un'occhiata...grazie

[marama]

Logfile of HijackThis v1.99.0
Scan saved at 13.35.55, on 13/02/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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\spoolsv.exe
C:\Programmi\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\Programmi\File comuni\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Programmi\SolidDocuments\SolidConverterPDF\SCPDF\SolidPdfService.exe
C:\WINDOWS\System32\PAStiSvc.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\system32\CTHELPER.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\Programmi\HP\HP Software Update\HPWuSchd.exe
C:\Programmi\HP\hpcoretech\hpcmpmgr.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Programmi\Adobe\Acrobat 6.0\Distillr\acrotray.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\Programmi\MSN Messenger\usnsvc.exe
C:\Programmi\Outlook Express\msimn.exe
C:\Programmi\PeerGuardian2\pg2.exe
C:\Programmi\eMule\emule.exe
C:\hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.it/
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 6.0\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: GigagetIEHelper - {111CAA23-6F4F-42AC-8555-B48C1D87BBAB} - C:\WINDOWS\system32\gigagetbho_v10.dll
O2 - BHO: Solid Converter PDF - {259F616C-A300-44F5-B04A-ED001A26C85C} - C:\Programmi\SolidDocuments\SolidConverterPDF\SCPDF\ExploreExtPDF.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Programmi\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre1.5.0_09\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: NetXfer - {83B80A9C-D91A-4F22-8DCF-EA7204039F79} - C:\Programmi\Xi\NetXfer\NXIEHelper.dll
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: AcroIEToolbarHelper Class - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Programmi\Adobe\Acrobat 6.0\Acrobat\AcroIEFavClient.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Programmi\Windows Live Toolbar\msntb.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Programmi\Adobe\Acrobat 6.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: Solid Converter PDF - {259F616C-A300-44F5-B04A-ED001A26C85C} - C:\Programmi\SolidDocuments\SolidConverterPDF\SCPDF\ExploreExtPDF.dll
O3 - Toolbar: NetXfer - {C16CBAAC-A75C-4DB5-A0DD-CDF5CAFCDD3A} - C:\Programmi\Xi\NetXfer\NXToolBar.dll
O4 - HKLM\..\Run: [DXDllRegExe] dxdllreg.exe
O4 - HKLM\..\Run: [CTHelper] CTHELPER.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [HP Software Update] "C:\Programmi\HP\HP Software Update\HPWuSchd.exe"
O4 - HKLM\..\Run: [HP Component Manager] "C:\Programmi\HP\hpcoretech\hpcmpmgr.exe"
O4 - HKLM\..\Run: [italy] C:\WINDOWS\smernic.exe --start
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NVMCTRAY.DLL,NvTaskbarInit
O4 - HKCU\..\Run: [PeerGuardian] C:\Programmi\PeerGuardian2\pg2.exe
O4 - HKCU\..\Run: [AnyDVD] C:\Programmi\SlySoft\AnyDVD\AnyDVD.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Programmi\MSN Messenger\MsnMsgr.Exe" /background
O4 - Global Startup: Acrobat Assistant.lnk = C:\Programmi\Adobe\Acrobat 6.0\Distillr\acrotray.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Programmi\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Programmi\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: &Download All by Gigaget - C:\Programmi\Giganology\Gigaget\getallurl.htm
O8 - Extra context menu item: &Download by Gigaget - C:\Programmi\Giganology\Gigaget\geturl.htm
O8 - Extra context menu item: &Windows Live Search - res://C:\Programmi\Windows Live Toolbar\msntb.dll/search.htm
O8 - Extra context menu item: Apri in nuova scheda in primo piano - res://C:\Programmi\Windows Live Toolbar\Components\it-it\msntabres.dll.mui/230?05027c6338044cb29dd9532a8691dcde
O8 - Extra context menu item: Apri in nuova scheda in secondo piano - res://C:\Programmi\Windows Live Toolbar\Components\it-it\msntabres.dll.mui/229?05027c6338044cb29dd9532a8691dcde
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Salva oggetto con NetXfer - C:\Programmi\Xi\NetXfer\NXAddLink.html
O8 - Extra context menu item: Salva tutti gli oggetti con NetXfer - C:\Programmi\Xi\NetXfer\NXAddList.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_09\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre1.5.0_09\bin\ssv.dll
O9 - Extra button: (no name) - SolidConverterPDF - (no file) (HKCU)
O17 - HKLM\System\CCS\Services\Tcpip\..\{25C631B4-D191-47A0-91DC-B39C2DFE5E56}: NameServer = 212.216.172.62,212.216.112.112
O18 - Protocol: cetihpz - {CF184AD3-CDCB-4168-A3F7-8E447D129300} - C:\Programmi\HP\hpcoretech\comp\hpuiprot.dll
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: AVG Anti-Spyware Guard - Anti-Malware Development a.s. - C:\Programmi\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: AVG7 Alert Manager Server - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: AVG E-mail Scanner - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O23 - Service: DirectX Service - Unknown - C:\WINDOWS\system32\directx.exe (file missing)
O23 - Service: InstallDriver Table Manager - Macrovision Corporation - C:\Programmi\File comuni\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: NVIDIA Driver Helper Service - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: SolidPDFConverterReadSpool - VoyagerSoft, LLC - C:\Programmi\SolidDocuments\SolidConverterPDF\SCPDF\SolidPdfService.exe
O23 - Service: STI Simulator - Unknown - C:\WINDOWS\System32\PAStiSvc.exe

[vinc_it]

Hai un malware, è la voce

O4 - HKLM\..\Run: [italy] C:\WINDOWS\smernic.exe --start

e ovviamente dovresti eliminarlo.
Ci sono altre 2 voci sospette ma puoi verificarlo personalmente postando il log a questo indirizzo e premendo Analizza:

http://www.hijackthis.de/index.php

Ciao.

[c.m.g]

tread ufficiale, grazie:

http://www.hwupgrade.it/forum/showthread.php?t=937676