I cleared the cookies and temporary Internet files, and I made sure "third party browser extensions" is unchecked in Advanced Options in the browser, but none of that had any effect. I've also had McAfee turned on all this time, and I did a full scan with it, not just on the hard drive, but on my external HD and flash drive, which I use with this computer, too. No change.
I sure hope someone can help. I'm posting my Hijackthis log below.
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 18:26, on 2009-02-03
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\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
c:\PROGRA~1\COMMON~1\mcafee\mna\mcnasvc.exe
c:\PROGRA~1\COMMON~1\mcafee\mcproxy\mcproxy.exe
C:\PROGRA~1\McAfee\VIRUSS~1\mcshield.exe
C:\Program Files\McAfee\MPF\MPFSrv.exe
C:\WINDOWS\system32\svchost.exe
c:\PROGRA~1\mcafee.com\agent\mcagent.exe
C:\Program Files\Intel\Modem Event Monitor\IntelMEM.exe
C:\Program Files\Creative\Shared Files\CAMTRAY.EXE
C:\WINDOWS\system32\hkcmd.exe
C:\PROGRA~1\PESTPA~1\PPMemCheck.exe
C:\PROGRA~1\PESTPA~1\CookiePatrol.exe
C:\PROGRA~1\PESTPA~1\PPControl.exe
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\SmartDisk\FlashPath\sdstat.exe
C:\Program Files\Sony\Sony Picture Utility\VolumeWatcher\SPUVolumeWatcher.exe
C:\WINDOWS\system32\wuauclt.exe
C:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
c:\PROGRA~1\mcafee\msc\mcuimgr.exe
C:\Program Files\internet explorer\iexplore.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Adobe\Photoshop 7.0\Photoshop.exe
C:\WINDOWS\SYSTEM32\WINMINE.EXE
C:\Program Files\internet explorer\iexplore.exe
C:\Program Files\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
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: scriptproxy - {7DB2D5A0-7241-4E79-B68D-6309F01C5231} - C:\Program Files\McAfee\VirusScan\scriptsn.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: NetXfer - {C16CBAAC-A75C-4DB5-A0DD-CDF5CAFCDD3A} - C:\Program Files\Xi\NetXfer\NXToolBar.dll (file missing)
O4 - HKLM\..\Run: [IntelMeM] C:\Program Files\Intel\Modem Event Monitor\IntelMEM.exe
O4 - HKLM\..\Run: [Creative WebCam Tray] C:\Program Files\Creative\Shared Files\CAMTRAY.EXE
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [PPMemCheck] c:\PROGRA~1\PESTPA~1\PPMemCheck.exe
O4 - HKLM\..\Run: [CookiePatrol] c:\PROGRA~1\PESTPA~1\CookiePatrol.exe
O4 - HKLM\..\Run: [mcagent_exe] C:\Program Files\McAfee.com\Agent\mcagent.exe /runkey
O4 - HKLM\..\Run: [PestPatrol Control Center] c:\PROGRA~1\PESTPA~1\PPControl.exe
O4 - HKLM\..\Run: [autochk] rundll32.exe C:\WINDOWS\system32\autochk.dll,_IWMPEvents@16
O4 - HKCU\..\Run: [autochk] rundll32.exe C:\DOCUME~1\NETWOR~1\protect.dll,_IWMPEvents@16
O4 - Startup: ChkDisk.dll
O4 - Startup: ChkDisk.lnk = ?
O4 - Startup: Introducing Media Manager.lnk = C:\Program Files\Common Files\Microsoft Shared\Media Manager\SPLASHA.EXE
O4 - Startup: Picture Motion Browser Media Check Tool.lnk = C:\Program Files\Sony\Sony Picture Utility\VolumeWatcher\SPUVolumeWatcher.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: FlashPath Monitor.lnk = C:\Program Files\SmartDisk\FlashPath\sdstat.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: Download all by NetXfer - C:\Program Files\Xi\NetXfer\NXAddList.html
O8 - Extra context menu item: Download by NetXfer - C:\Program Files\Xi\NetXfer\NXAddLink.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~4\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Yahoo! &SMS - file:///C:\Program Files\Yahoo!\Common/ycsms.htm
O12 - Plugin for .wmv: C:\Program Files\Netscape\Communicator\Program\PLUGINS\npdsplay.dll
O16 - DPF: {0441781A-3075-4C8F-9FDB-A6BCAE8769A1} (vmLaunch Class) - http://downloads.comcast.net/videomail/vmLauncher.cab
O16 - DPF: {0713E8D2-850A-101B-AFC0-4210102A8DA7} (Microsoft ProgressBar Control, version 5.0 (SP2)) - http://download.mcafee.com/molbin/Share ... mCtl32.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} -
O16 - DPF: {87587503-20F0-4FF5-8DA3-0107C4C03FDC} (vmLaunch Class) - http://downloads.comcast.net/videomail/vmLauncher.cab
O16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389} - http://download.mcafee.com/molbin/share ... cgdmgr.cab
O18 - Protocol: ebk - {1E411CE8-FE8B-4973-B8E0-6EA2CC3C6B06} - C:\WINDOWS\system32\ebkp.dll (file missing)
O23 - Service: McAfee Application Installer Cleanup (0135981232946127) (0135981232946127mcinstcleanup) - Unknown owner - C:\DOCUME~1\jeffrey\LOCALS~1\Temp\013598~1.EXE (file missing)
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: McAfee Services (mcmscsvc) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
O23 - Service: McAfee Network Agent (McNASvc) - McAfee, Inc. - c:\PROGRA~1\COMMON~1\mcafee\mna\mcnasvc.exe
O23 - Service: McAfee Scanner (McODS) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcods.exe
O23 - Service: McAfee Proxy Service (McProxy) - McAfee, Inc. - c:\PROGRA~1\COMMON~1\mcafee\mcproxy\mcproxy.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: Sony SPTI Service (SPTISRV) - Sony Corporation - C:\PROGRA~1\COMMON~1\SONYSH~1\AVLib\Sptisrv.exe
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End of file - 7097 bytes