Hi,
I'm definitely having some serious malware issues. My computer will lock up a lot, causing me to reboot, it is also running extremely sluggish. I've run some online scanners, BitDefender, McAfee stinger, but my regular McAfee antivirus picks up something called "Junk-NavQuar" , that it cannot remove. That might be at the root of my problem, but I believe there might be other malware issues lurking in my computer. Here's my HijackThis log, and thanks in advance for all your help:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 11:18:44 PM, on 12/9/2007
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\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\Windows Defender\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\WINDOWS\System32\CTsvcCDA.exe
C:\Program Files\Executive Software\Diskeeper Home Edition\DKService.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\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:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Common Files\Panda Software\PavShld\pavprsrv.exe
C:\Program Files\Spyware Doctor\sdhelp.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\svchost.exe
c:\PROGRA~1\mcafee.com\agent\mcagent.exe
C:\WINDOWS\System32\MsPMSPSv.exe
E:\Program Files\Invisible Browsing\InvisibleBrowsing.exe
E:\Program Files\eFax Messenger 4.3\J2GDllCmd.exe
C:\Program Files\Spyware Doctor\swdoctor.exe
C:\WINDOWS\system32\ctfmon.exe
E:\Program Files\BitTorrent\bittorrent.exe
C:\WINDOWS\System32\alg.exe
C:\PROGRA~1\mcafee\VIRUSS~1\mcvsshld.exe
C:\WINDOWS\system32\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\Explorer.EXE
c:\PROGRA~1\mcafee.com\agent\mcagent.exe
E:\Program Files\Invisible Browsing\InvisibleBrowsing.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BackWeb-8876480.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\system32\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\Explorer.EXE
c:\PROGRA~1\mcafee.com\agent\mcagent.exe
E:\Program Files\Invisible Browsing\InvisibleBrowsing.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BackWeb-8876480.exe
C:\WINDOWS\system32\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\Explorer.EXE
c:\PROGRA~1\mcafee.com\agent\mcagent.exe
E:\Program Files\Invisible Browsing\InvisibleBrowsing.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BackWeb-8876480.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\WINDOWS\System32\wbem\wmiprvse.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.comcast.net/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.att.net
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/customize/…rch/search.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://red.clientapps.yahoo.com/customize/…://my.yahoo.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\WINDOWS\SYSTEM\blank.htm
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 127.0.0.1:80
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = local
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: PCTools Site Guard - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - C:\PROGRA~1\SPYWAR~1\tools\iesdsg.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_08\bin\ssv.dll
O2 - BHO: scriptproxy - {7DB2D5A0-7241-4E79-B68D-6309F01C5231} - c:\PROGRA~1\mcafee\VIRUSS~1\scriptcl.dll
O2 - BHO: PCTools Browser Monitor - {B56A7D7D-6927-48C8-A975-17DF180C71AC} - C:\PROGRA~1\SPYWAR~1\tools\iesdpb.dll
O3 - Toolbar: Easy-WebPrint - {327C2873-E90D-4c37-AA9D-10AC9BABA46C} - C:\Program Files\Canon\Easy-WebPrint\Toolband.dll
O3 - Toolbar: &Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn0\ycomp5_3_12_0.dll
O3 - Toolbar: AOL Toolbar - {DE9C389F-3316-41A7-809B-AA305ED9D922} - C:\Program Files\AOL\AOL Toolbar 3.1\aoltb.dll
O4 - HKLM\..\Run: [InvisibleBrowsing] E:\Program Files\Invisible Browsing\InvisibleBrowsing.exe
O4 - HKLM\..\Run: [eFax 4.3] "E:\Program Files\eFax Messenger 4.3\J2GDllCmd.exe" /R
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKCU\..\Run: [Spyware Doctor] "C:\Program Files\Spyware Doctor\swdoctor.exe" /Q
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [BitTorrent] "E:\Program Files\BitTorrent\bittorrent.exe" –force_start_minimized
O4 - HKUS\S-1-5-21-1229272821-162531612-725345543-1005\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe (User 'Diane')
O4 - HKUS\S-1-5-21-1229272821-162531612-725345543-1005\..\Run: [LDM] C:\Program Files\Logitech\Desktop Messenger\8876480\Program\BackWeb-8876480.exe (User 'Diane')
O4 - HKUS\S-1-5-21-1229272821-162531612-725345543-1007\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe (User 'Jonathan')
O4 - HKUS\S-1-5-21-1229272821-162531612-725345543-1008\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe (User 'Michael')
O4 - HKUS\S-1-5-18\..\Run: [Spyware Doctor] "C:\Program Files\Spyware Doctor\swdoctor.exe" /Q (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [Spyware Doctor] "C:\Program Files\Spyware Doctor\swdoctor.exe" /Q (User 'Default user')
O4 - S-1-5-21-1229272821-162531612-725345543-1007 Startup: LimeWire On Startup.lnk = C:\Program Files\LimeWire\LimeWire.exe (User 'Jonathan')
O4 - S-1-5-21-1229272821-162531612-725345543-1007 User Startup: LimeWire On Startup.lnk = C:\Program Files\LimeWire\LimeWire.exe (User 'Jonathan')
O8 - Extra context menu item: &AOL Toolbar Search - c:\program files\aol\aol toolbar 3.1\resources\en-US\local\search.html
O8 - Extra context menu item: Download &all with DAP - C:\PROGRA~1\DAP\dapextie2.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra button: Spyware Doctor - {2D663D1A-8670-49D9-A1A5-4C56B4E14E84} - C:\PROGRA~1\SPYWAR~1\tools\iesdpb.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exe
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
O14 - IERESET.INF: START_PAGE_URL=http://www.att.net
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resources/scan8/oscan8.cab
O16 - DPF: {9600F64D-755F-11D4-A47F-0001023E6D5A} (Shutterfly Picture Upload Plugin) - http://web1.shutterfly.com/downloads/Uploader.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O23 - Service: Apple Mobile Device - Apple, Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: BHPAFCY - Unknown owner - C:\DOCUME~1\SCOTTS~1\LOCALS~1\Temp\BHPAFCY.exe (file missing)
O23 - Service: BYCEJCZYSNPJGV - Unknown owner - C:\DOCUME~1\SCOTTS~1\LOCALS~1\Temp\BYCEJCZYSNPJGV.exe (file missing)
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\System32\CTsvcCDA.exe
O23 - Service: Diskeeper - Executive Software International, Inc. - C:\Program Files\Executive Software\Diskeeper Home Edition\DKService.exe
O23 - Service: EKKTDFGAVSLP - Unknown owner - C:\DOCUME~1\SCOTTS~1\LOCALS~1\Temp\EKKTDFGAVSLP.exe (file missing)
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: iPod Service - Apple Inc. - D:\Program Files\iPod\bin\iPodService.exe
O23 - Service: ITSBEI - Unknown owner - C:\DOCUME~1\SCOTTS~1\LOCALS~1\Temp\ITSBEI.exe (file missing)
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 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: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Panda Process Protection Service (PavPrSrv) - Panda Software - C:\Program Files\Common Files\Panda Software\PavShld\pavprsrv.exe
O23 - Service: QM - Unknown owner - C:\DOCUME~1\SCOTTS~1\LOCALS~1\Temp\QM.exe (file missing)
O23 - Service: Sandra Data Service (SandraDataSrv) - SiSoftware - E:\Program Files\SiSoftware\SiSoftware Sandra Professional 2005.SR2a\RpcDataSrv.exe
O23 - Service: Sandra Service (SandraTheSrv) - SiSoftware - E:\Program Files\SiSoftware\SiSoftware Sandra Professional 2005.SR2a\RpcSandraSrv.exe
O23 - Service: PC Tools Spyware Doctor (SDhelper) - PC Tools Research Pty Ltd - C:\Program Files\Spyware Doctor\sdhelp.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\SYSTEM32\ZONELABS\vsmon.exe
O24 - Desktop Component 1: Ocean Aquarium Deluxe v1.0 Active Desktop - (no file)

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