT log, along with the AVG Anti-Spyware log.

Please, send Virustotal results, AVG Anti-Spyware log and a new HjT log.

Vintage86

Here's the log from VirusTotal

AhnLab-V32007.5.24.005.25.2007 no virus found
AntiVir7.4.0.2705.25.2007no virus found
Authentium4.93.805.23.2007no virus found
Avast4.7.997.005.26.2007no virus found
AVG7.5.0.46705.26.2007no virus found
BitDefender7.205.27.2007no virus found
CAT-QuickHeal9.0005.26.2007no virus found
ClamAVdevel-2007041605.26.2007no virus found
DrWeb4.3305.26.2007no virus found
eSafe7.0.15.005.24.2007no virus found
eTrust-Vet30.7.366505.26.2007no virus found
Ewido4.005.26.2007no virus found
FileAdvisor105.27.2007No threat detected
Fortinet2.85.0.005.26.2007no virus found
F-Prot4.3.2.4805.25.2007no virus found
F-Secure6.70.13030.005.25.2007no virus found
IkarusT3.1.1.805.26.2007no virus found
Kaspersky4.0.2.2405.27.2007no virus found
McAfee503905.25.2007no virus found
Microsoft1.250305.26.2007no virus found
NOD32v2229205.25.2007no virus found
Norman5.80.0205.25.2007no virus found
Panda9.0.0.405.26.2007no virus found

Additional Information:
File size: 8464 bytesMD5: fa2bc77a36fb0b0f596d0627ca6a7274SHA1: 3eae0f83be51ec6b0cc635f2a4526a3faf7c883bBit9 info: http://fileadvisor.bit9.com/services/extinfo.aspx?md5=fa2bc77a36fb0b0f596d0627ca6a7274

Vintage86

---

AVG Anti-Spyware - Scan Report

---

+ Created at: 8:32:58 PM 5/26/2007

+ Scan result:



E:\Backup\Ahead Nero 7 Premium Multilang with KeyGen CD Version by Verdigo DCP.rar/Nero7\Nero7Keygen.exe -> Backdoor.Hupigon : Cleaned with backup (quarantined).
E:\Backup\Ahead Nero 7 Premium Multilang with KeyGen CD Version by Verdigo DCP.rar/Nero7\Nero7Keygen.zip/Nero7Keygen.exe -> Backdoor.Hupigon : Cleaned with backup (quarantined).
E:\Backup\Nero7\Nero7Keygen.exe -> Backdoor.Hupigon : Cleaned with backup (quarantined).
E:\Backup\Nero7\Nero7Keygen.zip/Nero7Keygen.exe -> Backdoor.Hupigon : Cleaned with backup (quarantined).
E:\System Volume Information\_restore{E7B779F4-D2D0-4B59-A1B9-44319DDF956A}\RP51\A0112589.exe -> Backdoor.Hupigon : Cleaned with backup (quarantined).
E:\System Volume Information\_restore{E7B779F4-D2D0-4B59-A1B9-44319DDF956A}\RP54\A0121381.exe -> Backdoor.Hupigon : Cleaned with backup (quarantined).
E:\System Volume Information\_restore{E7B779F4-D2D0-4B59-A1B9-44319DDF956A}\RP56\A0145143.exe -> Backdoor.Hupigon : Cleaned with backup (quarantined).
C:\Program Files\FAH\URL2FILE.EXE -> Not-A-Virus.Downloader.Win32.Url2File.a : Cleaned with backup (quarantined).
C:\System Volume Information\_restore{E7B779F4-D2D0-4B59-A1B9-44319DDF956A}\RP51\A0103192.EXE -> Not-A-Virus.Downloader.Win32.Url2File.a : Cleaned with backup (quarantined).
C:\System Volume Information\_restore{E7B779F4-D2D0-4B59-A1B9-44319DDF956A}\RP54\A0126307.EXE -> Not-A-Virus.Downloader.Win32.Url2File.a : Cleaned with backup (quarantined).
C:\System Volume Information\_restore{E7B779F4-D2D0-4B59-A1B9-44319DDF956A}\RP55\A0132152.EXE -> Not-A-Virus.Downloader.Win32.Url2File.a : Cleaned with backup (quarantined).
C:\System Volume Information\_restore{E7B779F4-D2D0-4B59-A1B9-44319DDF956A}\RP56\A0135551.EXE -> Not-A-Virus.Downloader.Win32.Url2File.a : Cleaned with backup (quarantined).
C:\System Volume Information\_restore{E7B779F4-D2D0-4B59-A1B9-44319DDF956A}\RP56\A0151016.EXE -> Not-A-Virus.Downloader.Win32.Url2File.a : Cleaned with backup (quarantined).
E:\Backup\Utilities\Half Open Patch.zip/EvID4226Patch.exe -> Not-A-Virus.Hacktool.EvID : Cleaned with backup (quarantined).


::Report end

Vintage86

Logfile of HijackThis v1.99.1
Scan saved at 8:54:09 PM, on 5/26/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.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:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\CTHELPER.EXE
C:\WINDOWS\system32\CTXFIHLP.EXE
C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\Common Files\Ahead\lib\NMBgMonitor.exe
C:\Documents and Settings\Owner\Local Settings\Temp\Rar$EX00.891\trayit!.exe
C:\WINDOWS\SYSTEM32\CTXFISPI.EXE
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\WINDOWS\system32\bgsvcgen.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\oodag.exe
C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
C:\PROGRA~1\MOZILL~1\FIREFOX.EXE
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Trillian\trillian.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\Owner\LOCALS~1\Temp\Rar$EX00.516\HijackThis.exe

O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RunDLL32.exe NvMCTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [KAVPersonal50] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kav.exe" /minimize
O4 - HKLM\..\Run: [RivaTunerStartupDaemon] "C:\Program Files\RivaTuner v2.01\RivaTuner.exe" /S
O4 - HKLM\..\Run: [CTHelper] CTHELPER.EXE
O4 - HKLM\..\Run: [CTxfiHlp] CTXFIHLP.EXE
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Common Files\Ahead\lib\NMBgMonitor.exe"
O4 - Startup: TrayIt!.lnk = C:\Documents and Settings\Owner\Local Settings\Temp\Rar$EX00.891\trayit!.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
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: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1176193434578
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: AVG Anti-Spyware Guard - Anti-Malware Development a.s. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: B's Recorder GOLD Library General Service (bgsvcgen) - B.H.A Corporation - C:\WINDOWS\system32\bgsvcgen.exe
O23 - Service: FAH1 - Unknown owner - C:\Program Files\FAH\FAH1\srvany.exe (file missing)
O23 - Service: FAH2 - Unknown owner - C:\Program Files\FAH\FAH2\srvany.exe (file missing)
O23 - Service: Kaspersky Anti-Virus Service (kavsvc) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kavsvc.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: O&O Defrag - O&O Software GmbH - C:\WINDOWS\system32\oodag.exe
O23 - Service: StarWind iSCSI Service (StarWindService) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe

Baabiouz

Your logs looks ok.

Do you have problems?

Vintage86

I'm not noticing any problems at the moment, but anyways thanks for your help, it was much appreciated.

Baabiouz

Ok. Glad to hear that you don't have any problems.

Log looks clean...great job!

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

1. Disable and Enable System Restore. - If you are using Windows ME or XP then you should disable and reenable system restore to make sure there are no infected files found in a restore point.
   
   You can find instructions on how to enable and reenable system restore here:
   
   Managing Windows Millenium System Restore
   
   or
   
   Windows XP System Restore Guide
   
   Renable system restore with instructions from tutorial above
   
   
2. Make your Internet Explorer more secure - This can be done by following these simple instructions:
   1. From within Internet Explorer click on the Tools menu and then click on Options.
   2. Click once on the Security tab
   3. Click once on the Internet icon so it becomes highlighted.
   4. Click once on the Custom Level button.
      1. Change the Download signed ActiveX controls to Prompt
         
      2. Change the Download unsigned ActiveX controls to Disable
         
      3. Change the Initialize and script ActiveX controls not marked as safe to Disable
         
      4. Change the Installation of desktop items to Prompt
         
      5. Change the Launching programs and files in an IFRAME to Prompt
         
      6. Change the Navigate sub-frames across different domains to Prompt
         
      7. When all these settings have been made, click on the OK button.
         
      8. If it prompts you as to whether or not you want to save the settings, press the Yes button.
   5. Next press the Apply button and then the OK to exit the Internet Properties page.
3. 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
   
   
4. 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.
   
   
5. 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
   
   
6. Visit Microsoft's Windows Update Site Frequently - It is important that you visit 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.
   
   
7. Install Spybot - Search and Destroy - Install and download Spybot - Search and Destroy with its TeaTimer option. This will provide realtime spyware & hijacker protection on your computer alongside your virus protection. You should also scan your computer with program on a regular basis just as you would an antivirus software.
   
   A tutorial on installing & using this product can be found here:
   
   Using Spybot - Search & Destroy to remove Spyware , Malware, and Hijackers
   
   
8. Install Ad-Aware - Install and download Ad-Aware. ou should also scan your computer with program on a regular basis just as you would an antivirus software in conjunction with Spybot.
   
   A tutorial on installing & using this product can be found here:
   
   Using Ad-aware to remove Spyware, Malware, & Hijackers from Your Computer
   
   
9. 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
   
   
10. 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.

Glad I was able to help.