salve.
sono nuova del forum.
il mio pc fisso,sistema operativo windows xp,mi sta dando qlke problema,tra cui,qndo,facendo ricerca su google,clicco sul risultato,mi indirizza nn sulla pagian desiderata ma su altri siti rilevati da avast antivirus come malevoli..ma dà anche altri problemi

cercando su internet ho trovato Hijackthis,ho fatto la scansione.
potreste dare un'occhiata,voi che siete esperti,al file di log? non vorrei eliminare componenti importanti dato che sono profana dell'argomento.

grazie 1000 x l'attenzione.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 15.24.19, on 25/10/2010
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.17091)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Alwil Software\Avast5\AvastSvc.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\TortoiseSVN\bin\TSVNCache.exe
C:\Programmi\Java\jre6\bin\jusched.exe
C:\WINDOWS\vsnp2uvc.exe
C:\Programmi\Alwil Software\Avast5\avastUI.exe
C:\WINDOWS\ATKKBService.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\Programmi\Windows Live\Messenger\msnmsgr.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATIEGE.EXE
C:\Programmi\Olympus\ib\olycamdetect.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\Programmi\Microsoft\Search Enhancement Pack\SeaPort\SeaPort.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Programmi\Windows Live\Contacts\wlcomm.exe
C:\Programmi\Mozilla Firefox\plugin-container.exe
C:\Programmi\Loaris\Trojan Remover\ltr.exe
C:\WINDOWS\system32\NOTEPAD.EXE
C:\Programmi\Trend Micro\HijackThis\HijackThis.exe

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
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.bigseekpro.com/webscout/{C80AEB70-8069-491A-B2CA-B0C12733C249}
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: Messenger Plus Live Toolbar - {9b339f6e-ddcd-401b-8764-230adbd01761} - C:\Programmi\Messenger_Plus_Live\tbMes1.dll
R3 - URLSearchHook: Messenger Plus Live Italy Toolbar - {08d495ab-a86c-47b0-82ef-da87bf92f730} - C:\Programmi\Messenger_Plus_Live_Italy\tbMes1.dll
R3 - URLSearchHook: ToolbarURLSearchHook Class - {CA3EB689-8F09-4026-AA10-B9534C691CE0} - C:\Programmi\WebScout Toolbar\tbhelper.dll
O1 - Hosts: 91.192.210.36 L2authd.lineage2.com
O1 - Hosts: 91.192.210.36 L2testauthd.lineage2.com
O1 - Hosts: 216.107.250.194 nprotect.lineage2.com
O2 - BHO: Supporto di collegamento per Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Messenger Plus Live Italy Toolbar - {08d495ab-a86c-47b0-82ef-da87bf92f730} - C:\Programmi\Messenger_Plus_Live_Italy\tbMes1.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Search Helper - {6EBF7485-159F-4bff-A14F-B9E3AAC4465B} - C:\Programmi\Microsoft\Search Enhancement Pack\Search Helper\SEPsearchhelperie.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre6\bin\ssv.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Messenger Plus Live Toolbar - {9b339f6e-ddcd-401b-8764-230adbd01761} - C:\Programmi\Messenger_Plus_Live\tbMes1.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: Windows Live Toolbar Helper - {E15A8DC0-8516-42A1-81EA-DC94EC1ACF10} - C:\Programmi\Windows Live\Toolbar\wltcore.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O2 - BHO: EpsonToolBandKicker Class - {E99421FB-68DD-40F0-B4AC-B7027CAE2F1A} - C:\Programmi\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O2 - BHO: SMTTB2009 - {FCBCCB87-9224-4B8D-B117-F56D924BEB18} - C:\Programmi\WebScout Toolbar\tbcore3.dll (file missing)
O3 - Toolbar: EPSON Web-To-Page - {EE5D279F-081B-4404-994D-C6B60AAEBA6D} - C:\Programmi\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: &Windows Live Toolbar - {21FA44EF-376D-4D53-9B0F-8A89D3229068} - C:\Programmi\Windows Live\Toolbar\wltcore.dll
O3 - Toolbar: Messenger Plus Live Toolbar - {9b339f6e-ddcd-401b-8764-230adbd01761} - C:\Programmi\Messenger_Plus_Live\tbMes1.dll
O3 - Toolbar: Messenger Plus Live Italy Toolbar - {08d495ab-a86c-47b0-82ef-da87bf92f730} - C:\Programmi\Messenger_Plus_Live_Italy\tbMes1.dll
O3 - Toolbar: WebScout Toolbar - {338B4DFE-2E2C-4338-9E41-E176D497299E} - C:\Programmi\WebScout Toolbar\tbcore3.dll (file missing)
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [ATICCC] "C:\Programmi\ATI Technologies\ATI.ACE\cli.exe" runtime -Delay
O4 - HKLM\..\Run: [snp2uvc] C:\WINDOWS\vsnp2uvc.exe
O4 - HKLM\..\Run: [muBlinder] C:\Documents and Settings\utente\Documenti\MuBlinder\muBlinder.exe -startup
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Programmi\File comuni\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [MDS_Menu] "C:\Programmi\Olympus\ib\MUITransfer\MUIStartMenu.exe" "C:\Programmi\Olympus\ib" UpdateWithCreateOnce "Software\OLYMPUS\ib\1.0"
O4 - HKLM\..\Run: [avast5] "C:\Programmi\Alwil Software\Avast5\avastUI.exe" /nogui
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [EPSON Stylus SX400 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATIEGE.EXE /FU "C:\DOCUME~1\utente\IMPOST~1\Temp\E_SC.tmp" /EF "HKCU"
O4 - HKCU\..\Run: [Olympus ib] "C:\Programmi\Olympus\ib\olycamdetect.exe" /Startup
O4 - HKCU\..\Run: [{3E5D9DAD-F096-4EAE-7C0E-E97C578F9CEC}] "C:\Documents and Settings\utente\Dati applicazioni\Aluwxu\xorao.exe"
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-19\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'SERVIZIO LOCALE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SERVIZIO DI RETE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Inserisci blog - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: Inserisci &blog in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.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:\Programmi\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Programmi\Messenger\msmsgs.exe
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {20A60F0D-9AFA-4515-A0FD-83BD84642501} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab56986.cab
O16 - DPF: {5D6F45B3-9043-443D-A792-115447494D24} (UnoCtrl Class) - http://messenger.zone.msn.com/IT-IT/a-UNO1/GAME_UNO1.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O21 - SSODL: printers - {425C6D03-24F5-4577-B81B-CA8D2AC92519} - libwinets.dll (file missing)
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATK Keyboard Service (ATKKeyboardService) - ASUSTeK COMPUTER INC. - C:\WINDOWS\ATKKBService.exe
O23 - Service: avast! Antivirus - AVAST Software - C:\Programmi\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: avast! Mail Scanner - AVAST Software - C:\Programmi\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: avast! Web Scanner - AVAST Software - C:\Programmi\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - Google Inc. - C:\Programmi\Google\Update\GoogleUpdate.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: ServiceLayer - Nokia. - C:\Programmi\PC Connectivity Solution\ServiceLayer.exe

--
End of file - 9269 bytes

Ciao, intanto un saluto e benvenuta nel forum.
Fixa a rimuovi queste voci:

R3 - URLSearchHook: ToolbarURLSearchHook Class - {CA3EB689-8F09-4026-AA10-B9534C691CE0} - C:\Programmi\WebScout Toolbar\tbhelper.dll
O2 - BHO: SMTTB2009 - {FCBCCB87-9224-4B8D-B117-F56D924BEB18} - C:\Programmi\WebScout Toolbar\tbcore3.dll (file missing)
O3 - Toolbar: WebScout Toolbar - {338B4DFE-2E2C-4338-9E41-E176D497299E} - C:\Programmi\WebScout Toolbar\tbcore3.dll (file missing)
O4 - HKUS\S-1-5-19\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'SERVIZIO LOCALE')- hai avast questa non serve

Se non sai fixare leggi la scheda di alfonso QUI.

Scarica Malwarebytes da QUI, lo devi aggiornare e poi fai una scansione COMPLETA, non rapida ed elimina tutto quello che trova, posta il log.

Poi fai una pulizia con Ccleaner compreso il registro, se non lo conosci lo trovi su aiutamici sezione software.

Poi vai in Start/cerca e digita %temp% e poi elimina tutti i file temp che trova.

Poi vai in C:\ Windows e cerca la cartella Prefetch, la apri e cancella tutto il contenuto.
Fai sapere come va il pc.

Per ora sembra tutto a posto, stai attento quando visiti certi siti, controlla che siano sicuri, tieni sempre pulito
il PC, usa spesso Ccleaner e tieni deframmentato il disco fisso.
Se il pc funziona bene, ti consiglio di fare copia di riserva del Sistema, così in caso di gravi problemi, ripristini l'immagine fatta e in pochi minuti, senza bisogno di formattare, ritorna tutto a posto.
QUI trovi la guida completa coi relativi programmi, fatta da alfonso.
Ciao