combofix did delete several bad things.

You have remnents of symantec on your system and should be removed since you are useing Avast, so run the symantec uninstaller and if everything is still good then we can mark this as resolved.

Download and run the Norton Removal Tool

So far, so good.

I ran the Symantec/Norton Removal Tool.

Avast is still installed. Also re-installed Spybot S&D and Ad-Aware.


Latest HiJackThis log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 6:04:17 PM, on 8/14/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16876)
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:\Program Files\Ahead\InCD\InCDsrv.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Cisco\Cisco AnyConnect VPN Client\vpnagent.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Lavasoft\Ad-Aware\AAWService.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\WINDOWS\system32\VTTimer.exe
C:\WINDOWS\system32\VTtrayp.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\ScanSoft\OmniPageSE\opware32.exe
C:\Program Files\Ahead\InCD\InCD.exe
C:\Program Files\Lexmark 7600 Series\lxdwmon.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Lexmark 7600 Series\lxdwMsdMon.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe
C:\Program Files\Lavasoft\Ad-Aware\AAWTray.exe
C:\Program Files\DNA\btdna.exe
C:\WINDOWS\system32\lxdwcoms.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\MsPMSPSv.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Microsoft Office\OFFICE11\OUTLOOK.EXE
C:\Program Files\Microsoft Office\OFFICE11\WINWORD.EXE
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = MSN.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = Bing
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = Bing
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = Yahoo!
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = *.local
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Lexmark Printable Web - {D2C5E510-BE6D-42CC-9F61-E4F939078474} - C:\Program Files\Lexmark Printable Web\bho.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [VTTimer] VTTimer.exe
O4 - HKLM\..\Run: [VTTrayp] VTtrayp.exe
O4 - HKLM\..\Run: [Omnipage] C:\Program Files\ScanSoft\OmniPageSE\opware32.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [InCD] C:\Program Files\Ahead\InCD\InCD.exe
O4 - HKLM\..\Run: [Sprint SmartView] "C:\Program Files\Sprint\Sprint SmartView\SprintSV.exe" -a
O4 - HKLM\..\Run: [lxdwmon.exe] "C:\Program Files\Lexmark 7600 Series\lxdwmon.exe"
O4 - HKLM\..\Run: [lxdwamon] "C:\Program Files\Lexmark 7600 Series\lxdwamon.exe"
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [DXM6Patch_981116] C:\WINDOWS\p_981116.exe /Q:A
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Ad-Watch] C:\Program Files\Lavasoft\Ad-Aware\AAWTray.exe
O4 - HKCU\..\Run: [OM2_Monitor] "C:\Program Files\OLYMPUS\OLYMPUS Master 2\MMonitor.exe" -NoStart
O4 - HKCU\..\Run: [BitTorrent DNA] "C:\Program Files\DNA\btdna.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.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) - {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: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://gfx1.hotmail.com/mail/w3/pr01...s/MSNPUpld.cab
O16 - DPF: {528C14CD-CF9E-489C-A365-5999F17B69B9} (LightSurfUploadCtl Class) - http://pictures.sprintpcs.com/active...oadControl.cab
O16 - DPF: {55963676-2F5E-4BAF-AC28-CF26AA587566} (Cisco AnyConnect VPN Client Web Control) - https://remote.cmh.edu/CACHE/stc/1/binaries/vpnweb.cab
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: InCD Helper (InCDsrv) - Ahead Software AG - C:\Program Files\Ahead\InCD\InCDsrv.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: Lavasoft Ad-Aware Service - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\AAWService.exe
O23 - Service: lxdwCATSCustConnectService - Lexmark International, Inc. - C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\\lxdwse rv.exe
O23 - Service: lxdw_device - - C:\WINDOWS\system32\lxdwcoms.exe
O23 - Service: Sprint RcAppSvc (SprintRcAppSvc) - PCTEL - C:\Program Files\Sprint\Sprint SmartView\RcAppSvc.exe
O23 - Service: Cisco AnyConnect VPN Agent (vpnagent) - Cisco Systems, Inc. - C:\Program Files\Cisco\Cisco AnyConnect VPN Client\vpnagent.exe

--
End of file - 8277 bytes


Latest Uninstall list:

Acrobat.com
Ad-Aware
Ad-Aware
Adobe AIR
Adobe AIR
Adobe Flash Player 10 ActiveX
Adobe Reader 9.1.3
Adobe Shockwave Player 11.5
Ahead InCD EasyWrite Reader
Amazon MP3 Downloader 1.0.3
Apple Mobile Device Support
Apple Software Update
ArcSoft PhotoBase 3
ArcSoft PhotoStudio 5
Audacity 1.2.6
avast! Antivirus
Bonjour
Bullzip PDF Printer 5.0.0.609
Cakewalk Pyro Trial 1.5
CanoScan LiDE20,30 Manual
Cisco AnyConnect VPN Client
C-Media WDM Audio Driver
Critical Update for Windows Media Player 11 (KB959772)
Express Burn
FileZilla Client 3.1.2
Golden Records
GPL Ghostscript Lite 8.61
Great Adventures by Fisher-Price: Castle
HijackThis 2.0.2
Hotfix for Windows Media Format 11 SDK (KB929399)
Hotfix for Windows Media Player 11 (KB939683)
Hotfix for Windows XP (KB952287)
Hoyle Mahjong Tiles
IBM & Crayola First Ladies
ImTOO MOV Converter
InCD
Intel(R) 536EP Modem
iTunes
J2SE Runtime Environment 5.0 Update 13
Java(TM) 6 Update 15
Java(TM) 6 Update 5
Java(TM) 6 Update 7
Lexmark 7600 Series
Lexmark Printable Web
Malwarebytes' Anti-Malware
Microsoft .NET Framework 1.1
Microsoft .NET Framework 1.1
Microsoft .NET Framework 1.1 Hotfix (KB928366)
Microsoft .NET Framework 2.0
Microsoft Compression Client Pack 1.0 for Windows XP
Microsoft Internationalized Domain Names Mitigation APIs
Microsoft National Language Support Downlevel APIs
Microsoft Office Standard Edition 2003
Microsoft User-Mode Driver Framework Feature Pack 1.0
Microsoft Visual C++ 2005 Redistributable
Microsoft Visual C++ 2005 Redistributable
Microsoft Windows Journal Viewer
MixPad
Motorola ic502 USB - Handset Manager V9.2
Motorola RAZR V3m(Sprint PCS) USB - Handset Manager V9.5
MSXML 4.0 SP2 (KB936181)
MSXML 4.0 SP2 (KB954430)
MSXML 4.0 SP2 Parser and SDK
MSXML 6.0 Parser (KB933579)
My Disney Kitchen
NCH Toolbox
Nero OEM
NeroMediaPlayer
NeroVision Express
OLYMPUS Master 2
OmniPage SE
Pdf995 (installed by TaxCut)
PdfEdit995 (installed by TaxCut)
PolderbitS Sound Recorder and Editor
QuickTime
RealPlayer
RIP Vinyl Demo
S3 S3Chromo
S3 S3Config3D
S3 S3Display
S3 S3Gamma2
S3 S3Info2
S3 S3Overlay
S3 S3RefreshLock
S3 S3TrayPlus
Security Update for Microsoft .NET Framework 2.0 (KB928365)
Security Update for Step By Step Interactive Training (KB923723)
Security Update for Windows Internet Explorer 7 (KB938127-v2)
Security Update for Windows Internet Explorer 7 (KB950759)
Security Update for Windows Internet Explorer 7 (KB953838)
Security Update for Windows Internet Explorer 7 (KB956390)
Security Update for Windows Internet Explorer 7 (KB958215)
Security Update for Windows Internet Explorer 7 (KB960714)
Security Update for Windows Internet Explorer 7 (KB961260)
Security Update for Windows Internet Explorer 7 (KB963027)
Security Update for Windows Internet Explorer 7 (KB969897)
Security Update for Windows Internet Explorer 7 (KB972260)
Security Update for Windows Media Player (KB952069)
Security Update for Windows Media Player (KB973540)
Security Update for Windows Media Player 11 (KB936782)
Security Update for Windows Media Player 11 (KB954154)
Security Update for Windows XP (KB923561)
Security Update for Windows XP (KB938464)
Security Update for Windows XP (KB941569)
Security Update for Windows XP (KB946648)
Security Update for Windows XP (KB950759)
Security Update for Windows XP (KB950760)
Security Update for Windows XP (KB950762)
Security Update for Windows XP (KB950974)
Security Update for Windows XP (KB951066)
Security Update for Windows XP (KB951376-v2)
Security Update for Windows XP (KB951698)
Security Update for Windows XP (KB951748)
Security Update for Windows XP (KB952004)
Security Update for Windows XP (KB952954)
Security Update for Windows XP (KB953839)
Security Update for Windows XP (KB954211)
Security Update for Windows XP (KB954459)
Security Update for Windows XP (KB954600)
Security Update for Windows XP (KB955069)
Security Update for Windows XP (KB956391)
Security Update for Windows XP (KB956572)
Security Update for Windows XP (KB956744)
Security Update for Windows XP (KB956802)
Security Update for Windows XP (KB956803)
Security Update for Windows XP (KB956841)
Security Update for Windows XP (KB957095)
Security Update for Windows XP (KB957097)
Security Update for Windows XP (KB958644)
Security Update for Windows XP (KB958687)
Security Update for Windows XP (KB958690)
Security Update for Windows XP (KB959426)
Security Update for Windows XP (KB960225)
Security Update for Windows XP (KB960715)
Security Update for Windows XP (KB960803)
Security Update for Windows XP (KB960859)
Security Update for Windows XP (KB961371)
Security Update for Windows XP (KB961373)
Security Update for Windows XP (KB961501)
Security Update for Windows XP (KB968537)
Security Update for Windows XP (KB969898)
Security Update for Windows XP (KB970238)
Security Update for Windows XP (KB971557)
Security Update for Windows XP (KB971633)
Security Update for Windows XP (KB971657)
Security Update for Windows XP (KB973346)
Security Update for Windows XP (KB973354)
Security Update for Windows XP (KB973507)
Security Update for Windows XP (KB973869)
SiteUnseen
Slice Uninstall
Sony Sound Forge Audio Studio 9.0
Spelling Dictionaries Support For Adobe Reader 8
Sprint SmartView
Spybot - Search & Destroy
Switch Sound File Converter
TaxCut Minnesota 2008
TaxCut Premium + State + Efile 2008
Update for Windows XP (KB942763)
Update for Windows XP (KB951072-v2)
Update for Windows XP (KB951978)
Update for Windows XP (KB955839)
Update for Windows XP (KB967715)
Update for Windows XP (KB973815)
Visual C++ 2008 x86 Runtime - (v9.0.30729)
Visual C++ 2008 x86 Runtime - v9.0.30729.01
WavePad Sound Editor
Windows Internet Explorer 7
Windows Media Format 11 runtime
Windows Media Format 11 runtime
Windows Media Player 11
Windows Media Player 11
Windows XP Service Pack 3
WinRAR archiver
WinZip

Great news, you should uninstall all older java updates as they can be exploited by malware.

If you don't have a firewall, you should. Windows firewall just doesn't do it in XP.

Free Firewalls:

Best Free Firewall

Good luck and safe surfing.