Ciao ragazzi,
un mio amico mi ha portato il suo pc che "ha qualche problemino" e la situazione è questa.
Windows Media Center Edition, all'avvio partono popup che parlano di Potential Spyware Operation esi aprono finestre di Internet Explorer che mi chiedono di scaricare programmi come Drive Cleaner, Privacy Protector etc.

Vi allego il log di HiJackThis.

codice:
Logfile of HijackThis v1.99.1
Scan saved at 7.58.49, on 10/07/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16473)

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\Explorer.EXE
C:\Programmi\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://gomyron.com/NjU2NA==/2/3560/homepage/
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 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: &Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - c:\Programmi\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: MSVPS System - {49CF52D7-8D58-4E22-A874-AAD721F5B523} - C:\WINDOWS\ddesupport.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.6.0_01\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: Acer eDataSecurity Management - {5CBE3B7C-1E47-477e-A7DD-396DB0476E29} - C:\WINDOWS\system32\eDStoolbar.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O4 - HKLM\..\Run: [ehTray] C:\WINDOWS\ehome\ehtray.exe
O4 - HKLM\..\Run: [LaunchApp] Alaunch
O4 - HKLM\..\Run: [SkyTel] SkyTel.EXE
O4 - HKLM\..\Run: [ntiMUI] c:\Programmi\NewTech Infosystems\NTI CD & DVD-Maker 7\ntiMUI.exe
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [IMEKRMIG6.1] C:\WINDOWS\ime\imkr6_1\IMEKRMIG.EXE
O4 - HKLM\..\Run: [MSPY2002] C:\WINDOWS\system32\IME\PINTLGNT\ImScInst.exe /SYNC
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre1.6.0_01\bin\jusched.exe"
O4 - HKLM\..\Run: [Acer Empowering Technology Monitor] C:\WINDOWS\system32\SysMonitor.exe
O4 - HKLM\..\Run: [eRecoveryService] C:\Acer\Empowering Technology\eRecovery\eRAgent.exe
O4 - HKLM\..\Run: [eDataSecurity Loader] C:\Acer\Empowering Technology\eDataSecurity\eDSloader.exe 0
O4 - HKLM\..\Run: [RemoteControl] C:\Programmi\CyberLink\PowerDVD\PDVDServ.exe
O4 - HKLM\..\Run: [{1290A33C-85F5-4164-A1BE-7DD299D4986A}] C:\Programmi\CyberLink\PowerBackup\PBKScheduler.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [MMTray] "C:\Programmi\Musicmatch\Musicmatch Jukebox\mm_tray.exe"
O4 - HKLM\..\Run: [mmtask] "C:\Programmi\Musicmatch\Musicmatch Jukebox\mmtask.exe"
O4 - HKLM\..\Run: [DNSE] "C:\Programmi\File comuni\SystemDoctor\DNSE.exe" -c
O4 - HKLM\..\Run: [MDRT_Check] "C:\Programmi\File comuni\SystemDoctor\usdrmdr.exe"
O4 - HKLM\..\Run: [DC6T_Check] "C:\Programmi\File comuni\SystemDoctor\usdrdc.exe"
O4 - HKLM\..\Run: [DriveCleaner 2006 Free] "C:\Programmi\DriveCleaner 2006 Free\UDC2006.exe" /min
O4 - HKLM\..\Run: [udc6cw] "C:\Programmi\DriveCleaner 2006 Free\udc6cw.exe" -c
O4 - HKLM\..\Run: [WinAntiSpyware 2006 Scanner] C:\Programmi\WinAntiSpyware 2006 Scanner\was6.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [swg] C:\Programmi\Google\GoogleToolbarNotifier\1.2.1128.5462\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [NBJ] "C:\Programmi\Ahead\Nero BackItUp\NBJ.exe"
O4 - Global Startup: Acer Empowering Technology.lnk = ?
O4 - Global Startup: Acer WLAN 11g USB Dongle.lnk = C:\Programmi\Acer WLAN 11g USB Dongle\ZDWlan.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Programmi\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.6.0_01\bin\ssv.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: NameServer = 85.255.115.19 85.255.112.183
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: NameServer = 85.255.115.19 85.255.112.183
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O21 - SSODL: msole - {CAB5795B-A774-40FB-9C0D-29BB73E1F766} - C:\WINDOWS\msole.dll
O21 - SSODL: msdde - {B5CA9A9A-BF1A-488F-82CE-946C4A5EBC4B} - C:\WINDOWS\msdde.dll
O23 - Service: Memory Check Service (AcerMemUsageCheckService) - Acer Inc. - C:\Acer\Empowering Technology\ePerformance\MemCheck.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - c:\Programmi\File comuni\LightScribe\LSSrvc.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: Norton AntiVirus Firewall Monitor Service (NPFMntor) - Symantec Corporation - C:\Programmi\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Programmi\File comuni\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: Utilità di pianificazione di LiveUpdate automatico - Symantec Corporation - C:\Programmi\Symantec\LiveUpdate\ALUSchedulerSvc.exe

Grazie a chiunque mi possa aiutare