Un mio collega ha preso un hijacker sul suo pc e ame tocca ripararlo
In pratica la home di explorer è settata su default.home, e quando si prova a digitare un url manda ad una pagina collegata a wtlbass32.dll.

Il log di Hijackthis è quello sottostante, le voci in neretto sono quelle che ho eliminato senza risolvere la situazione.

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Logfile of HijackThis v1.99.0
Scan saved at 12.54.16, on 03/02/2005
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\System32\inetsrv\inetinfo.exe
C:\WINNT\Explorer.EXE
C:\WINNT\system32\atiptaxx.exe
C:\Programmi\Java\jre1.5.0\bin\jusched.exe
C:\WINNT\system32\internat.exe
C:\WINNT\system32\CTFMONSS.EXE
C:\WINNT\system32\CSRSSW.EXE
C:\WINNT\system32\wuauclt.exe
C:\Documents and Settings\Administrator\Desktop\hijackthis\HijackTh is.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://default.home
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://default.home
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Programmi\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: VDOMP Class - {A0ED918D-B8E6-4c3d-BD15-1DB1AE9A5DD3} - C:\WINNT\wtlbass32.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [AtiPTA] atiptaxx.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Programmi\Java\jre1.5.0\bin\jusched.exe
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - HKCU\..\Run: [CTFMONSS] C:\WINNT\system32\CTFMONSS.EXE
O4 - HKCU\..\Run: [CSRSSW] C:\WINNT\system32\CSRSSW.EXE
O4 - Global Startup: Adobe Gamma Loader.exe.lnk = C:\Programmi\File comuni\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: &Google Search - res://c:\programmi\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: Collegamenti a ritroso - res://c:\programmi\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Pagine simili - res://c:\programmi\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Versione cache della pagina - res://c:\programmi\google\GoogleToolbar2.dll/cmcache.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0\bin\npjpi150.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0\bin\npjpi150.dll
O23 - Service: Ati HotKey Poller - Unknown - C:\WINNT\System32\Ati2evxx.exe
O23 - Service: Servizio amministrativo di Gestione disco logico - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe