My pc is infected with a Generic Backdoor trojan. I've copied the main.txt below, but no extra.txt file was generated (I've tried a couple times).

Any help you can offer is profoundly appreciated.
Deckard's System Scanner v20070809.63
Run by Owner on 2007-08-11 at 13:44:16
Computer is in Normal Mode.
--------------------------------------------------------------------------------
-- HijackThis (run as Owner.exe) -----------------------------------------------
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 1:45:52 PM, on 8/11/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Microsoft Hardware\Mouse\point32.exe
C:\windows\system\hpsysdrv.exe
C:\Program Files\Common Files\McAfee\HackerWatch\HWAPI.exe
C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
c:\program files\common files\mcafee\mna\mcnasvc.exe
C:\PROGRA~1\McAfee\VIRUSS~1\mcods.exe
C:\PROGRA~1\McAfee\MSC\mcpromgr.exe
c:\PROGRA~1\COMMON~1\mcafee\mcproxy\mcproxy.exe
c:\PROGRA~1\COMMON~1\mcafee\redirsvc\redirsvc.exe
C:\PROGRA~1\McAfee\VIRUSS~1\mcshield.exe
C:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
C:\Program Files\McAfee\MPF\MPFSrv.exe
c:\PROGRA~1\mcafee.com\agent\mcagent.exe
C:\PROGRA~1\McAfee\MPS\mps.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\McAfee\MPS\mpsevh.exe
C:\Documents and Settings\Owner\Local Settings\Temporary Internet Files\Content.IE5\7BL3F5SS\dss[1].exe
C:\DOCUME~1\Owner\LOCALS~1\TEMPOR~1\Content.IE5\7BL3F5SS\Owner.exe
R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL =
http://www.gophersearch.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar =
http://www.gophersearch.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page =
http://www.gophersearch.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = :0
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - Default URLSearchHook is missing
F2 - REG:system.ini: UserInit=userinit.exe
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: scriptproxy - {7DB2D5A0-7241-4E79-B68D-6309F01C5231} - c:\program files\mcafee\virusscan\scriptcl.dll
O2 - BHO: (no name) - {8DA5457F-A8AA-4CCF-A842-70E6FD274094} - C:\PROGRA~1\COMMON~1\WinTools\WToolsT.dll (file missing)
O4 - HKLM\..\Run: [v72O39P] sndav.exe
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [PS2] C:\WINDOWS\system32\ps2.exe
O4 - HKLM\..\Run: [POINTER] point32.exe
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [Install.exe] C:\WINDOWS\svchost.exe
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [hpsysdrv] c:\windows\system\hpsysdrv.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKCU\..\Run: [ewtERVjsg] ir3iscon.exe
O4 - HKCU\..\Run: [180ClientStubInstall] "C:\WINDOWS\stubinstaller5356.exe"
O4 - .DEFAULT User Startup: AutoPlay.exe (User 'Default user')
O4 - Global Startup: hp center.lnk = C:\Program Files\hp center\137903\Program\BackWeb-137903.exe
O4 - Global Startup: updater.lnk = C:\Program Files\Common Files\updater\wupdater.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MI1933~1\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MI1933~1\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
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
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) -
http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {42F2C9BA-614F-47C0-B3E3-ECFD34EED658} -
http://www.ysbweb.com/ist/softwares/...sb_1002952.cab
O16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} -
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) -
http://acs.pandasoftware.com/actives...ree/asinst.cab
O16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389} -
http://download.mcafee.com/molbin/sh...26/mcgdmgr.cab
O16 - DPF: {EF99BD32-C1FB-11D2-892F-0090271D4F88} -
http://us.dl1.yimg.com/download.yaho...bio5_0_2_1.cab
O20 - AppInit_DLLs: C:\WINDOWS\system32\perfc000.dat
O23 - Service: McAfee E-mail Proxy (Emproxy) - McAfee, Inc. - C:\PROGRA~1\COMMON~1\McAfee\EmProxy\emproxy.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iPodService - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: McAfee HackerWatch Service - McAfee, Inc. - C:\Program Files\Common Files\McAfee\HackerWatch\HWAPI.exe
O23 - Service: McAfee Update Manager (mcmispupdmgr) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcupdmgr.exe
O23 - Service: McAfee Services (mcmscsvc) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
O23 - Service: McAfee Network Agent (McNASvc) - McAfee, Inc. - c:\program files\common files\mcafee\mna\mcnasvc.exe
O23 - Service: McAfee Scanner (McODS) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcods.exe
O23 - Service: McAfee Protection Manager (mcpromgr) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcpromgr.exe
O23 - Service: McAfee Proxy Service (McProxy) - McAfee, Inc. - c:\PROGRA~1\COMMON~1\mcafee\mcproxy\mcproxy.exe
O23 - Service: McAfee Redirector Service (McRedirector) - McAfee, Inc. - c:\PROGRA~1\COMMON~1\mcafee\redirsvc\redirsvc.exe
O23 - Service: McAfee Real-time Scanner (McShield) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcshield.exe
O23 - Service: McAfee SystemGuards (McSysmon) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
O23 - Service: McAfee Personal Firewall Service (MpfService) - McAfee, Inc. - C:\Program Files\McAfee\MPF\MPFSrv.exe
O23 - Service: McAfee Privacy Service (MPS9) - McAfee, Inc. - C:\PROGRA~1\McAfee\MPS\mps.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
--
End of file - 6814 bytes
-- Files created between 2007-07-11 and 2007-08-11 -----------------------------
2007-08-11 12:21:26 0 d-------- C:\Program Files\Trend Micro
2007-08-11 12:19:06 0 d-------- C:\!KillBox
2007-08-11 11:20:59 21312 --a------ C:\WINDOWS\choice.exe
2007-08-11 11:16:03 0 d-------- C:\ie-spyad
2007-08-11 11:11:28 0 d-------- C:\Program Files\SpywareBlaster
2007-08-11 07:24:59 0 d-------- C:\WINDOWS\system32\ActiveScan
2007-08-06 18:34:40 0 d--h----- C:\Documents and Settings\Administrator\Templates
2007-08-06 18:34:40 0 dr------- C:\Documents and Settings\Administrator\Start Menu
2007-08-06 18:34:40 0 dr-h----- C:\Documents and Settings\Administrator\SendTo
2007-08-06 18:34:40 0 dr-h----- C:\Documents and Settings\Administrator\Recent
2007-08-06 18:34:40 0 d--h----- C:\Documents and Settings\Administrator\PrintHood
2007-08-06 18:34:40 0 d--h----- C:\Documents and Settings\Administrator\NetHood
2007-08-06 18:34:40 0 dr------- C:\Documents and Settings\Administrator\My Documents
2007-08-06 18:34:40 0 d--h----- C:\Documents and Settings\Administrator\Local Settings
2007-08-06 18:34:40 0 dr------- C:\Documents and Settings\Administrator\Favorites
2007-08-06 18:34:40 0 d-------- C:\Documents and Settings\Administrator\Desktop
2007-08-06 18:34:40 0 d---s---- C:\Documents and Settings\Administrator\Cookies
2007-08-06 18:34:40 0 dr-h----- C:\Documents and Settings\Administrator\Application Data
2007-08-06 18:34:40 0 d---s---- C:\Documents and Settings\Administrator\Application Data\Microsoft
2007-08-06 18:34:40 0 d-------- C:\Documents and Settings\Administrator\Application Data\InterTrust
2007-08-06 18:34:40 0 d-------- C:\Documents and Settings\Administrator\Application Data\Identities
2007-08-06 18:34:40 0 d-------- C:\Documents and Settings\Administrator\Application Data\Adobe
2007-08-06 18:34:39 0 d-------- C:\Documents and Settings\Administrator\WINDOWS
2007-08-06 18:34:39 786432 --ah----- C:\Documents and Settings\Administrator\NTUSER.DAT
2007-08-05 08:05:31 143360 --a------ C:\WINDOWS\system32\dunzip32.dll <Not Verified; Inner Media, Inc.; DynaZIP-32 Multi-Threading UnZIP DLL>
2007-08-05 07:59:31 0 d-------- C:\Program Files\McAfee.com
2007-08-05 07:59:20 0 d-------- C:\Program Files\Common Files\McAfee
2007-08-05 07:59:03 0 d-------- C:\Program Files\McAfee
2007-08-05 07:50:06 0 d-------- C:\Documents and Settings\All Users\Application Data\McAfee
2007-08-03 16:22:53 0 d-------- C:\WINDOWS\pss
-- Find3M Report ---------------------------------------------------------------
2007-08-11 10:17:25 0 d-------- C:\Program Files\QuickTime
2007-08-05 07:59:20 0 d-a------ C:\Program Files\Common Files
-- Registry Dump ---------------------------------------------------------------
*Note* empty entries & legit default entries are not shown
[HKEY_LOCAL_MACHINE\~\Browser Helper Objects\{8DA5457F-A8AA-4CCF-A842-70E6FD274094}]
C:\PROGRA~1\COMMON~1\WinTools\WToolsT.dll
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"v72O39P"="sndav.exe" []
"Recguard"="C:\WINDOWS\SMINST\RECGUARD.EXE" [06/15/2001 06:34 PM]
"QuickTime Task"="C:\Program Files\QuickTime\qttask.exe" [04/12/2005 12:32 PM]
"PS2"="C:\WINDOWS\system32\ps2.exe" []
"POINTER"="point32.exe" []
"nwiz"="nwiz.exe" [07/28/2003 03:19 PM C:\WINDOWS\SYSTEM32\nwiz.exe]
"NvCplDaemon"="C:\WINDOWS\system32\NvCpl.dll" [07/28/2003 03:19 PM]
"Install.exe"="C:\WINDOWS\svchost.exe" []
"IgfxTray"="C:\WINDOWS\System32\igfxtray.exe" [08/07/2001 08:25 PM]
"hpsysdrv"="c:\windows\system\hpsysdrv.exe" [05/07/1998 12:04 PM]
"HotKeysCmds"="C:\WINDOWS\System32\hkcmd.exe" [08/07/2001 07:36 PM]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"ewtERVjsg"="ir3iscon.exe" []
"180ClientStubInstall"="C:\WINDOWS\stubinstaller5356.exe" []
[HKEY_CURRENT_USER\software\microsoft\windows\currentversion\policies\system]
"disableregistrytools"=0 (0x0)
"disabletaskmgr"=0 (0x0)
[HKEY_LOCAL_MACHINE\software\microsoft\windows nt\currentversion\windows]
"appinit_dlls"=C:\WINDOWS\system32\perfc000.dat
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\MCODS]
@=""
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\vds]
@="Service"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\{533C5B84-EC70-11D2-9505-00C04F79DEAF}]
@="Volume shadow copy"
-- End of Deckard's System Scanner: finished at 2007-08-11 at 13:46:27 ---------