Salve, installando un programma free che mi serviva, senza volerlo mi si sono installate queste due toolbar (Babylon Search e ChatZom Search). Dopo averle disinstallate dal computer e avere disattivate su Google Chrome, ogni volta che aprò il browser mi si aprono due pagine in più con le home page di Babylon e ChatZom. Dopo una prima analisi con HijackThis ho fixato la voce che conteneva ChatZom ma non è cambiato nulla e non sò più come fare per eliminarle dato che non ho trovato file in giro con quel nome. Ho provato a cambiare la home page predefinita, avevo letto in giro che mettondo Google come predefinito si risolveva il problema, ma non è cambiato nulla.

Questo è il mio log di HijackThis:

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 15.20.13, on 28/06/2012
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
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\system32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Programmi\Avira\AntiVir Desktop\sched.exe
C:\Programmi\Avira\AntiVir Desktop\avguard.exe
C:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\ASTSRV.EXE
C:\Programmi\Bonjour\mDNSResponder.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\Programmi\File comuni\LightScribe\LSSrvc.exe
C:\Programmi\Nero\Update\NASvc.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\NlsSrv32.exe
C:\Programmi\File comuni\PACE\Services\LicenseServices\LDSvc.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Hewlett-Packard\Shared\hpqwmiex.exe
C:\Programmi\Avira\AntiVir Desktop\avshadow.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Programmi\HPQ\IAM\bin\asghost.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\Analog Devices\Core\smax4pnp.exe
C:\WINDOWS\System32\DLA\DLACTRLW.EXE
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\WINDOWS\system32\igfxpers.exe
C:\Programmi\hpq\HP Wireless Assistant\HP Wireless Assistant.exe
C:\WINDOWS\SMINST\Scheduler.exe
C:\Programmi\Hp\HP Software Update\HPWuSchd2.exe
C:\PROGRA~1\HPQ\Shared\HPQTOA~1.EXE
C:\Programmi\Avira\AntiVir Desktop\avgnt.exe
C:\Programmi\File comuni\Java\Java Update\jusched.exe
C:\Programmi\Trend Micro\HiJackThis\HiJackThis.exe
C:\Documents and Settings\Nicola\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Nicola\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Nicola\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Nicola\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Nicola\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
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\Search,SearchAssistant =
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.hp.com/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\System32\DLA\DLASHX_W.DLL
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre6\bin\ssv.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: HP Credential Manager for ProtectTools - {DF21F1DB-80C6-11D3-9483-B03D0EC10000} - C:\Programmi\HPQ\IAM\Bin\ItIeAddIN.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugi n.dll
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Programmi\Analog Devices\Core\smax4pnp.exe
O4 - HKLM\..\Run: [PTHOSTTR] C:\Programmi\HPQ\HP ProtectTools Security Manager\PTHOSTTR.EXE /Start
O4 - HKLM\..\Run: [DLA] C:\WINDOWS\System32\DLA\DLACTRLW.EXE
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [hpWirelessAssistant] C:\Programmi\hpq\HP Wireless Assistant\HP Wireless Assistant.exe
O4 - HKLM\..\Run: [CognizanceTS] rundll32.exe C:\PROGRA~1\HPQ\IAM\Bin\AsTsVcc.dll,RegisterModule
O4 - HKLM\..\Run: [Cpqset] C:\Programmi\HPQ\Default Settings\cpqset.exe
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\Sminst\Recguard.exe
O4 - HKLM\..\Run: [Reminder] C:\WINDOWS\Creator\Remind_XP.exe
O4 - HKLM\..\Run: [Scheduler] C:\WINDOWS\SMINST\Scheduler.exe
O4 - HKLM\..\Run: [WatchDog] C:\Programmi\InterVideo\DVD Check\DVDCheck.exe
O4 - HKLM\..\Run: [HP Software Update] C:\Programmi\Hp\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [avgnt] "C:\Programmi\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Programmi\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Programmi\File comuni\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\File comuni\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [NBAgent] "C:\Programmi\Nero\Nero 11\Nero BackItUp\NBAgent.exe" /WinStart
O4 - HKCU\..\Run: [Google Update] "C:\Documents and Settings\Nicola\Impostazioni locali\Dati applicazioni\Google\Update\GoogleUpdate.exe" /c
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')
O4 - Global Startup: DVD Check.lnk = C:\Programmi\InterVideo\DVD Check\DVDCheck.exe
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
O14 - IERESET.INF: START_PAGE_URL=http://www.hp.com
O20 - Winlogon Notify: OneCard - C:\Programmi\HPQ\IAM\Bin\AsWlnPkg.dll
O22 - SharedTaskScheduler: Precaricatore Browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Daemon di cache delle categorie di componenti - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Avira Pianificatore (AntiVirSchedulerService) - Avira Operations GmbH & Co. KG - C:\Programmi\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira Realtime Protection (AntiVirService) - Avira Operations GmbH & Co. KG - C:\Programmi\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: AST Service (astcc) - Nalpeiron Ltd. - C:\WINDOWS\system32\ASTSRV.EXE
O23 - Service: Bonjour Service - Apple Inc. - C:\Programmi\Bonjour\mDNSResponder.exe
O23 - Service: hpqwmiex - Hewlett-Packard Development Company, L.P. - C:\Programmi\Hewlett-Packard\Shared\hpqwmiex.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Programmi\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Programmi\File comuni\LightScribe\LSSrvc.exe
O23 - Service: @C:\Programmi\Nero\Update\NASvc.exe,-200 (NAUpdate) - Nero AG - C:\Programmi\Nero\Update\NASvc.exe
O23 - Service: Nalpeiron Licensing Service (nlsX86cc) - Nalpeiron Ltd. - C:\WINDOWS\system32\NlsSrv32.exe
O23 - Service: PACE License Services (PaceLicenseDServices) - PACE Anti-Piracy, Inc. - C:\Programmi\File comuni\PACE\Services\LicenseServices\LDSvc.exe
O23 - Service: PC Angel (PCA) - SoftThinks - C:\WINDOWS\SMINST\PCAngel.exe

--
End of file - 8673 bytes

Se qualcuno può aiutarmi a eliminarle per sempre mi fa un grandissimo piacere.

Grazie