A specific google problem with all browsers "The connection was reset"

At running HijackThis, it threw me an error saying that "For some reason your system denied write access to the Hosts file. If any hijacked domains are in this file, HjackThis may NOT be able to fix this". It let's me continue from there so, here is the log file from running HijackThis:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:46:46, on 27.9.2009
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v8.00 (8.00.6001.18813)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskeng.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Windows\RtHDVCpl.exe
C:\Program Files\Intel\Intel Matrix Storage Manager\IAAnotif.exe
C:\Program Files\Launch Manager\QtZgAcer.EXE
C:\Program Files\Acer Arcade Deluxe\Play Movie\PMVService.exe
C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
C:\Program Files\AVG\AVG8\avgtray.exe
C:\Windows\System32\rundll32.exe
C:\Program Files\PowerISO\PWRISOVM.EXE
C:\Windows\System32\rundll32.exe
C:\Program Files\TweakNow PowerPack 2009\CDAuto.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Users\Ramin\AppData\Local\Temp\RtkBtMnt.exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\Logitech\SetPoint\SetPoint.exe
C:\Program Files\Microsoft Office\Office12\ONENOTEM.EXE
C:\Program Files\Common Files\Logishrd\KHAL2\KHALMNPR.EXE
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Windows\system32\conime.exe
C:\Program Files\Fraps\fraps.exe
C:\Windows\explorer.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\PROGRA~1\Java\jre6\bin\jp2launcher.exe
C:\Program Files\Java\jre6\bin\java.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

And the second part:

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://fi.intl.acer.yahoo.com
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
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://fi.intl.acer.yahoo.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O1 - Hosts: ::1 localhost
O1 - Hosts: 74.125.45.100 4-open-davinci.com
O1 - Hosts: 74.125.45.100 securitysoftwarepayments.com
O1 - Hosts: 74.125.45.100 privatesecuredpayments.com
O1 - Hosts: 74.125.45.100 secure.privatesecuredpayments.com
O1 - Hosts: 74.125.45.100 getantivirusplusnow.com
O1 - Hosts: 74.125.45.100 secure-plus-payments.com
O1 - Hosts: 74.125.45.100 www.getantivirusplusnow.com
O1 - Hosts: 74.125.45.100 www.secure-plus-payments.com
O1 - Hosts: 74.125.45.100 www.getavplusnow.com
O1 - Hosts: 74.125.45.100 www.securesoftwarebill.com
O1 - Hosts: 74.125.45.100 secure.paysecuresystem.com
O1 - Hosts: 74.125.45.100 paysoftbillsolution.com
O1 - Hosts: ::1 localhost
O1 - Hosts: 74.125.45.100 4-open-davinci.com
O1 - Hosts: 74.125.45.100 securitysoftwarepayments.com
O1 - Hosts: 74.125.45.100 privatesecuredpayments.com
O1 - Hosts: 74.125.45.100 secure.privatesecuredpayments.com
O1 - Hosts: 74.125.45.100 getantivirusplusnow.com
O1 - Hosts: 74.125.45.100 secure-plus-payments.com
O1 - Hosts: 74.125.45.100 www.getantivirusplusnow.com
O1 - Hosts: 74.125.45.100 www.secure-plus-payments.com
O1 - Hosts: 74.125.45.100 www.getavplusnow.com
O1 - Hosts: 74.125.45.100 www.securesoftwarebill.com
O1 - Hosts: 74.125.45.100 secure.paysecuresystem.com
O1 - Hosts: 74.125.45.100 paysoftbillsolution.com
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Winamp Toolbar Loader - {25CEE8EC-5730-41bc-8B58-22DDC8AB8C20} - C:\Program Files\Winamp Toolbar\winamptb.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Windows Live ID Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\5.1.1309.3572\swg.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: Acer eDataSecurity Management - {5CBE3B7C-1E47-477e-A7DD-396DB0476E29} - C:\Windows\system32\eDStoolbar.dll
O3 - Toolbar: Winamp Toolbar - {EBF2BA02-9094-4c5a-858B-BB198F3D8DE2} - C:\Program Files\Winamp Toolbar\winamptb.dll
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [RtHDVCpl] RtHDVCpl.exe
O4 - HKLM\..\Run: [PLFSet] rundll32.exe C:\Windows\PLFSet.dll,PLFDefSetting
O4 - HKLM\..\Run: [IAAnotif] C:\Program Files\Intel\Intel Matrix Storage Manager\iaanotif.exe
O4 - HKLM\..\Run: [LManager] C:\PROGRA~1\LAUNCH~1\QtZgAcer.EXE
O4 - HKLM\..\Run: [PlayMovie] "C:\Program Files\Acer Arcade Deluxe\Play Movie\PMVService.exe"
O4 - HKLM\..\Run: [WarReg_PopUp] C:\Acer\WR_PopUp\WarReg_PopUp.exe
O4 - HKLM\..\Run: [Symantec PIF AlertEng] "C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe" /a /m "C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\AlertEng.dll"
O4 - HKLM\..\Run: [Kernel and Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [AVG8_TRAY] C:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKLM\..\Run: [NvSvc] RUNDLL32.EXE C:\Windows\system32\nvsvc.dll,nvsvcStart
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [PWRISOVM.EXE] C:\Program Files\PowerISO\PWRISOVM.EXE
O4 - HKLM\..\Run: [CD Autorun] C:\Program Files\TweakNow PowerPack 2009\CDAuto.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [ISUSPM Startup] C:\PROGRA~1\COMMON~1\INSTAL~1\UPDATE~1\ISUSPM.exe -startup
O4 - HKCU\..\Run: [EA Core] "C:\Program Files\Electronic Arts\EADM\Core.exe" -silent
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [Google Update] "C:\Users\Ramin\AppData\Local\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User '?')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User '?')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User '?')
O4 - HKUS\S-1-5-21-405891301-2258504642-1215864348-1000\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun (User '?')
O4 - HKUS\S-1-5-21-405891301-2258504642-1215864348-1000\..\Run: [Google Update] "C:\Users\Ramin\AppData\Local\Google\Update\GoogleUpdate.exe" /c (User '?')
O4 - HKUS\S-1-5-21-405891301-2258504642-1215864348-1000\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe (User '?')
O4 - HKUS\S-1-5-18\..\Run: [Acer Tour Reminder] C:\Acer\AcerTour\Reminder.exe (User '?')
O4 - HKUS\.DEFAULT\..\Run: [Acer Tour Reminder] C:\Acer\AcerTour\Reminder.exe (User 'Default user')
O4 - S-1-5-21-405891301-2258504642-1215864348-1000 Startup: OneNote 2007 -näyttöleikkeet ja Launcher.lnk = C:\Program Files\Microsoft Office\Office12\ONENOTEM.EXE (User '?')
O4 - S-1-5-21-405891301-2258504642-1215864348-1000 Startup: Ubisoft register.lnk = C:\Program Files\Ubisoft\Register\schedule.exe (User '?')
O4 - Startup: OneNote 2007 -näyttöleikkeet ja Launcher.lnk = C:\Program Files\Microsoft Office\Office12\ONENOTEM.EXE
O4 - Startup: Ubisoft register.lnk = C:\Program Files\Ubisoft\Register\schedule.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Logitech SetPoint.lnk = C:\Program Files\Logitech\SetPoint\SetPoint.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: &Winamp Search - C:\ProgramData\Winamp Toolbar\ieToolbar\resources\en-US\local\search.html
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\Windows\system32\GPhotos.scr/200
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: V&ie Microsoft Exceliin - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: Blog This - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Blog This in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Lähetä OneNoteen - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: Läh&etä OneNoteen - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL

And the third:


O13 - Gopher Prefix:
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG8\avgpp.dll
O20 - AppInit_DLLs: avgrsstx.dll
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: Automatic LiveUpdate Scheduler - Symantec Corporation - C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: AVG8 E-mail Scanner (avg8emc) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgemc.exe
O23 - Service: AVG8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: AVG8 Firewall (avgfws8) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgfws8.exe
O23 - Service: Symantec Lic NetConnect service (CLTNetCnService) - Unknown owner - C:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe (file missing)
O23 - Service: eDataSecurity Service - HiTRSUT - C:\Acer\Empowering Technology\eDataSecurity\eDSService.exe
O23 - Service: eLock Service (eLockService) - Acer Inc. - C:\Acer\Empowering Technology\eLock\Service\eLockServ.exe
O23 - Service: eNet Service - Acer Inc. - C:\Acer\Empowering Technology\eNet\eNet Service.exe
O23 - Service: eRecovery Service (eRecoveryService) - Acer Inc. - C:\Acer\Empowering Technology\eRecovery\eRecoveryService.exe
O23 - Service: eSettings Service (eSettingsService) - Unknown owner - C:\Acer\Empowering Technology\eSettings\Service\capuserv.exe
O23 - Service: Intel® PROSet/Wireless Event Log (EvtEng) - Intel(R) Corporation - C:\Program Files\Intel\WiFi\bin\EvtEng.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Intel(R) Matrix Storage Event Monitor (IAANTMON) - Intel Corporation - C:\Program Files\Intel\Intel Matrix Storage Manager\IAANTMon.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Logitech Bluetooth Service (LBTServ) - Logitech, Inc. - C:\Program Files\Common Files\Logishrd\Bluetooth\LBTServ.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Common Files\LightScribe\LSSrvc.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: LiveUpdate Notice Service Ex (LiveUpdate Notice Ex) - Unknown owner - C:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe (file missing)
O23 - Service: LiveUpdate Notice Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
O23 - Service: MobilityService - Unknown owner - C:\Acer\Mobility Center\MobilityService.exe
O23 - Service: PnkBstrA - Unknown owner - C:\Windows\system32\PnkBstrA.exe
O23 - Service: Intel® PROSet/Wireless Registry Service (RegSrvc) - Intel(R) Corporation - C:\Program Files\Common Files\Intel\WirelessCommon\RegSrvc.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Program Files\CyberLink\Shared Files\RichVideo.exe
O23 - Service: ePower Service (WMIService) - acer - C:\Acer\Empowering Technology\ePower\ePowerSvc.exe
O23 - Service: XAudioService - Conexant Systems, Inc. - C:\Windows\system32\DRIVERS\xaudio.exe

--
End of file - 13117 bytes

You will need for someone to help you with a full malware cleaning: I can't do it now.

See http://www.bleepingcomputer.com/virus-removal/remove-windows-additional-guard

Yes, about two weeks ago I got Windows System Suite on this same computer. I got rid of it by the Malwarebytes' Anti-Malware program. Maybe it left behind some traces?

New thread (http://www.techspot.com/vb/topic135406.html) was started for same problem. Please keep thread together here.