I've GOT a hijacker that redirects me away from Google or Yahoo search results and blocks me from accessing many antivirus and antispyware sites. It won't let me run Spybot, SuperAntiSpyware or Malwarebytes AntiMalware, or update AVG. I've been updating AVG manually by downloading the definitions file, and it reports an Adware.SecondThought infection but seems unable to get rid of it.

Here's my HJT log. I can't upgrade to the latest VERSION, the installer just won't run.

Quote

Logfile of HijackThis v1.98.2
Scan saved at 10:17:59 AM, on 1/24/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16762)

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:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Microsoft IntelliPoint\point32.exe
C:\Program Files\Napster\napster.exe
C:\PROGRA~1\AVG\AVG8\avgtray.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\PROGRA~1\VCOM\SYSTEM~1\MXTask.exe
C:\WINDOWS\system32\MsPMSPSv.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\PROGRA~1\VCOM\SYSTEM~1\mxtask.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\AVG\AVG8\avgui.exe
C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
C:\PROGRA~1\AVG\AVG8\avgrsx.exe
C:\Program Files\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.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: [RCScheduleCheck] C:\Program Files\VCOM\Recovery Commander\RCSCHED.EXE -CHECK
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [RoxioEngineUtility] "C:\Program Files\Common Files\Roxio Shared\System\EngUtil.exe"
O4 - HKLM\..\Run: [MaxtorOneTouch] C:\PROGRA~1\Maxtor\OneTouch\Utils\OneTouch.exe
O4 - HKLM\..\Run: [IntelliPoint] "C:\Program Files\Microsoft IntelliPoint\point32.exe"
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [NapsterShell] C:\Program Files\Napster\napster.exe /systray
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKLM\..\Run: [AppleSyncNotifier] C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleSyncNotifier.exe
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context MENU ITEM: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
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
O15 - Trusted Zone: www.jeepsunlimited.com
O15 - Trusted Zone: http://my.monster.com
O15 - Trusted Zone: http://www.monster.com
O15 - Trusted Zone: http://www.musicianalliance.com
O15 - Trusted Zone: http://forum.neow.net
O15 - Trusted Zone: http://forum.newjo.org
O15 - Trusted Zone: http://forums.tomcoyote.org
O16 - DPF: {3BA494B1-D507-4C11-9BDA-D47E1A65DFCF} (Confidence Online for Web Applications) - https://us.dbrasweb.db.com/llclient/dbrasweb/winxp/,DanaInfo=rctoolbox2.us.db.com+AXXPEE.dll
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} -
O16 - DPF: {E5F5D008-DD2C-4D32-977D-1A0ADF03058B} (JuniperSetupSP1 Control) - https://us.dbrasweb.db.com/dana-cached/setup/JuniperSetupSP1.cab
O16 - DPF: {E9A7F56F-C40F-4928-8C6F-7A72F2A25222} -
O16 - DPF: {FE0BD779-44EE-4A4B-AA2E-743C63F2E5E6} -
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG8\avgpp.dll