Ciao a tutti ! Ho bisogno del vostro aiuto...il mio antivirus NOD 32 mi ha dato il seguente messaggio "Memoria operativa » explorer.exe(1360) - una variante di Win32/Spy.Zbot.ZR trojan horse - impossibile disinfettare" e non so proprio come fare ad eliminarlo !!! :( Grazie infinite a chi vorrà darmi una mano !

Di seguito, il log di Hijackthis:

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 10.48.42, on 21/01/2012
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:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\WINDOWS\system32\igfxpers.exe
C:\WINDOWS\SMINST\Scheduler.exe
C:\Programmi\CyberLink\PowerDVD\PDVDServ.exe
C:\Programmi\Microsoft Office\Office12\GrooveMonitor.exe
C:\Programmi\HP\HP Software Update\HPWuSchd2.exe
C:\Programmi\Nero\Nero BackItUp & Burn\Nero BackItUp\NBAgent.exe
C:\Programmi\File comuni\Java\Java Update\jusched.exe
C:\Programmi\iTunes\iTunesHelper.exe
C:\Programmi\ESET\ESET NOD32 Antivirus\egui.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Messenger\msmsgs.exe
C:\Programmi\Samsung\Samsung New PC Studio\NPSAgent.exe
C:\Programmi\File comuni\LightScribe\LightScribeControlPanel.exe
C:\Programmi\IVT Corporation\BlueSoleil\BlueSoleil.exe
C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
C:\Programmi\File comuni\ArcSoft\Connection Service\Bin\ACService.exe
C:\Programmi\File comuni\Apple\Mobile Device Support\AppleMobileDeviceService.exe
C:\Programmi\IVT Corporation\BlueSoleil\BTNtService.exe
C:\Programmi\Bonjour\mDNSResponder.exe
C:\Programmi\ESET\ESET NOD32 Antivirus\ekrn.exe
C:\WINDOWS\system32\FsUsbExService.Exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\File comuni\InterVideo\RegMgr\iviRegMgr.exe
C:\Programmi\Java\jre6\bin\jqs.exe
C:\Programmi\File comuni\LightScribe\LSSrvc.exe
C:\Programmi\File comuni\Nero\Nero BackItUp 4\NBService.exe
C:\Programmi\PDF Complete\pdfsvc.exe
C:\WINDOWS\system32\IoctlSvc.exe
C:\Programmi\CyberLink\Shared files\RichVideo.exe
c:\Programmi\Microsoft SQL Server\90\Shared\sqlwriter.exe
C:\WINDOWS\System32\PAStiSvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\iPod\bin\iPodService.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\wbem\wmiapsrv.exe
C:\Programmi\HP\Digital Imaging\bin\hpqSTE08.exe
C:\Programmi\HP\Digital Imaging\bin\hpqbam08.exe
C:\Programmi\HP\Digital Imaging\bin\hpqgpc01.exe
C:\WINDOWS\system32\notepad.exe
C:\Programmi\Mozilla Firefox\firefox.exe
C:\Programmi\Mozilla Firefox\plugin-container.exe
C:\Documents and Settings\Administrator\Documenti\Download\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://ie.redirect.hp.com/svs/rdr?TYPE=3&tp=iehome&locale=IT_IT&c=74&bd=smb&pf=desktop
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
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://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://go.microsoft.com/fwlink/?LinkId=74005
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 192.168.0.1:3128
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: FreeOnlineRadioPlayerRecorder Toolbar - {f999a48b-1950-4d81-9971-79018f807b4b} - C:\Programmi\FreeOnlineRadioPlayerRecorder\prxtbFre0.dll
O2 - BHO: HP Print Enhancer - {0347C33E-8762-4905-BF09-768834316C61} - C:\Programmi\HP\Digital Imaging\Smart Web Printing\hpswp_printenhancer.dll
O2 - BHO: Complitly - {0FB6A909-6086-458F-BD92-1F8EE10042A0} - C:\Documents and Settings\Administrator\Dati applicazioni\Complitly\Complitly.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\PROGRA~1\MICROS~2\Office12\GRA8E1~1.DLL
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O2 - BHO: FreeOnlineRadioPlayerRecorder - {f999a48b-1950-4d81-9971-79018f807b4b} - C:\Programmi\FreeOnlineRadioPlayerRecorder\prxtbFre0.dll
O2 - BHO: HP Smart BHO Class - {FFFFFFFF-CF4E-4F2B-BDC2-0E72E116A856} - C:\Programmi\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.dll
O3 - Toolbar: (no name) - {0BF43445-2F28-4351-9252-17FE6E806AA0} - (no file)
O3 - Toolbar: FreeOnlineRadioPlayerRecorder Toolbar - {f999a48b-1950-4d81-9971-79018f807b4b} - C:\Programmi\FreeOnlineRadioPlayerRecorder\prxtbFre0.dll
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [Persistence] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [PDF Complete] C:\Programmi\PDF Complete\pdfsty.exe
O4 - HKLM\..\Run: [SetRefresh] C:\Programmi\Compaq\SetRefresh\SetRefresh.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: [RemoteControl] C:\Programmi\CyberLink\PowerDVD\PDVDServ.exe
O4 - HKLM\..\Run: [LanguageShortcut] C:\Programmi\CyberLink\PowerDVD\Language\Language.exe
O4 - HKLM\..\Run: [NBKeyScan] "C:\Programmi\Nero\Nero8\Nero BackItUp\NBKeyScan.exe"
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Programmi\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [HP Software Update] C:\Programmi\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [hpqSRMon] C:\Programmi\HP\Digital Imaging\bin\hpqSRMon.exe
O4 - HKLM\..\Run: [AppleSyncNotifier] C:\Programmi\File comuni\Apple\Mobile Device Support\AppleSyncNotifier.exe
O4 - HKLM\..\Run: [NBAgent] "C:\Programmi\Nero\Nero BackItUp & Burn\Nero BackItUp\NBAgent.exe" /WinStart
O4 - HKLM\..\Run: [ArcSoft Connection Service] C:\Programmi\File comuni\ArcSoft\Connection Service\Bin\ACDaemon.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\File comuni\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [APSDaemon] "C:\Programmi\File comuni\Apple\Apple Application Support\APSDaemon.exe"
O4 - HKLM\..\Run: [iTunesHelper] "C:\Programmi\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [egui] "C:\Programmi\ESET\ESET NOD32 Antivirus\egui.exe" /hide /waitservice
O4 - HKLM\..\Run: [Freecorder FLV Service] "C:\Programmi\Freecorder\FLVSrvc.exe" /run
O4 - HKCU\..\Run: [IndxStoreSvr_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Programmi\File comuni\Nero\Lib\NMIndexStoreSvr.exe" ASO-616B5711-6DAE-4795-A05F-39A1E5104020
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [AutoStartNPSAgent] C:\Programmi\Samsung\Samsung New PC Studio\NPSAgent.exe
O4 - HKCU\..\Run: [LightScribe Control Panel] C:\Programmi\File comuni\LightScribe\LightScribeControlPanel.exe -hidden
O4 - HKCU\..\Run: [Google Update] "C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [{43E58937-9918-DC43-E1B2-C0C2E7830925}] "C:\Documents and Settings\Administrator\Dati applicazioni\Koello\obsuyb.exe"
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (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')
O4 - Global Startup: BlueSoleil.lnk = C:\Programmi\IVT Corporation\BlueSoleil\BlueSoleil.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\WINDOWS\system32\GPhotos.scr/200
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: Invia a OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: I&nvia a OneNote - {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
O9 - Extra button: Selezione intelligente HP - {DDE87865-83C5-48c4-8357-2F5B1AA84522} - C:\Programmi\HP\Digital Imaging\Smart Web Printing\hpswp_BHO.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
O14 - IERESET.INF: START_PAGE_URL=http://www.hp.com
O16 - DPF: {0CCA191D-13A6-4E29-B746-314DEE697D83} (Facebook Photo Uploader 5 Control) - http://upload.facebook.com/controls/2008.10.10_v5.5.8/FacebookPhotoUploader5.cab
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\PROGRA~1\MICROS~2\Office12\GR99D3~1.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: McAfee Application Installer Cleanup (0212801233881675) (0212801233881675mcinstcleanup) - Unknown owner - C:\DOCUME~1\ADMINI~1\IMPOST~1\Temp\021280~1.EXE (file missing)
O23 - Service: ArcSoft Connect Daemon (ACDaemon) - ArcSoft Inc. - C:\Programmi\File comuni\ArcSoft\Connection Service\Bin\ACService.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Programmi\File comuni\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: BlueSoleil Hid Service - Unknown owner - C:\Programmi\IVT Corporation\BlueSoleil\BTNtService.exe
O23 - Service: Servizio Bonjour (Bonjour Service) - Apple Inc. - C:\Programmi\Bonjour\mDNSResponder.exe
O23 - Service: ESET HTTP Server (EhttpSrv) - ESET - C:\Programmi\ESET\ESET NOD32 Antivirus\EHttpSrv.exe
O23 - Service: ESET Service (ekrn) - ESET - C:\Programmi\ESET\ESET NOD32 Antivirus\ekrn.exe
O23 - Service: FsUsbExService - Teruten - C:\WINDOWS\system32\FsUsbExService.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\11\Intel 32\IDriverT.exe
O23 - Service: Servizio iPod (iPod Service) - Apple Inc. - C:\Programmi\iPod\bin\iPodService.exe
O23 - Service: IviRegMgr - InterVideo - C:\Programmi\File comuni\InterVideo\RegMgr\iviRegMgr.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: Nero BackItUp Scheduler 4.0 - Nero AG - C:\Programmi\File comuni\Nero\Nero BackItUp 4\NBService.exe
O23 - Service: PC Angel (PCA) - SoftThinks - C:\WINDOWS\SMINST\PCAngel.exe
O23 - Service: PDF Document Manager (pdfcDispatcher) - PDF Complete Inc - C:\Programmi\PDF Complete\pdfsvc.exe
O23 - Service: PLFlash DeviceIoControl Service - Prolific Technology Inc. - C:\WINDOWS\system32\IoctlSvc.exe
O23 - Service: Cyberlink RichVideo Service(CRVS) (RichVideo) - Unknown owner - C:\Programmi\CyberLink\Shared files\RichVideo.exe
O23 - Service: ServiceLayer - Nokia. - C:\Programmi\PC Connectivity Solution\ServiceLayer.exe
O23 - Service: STI Simulator - Unknown owner - C:\WINDOWS\System32\PAStiSvc.exe

--
End of file - 12682 bytes

Chiudi tutti i programmi e disconnesso lanci HJT e clicca sul secondo pulsante: Do a system scan only poi metti la spunta alle voci che ti indico e alla fine clic su Fix checked.

R3 - URLSearchHook: FreeOnlineRadioPlayerRecorder Toolbar - {f999a48b-1950-4d81-9971-79018f807b4b} - C:\Programmi\FreeOnlineRadioPlayerRecorder\prxtbFre0.dll
O2 - BHO: Complitly - {0FB6A909-6086-458F-BD92-1F8EE10042A0} - C:\Documents and Settings\Administrator\Dati applicazioni\Complitly\Complitly.dll
O3 - Toolbar: (no name) - {0BF43445-2F28-4351-9252-17FE6E806AA0} - (no file)
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [Reminder] C:\WINDOWS\Creator\Remind_XP.exe
O4 - HKLM\..\Run: [Scheduler] C:\WINDOWS\SMINST\Scheduler.exe
O4 - HKLM\..\Run: [NBKeyScan] "C:\Programmi\Nero\Nero8\Nero BackItUp\NBKeyScan.exe"
O4 - HKLM\..\Run: [HP Software Update] C:\Programmi\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [hpqSRMon] C:\Programmi\HP\Digital Imaging\bin\hpqSRMon.exe
O4 - HKLM\..\Run: [AppleSyncNotifier] C:\Programmi\File comuni\Apple\Mobile Device Support\AppleSyncNotifier.exe
O4 - HKLM\..\Run: [NBAgent] "C:\Programmi\Nero\Nero BackItUp & Burn\Nero BackItUp\NBAgent.exe" /WinStart
O4 - HKLM\..\Run: [ArcSoft Connection Service] C:\Programmi\File comuni\ArcSoft\Connection Service\Bin\ACDaemon.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\File comuni\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Programmi\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [APSDaemon] "C:\Programmi\File comuni\Apple\Apple Application Support\APSDaemon.exe"
O4 - HKLM\..\Run: [iTunesHelper] "C:\Programmi\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [Freecorder FLV Service] "C:\Programmi\Freecorder\FLVSrvc.exe" /run
O4 - HKCU\..\Run: [IndxStoreSvr_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Programmi\File comuni\Nero\Lib\NMIndexStoreSvr.exe" ASO-616B5711-6DAE-4795-A05F-39A1E5104020
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [LightScribe Control Panel] C:\Programmi\File comuni\LightScribe\LightScribeControlPanel.exe -hidden
O4 - HKCU\..\Run: [Google Update] "C:\Documents and Settings\Administrator\Impostazioni locali\Dati applicazioni\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [{43E58937-9918-DC43-E1B2-C0C2E7830925}] "C:\Documents and Settings\Administrator\Dati applicazioni\Koello\obsuyb.exe"
O4 - Global Startup: BlueSoleil.lnk = C:\Programmi\IVT Corporation\BlueSoleil\BlueSoleil.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe

Poi installa QUESTO programma, lo aggiorni poi fai una scansione COMPLETA non veloce elimina quello che trova e posta il suo log.

Fai una pulizia con Ccleaner compreso il Registro.

Provvedi a svuotare del suo contenuto la cartella Prefetch :
clicca su Risorse del Computer
clicca su Disco locale C:
cerca, all’interno delle cartelle che saranno visualizzate la cartella Windows,
aprila ed, al suo interno, cerca la cartella Prefetch, la apri ed elimina tutte le voci
conservate al suo interno ( non eliminare la cartella)

Disattiva il ripristino configurazione di sistema
start,pannello di controllo,sistema,configurazione di sistema,metti la spunta a
"disattiva ripristino configurazione di sistema su tutte le unita'",applica,ok.
spegni e riaccendi il pc, (fai l’operazione inversa per riattivarlo).
Fai sapere come va il pc. Ciao