Running Windows XP SP3 with all updates applied. Installed Malwarebytes 1.36 anti-malware software with updates and Avira 9.0.0.394 Anti-virus software with updates to remove the WinPC trojan. After much effort, I was able to get the software installed and the trojan removed with the execption of uacinit.dll. Malwarebytes reports the file but I cannot find the file on the hard drive. I've turn off 'Hide System Files' and 'Hide Protected Files' and still cannot find the file. Malwarebytes reports the file in C:\Windows\System32\. I installed HiJackThis to create the logs requested for examination. Here are the results from the scans:

Malwarebytes' Anti-Malware 1.36
Database version: 2139
Windows 5.1.2600 Service Pack 3

5/16/2009 12:51:34 AM
mbam-log-2009-05-16 (00-51-22).txt

Scan type: Quick Scan
Objects scanned: 98622
Time elapsed: 8 minute(s), 50 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 1

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\WINDOWS\system32\uacinit.dll (Trojan.Agent) -> No action taken.

________________________________________________________________________________
______________________________________

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:52:21 AM, on 5/16/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

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:\Program Files\Avira\AntiVir Desktop\sched.exe
C:\Program Files\Avira\AntiVir Desktop\avguard.exe
c:\progra~1\emdeon~1\clinic~1\webmdc~4.exe
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe
C:\WINDOWS\twain_32\fjscan32\FJTWMKSV.exe
C:\Intergy\Installer.exe
C:\Program Files\LogMeIn\x86\RaMaint.exe
C:\Program Files\LogMeIn\x86\LogMeIn.exe
C:\Program Files\LogMeIn\x86\LMIGuardian.exe
C:\Program Files\Malwarebytes' Anti-Malware\mbamservice.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\rmss\WIN_MONITOR.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\rmss\win_server.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Castelle\FaxPress\FaxTray.Exe
C:\WINDOWS\Twain_32\Fjscan32\SOP\FtLnSOP.exe
C:\WINDOWS\Twain_32\fjscan32\FjtwMkup.exe
C:\WINDOWS\Twain_32\Fjscan32\FTPWREVT\FTPWREVT.exe
C:\Program Files\LogMeIn\x86\LogMeInSystray.exe
C:\Program Files\Malwarebytes' Anti-Malware\mbamgui.exe
C:\Program Files\Avira\AntiVir Desktop\avgnt.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\LogMeIn\x86\LMIGuardian.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
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
O4 - HKLM\..\Run: [CstlFaxTray] "C:\Program Files\Castelle\FaxPress\FaxTray.Exe" /s
O4 - HKLM\..\Run: [FtLnSOP_setup] C:\WINDOWS\Twain_32\Fjscan32\SOP\FtLnSOP.exe
O4 - HKLM\..\Run: [FJTWAIN Setup] C:\WINDOWS\Twain_32\fjscan32\FjtwMkup.exe /Station
O4 - HKLM\..\Run: [FTPWRENV] C:\WINDOWS\Twain_32\Fjscan32\FTPWREVT\FTPWREVT.exe
O4 - HKLM\..\Run: [LogMeIn GUI] "C:\Program Files\LogMeIn\x86\LogMeInSystray.exe"
O4 - HKLM\..\Run: [Malwarebytes' Anti-Malware] "C:\Program Files\Malwarebytes' Anti-Malware\mbamgui.exe" /starttray
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\RunOnce: [Malwarebytes Anti-Malware (reboot)] "C:\Program Files\Malwarebytes' Anti-Malware\iexplore.exe.exe" /runcleanupscript
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [AVScan] C:\Documents and Settings\user.INTERGY\Application Data\winav.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.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
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = intergy.local
O17 - HKLM\Software\..\Telephony: DomainName = intergy.local
O17 - HKLM\System\CCS\Services\Tcpip\..\{492D3431-4021-409A-981E-2D1DA87C1C32}: NameServer = 208.67.222.222,208.67.220.220
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = intergy.local
O17 - HKLM\System\CS3\Services\Tcpip\Parameters: Domain = intergy.local
O23 - Service: Avira AntiVir Scheduler (AntiVirSchedulerService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira AntiVir Guard (AntiVirService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Clinical Auto-Updater (ClinicalAutoUpdater) - - c:\progra~1\emdeon~1\clinic~1\webmdc~4.exe
O23 - Service: FJTWMKSV - PFU LIMITED - C:\WINDOWS\twain_32\fjscan32\FJTWMKSV.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: Intergy Installer - Unknown owner - C:\Intergy\Installer.exe
O23 - Service: LogMeIn Maintenance Service (LMIMaint) - LogMeIn, Inc. - C:\Program Files\LogMeIn\x86\RaMaint.exe
O23 - Service: LogMeIn - LogMeIn, Inc. - C:\Program Files\LogMeIn\x86\LogMeIn.exe
O23 - Service: MBAMService - Malwarebytes Corporation - C:\Program Files\Malwarebytes' Anti-Malware\mbamservice.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: Remote Monitoring - Unknown owner - C:\Program Files\rmss\WIN_MONITOR.exe

--
End of file - 5484 bytes

Any and all help will be greatly appreciated.
Thank you.

**Update**
Used ComboFix mentioned in the forum and determined my system had a rootkit trojan. Was able to remove rootkit and subsequent scans finally cleared out the final remnants of the malware.

It would appear this trojan is a new variant designed to thwart MalwareBytes software. I had to rename the software to install the program. To run MalwareBytes, I had to open the program as soon as Windows would allow me to double-click on the icon otherwise the program failed to launch.

Thanks to all who post on this forum as the information provided allowed me to fix my system. Reloading Windows would have been a nightmare since this is a heavily configured system.

Sorry for the delay. If you still require assistance please post and let us know and we'll help you out.

Thanks

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