ciao a tutti,
vi scrivo perchè ho un problema con il mio pc che si è rallentato tantissimo! dal mio task menager di windows ho visto che il mio procesore va a circa 52% e ci sono programmi che utilizzano tanta memoria (a parte explorer e chrome): avp.exe, svchost.ex,OfferBox.exe ecc..sono virus?
da poco ho messo kaspersky come antivirus e non sono molto esperta nel risolvere qst problemi!

grazie per l'aiuto!

questo è il mio log:

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 7:20:09 PM, on 7/24/2010
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18241)
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:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\PROGRA~1\ESRI\License\arcgis9x\lmgrd.exe
C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2011\avp.exe
C:\PROGRA~1\ESRI\License\arcgis9x\ARCGIS.exe
C:\Programmi\Bonjour\mDNSResponder.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\Programmi\File comuni\EPSON\EBAPI\SAgent2.exe
C:\Documents and Settings\All Users\Dati applicazioni\EPSON\EPW!3 SSRP\E_S40ST7.EXE
C:\Documents and Settings\All Users\Dati applicazioni\EPSON\EPW!3 SSRP\E_S40RP7.EXE
C:\Programmi\Java\jre6\bin\jqs.exe
C:\Programmi\File comuni\LightScribe\LSSrvc.exe
C:\Programmi\File comuni\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
C:\Programmi\Telecom Italia\WanMiniport1st\WanMiniport1st_srv.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Programmi\Microsoft\Search Enhancement Pack\SeaPort\SeaPort.exe
C:\WINDOWS\system32\svchost.exe
C:\Programmi\Hewlett-Packard\Shared\hpqwmiex.exe
C:\WINDOWS\system32\mqsvc.exe
C:\WINDOWS\system32\mqtgsvc.exe
C:\WINDOWS\system32\dllhost.exe
C:\WINDOWS\Explorer.EXE
C:\Programmi\hpq\HP Wireless Assistant\HP Wireless Assistant.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\Programmi\Java\jre6\bin\jusched.exe
C:\WINDOWS\system32\NWTRAY.EXE
C:\Programmi\SweetIM\Messenger\SweetIM.exe
C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2011\avp.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Documents and Settings\Mariasilvia\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Mariasilvia\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Mariasilvia\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Mariasilvia\Impostazioni locali\Dati applicazioni\Google\Chrome\Application\chrome.exe
C:\WINDOWS\system32\msiexec.exe
C:\Programmi\Trend Micro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.live.com/sphome.aspx
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.live.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://home.sweetim.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://it.yahoo.com
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://home.sweetim.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://search.live.com/sphome.aspx
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 192.126.92.254:8085
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
R3 - URLSearchHook: (no name) - {A3BC75A2-1F87-4686-AA43-5347D756017C} - (no file)
R3 - URLSearchHook: SweetIM ToolbarURLSearchHook Class - {EEE6C35D-6118-11DC-9C72-001320C79847} - C:\Programmi\SweetIM\Toolbars\Internet Explorer\mgHelper.dll
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Skype add-on (mastermind) - {22BF413B-C6D2-4d91-82A9-A0F997BA588C} - C:\Programmi\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - (no file)
O2 - BHO: IEVkbdBHO - {59273AB4-E7D3-40F9-A1A8-6FA9CCA1862C} - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2011\ievkbd.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Search Helper - {6EBF7485-159F-4bff-A14F-B9E3AAC4465B} - C:\Programmi\Microsoft\Search Enhancement Pack\Search Helper\SEPsearchhelperie.dll
O2 - BHO: Guida per l'accesso a Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Programmi\File comuni\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Easy Photo Print - {9421DD08-935F-4701-A9CA-22DF90AC4EA6} - C:\Programmi\Epson Software\Easy Photo Print\EPTBL.dll
O2 - BHO: (no name) - {A3BC75A2-1F87-4686-AA43-5347D756017C} - (no file)
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\programmi\google\googletoolbar2.dll
O2 - BHO: Adobe PDF Conversion Toolbar Helper - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Programmi\Google\GoogleToolbarNotifier\5.1.1309.3572\swg.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Programmi\Java\jre6\bin\jp2ssv.dll
O2 - BHO: Windows Live Toolbar Helper - {E15A8DC0-8516-42A1-81EA-DC94EC1ACF10} - C:\Programmi\Windows Live\Toolbar\wltcore.dll
O2 - BHO: link filter bho - {E33CF602-D945-461A-83F0-819F76A199F8} - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2011\klwtbbho.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Programmi\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O2 - BHO: EpsonToolBandKicker Class - {E99421FB-68DD-40F0-B4AC-B7027CAE2F1A} - C:\Programmi\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O2 - BHO: SWEETIE - {EEE6C35C-6118-11DC-9C72-001320C79847} - C:\Programmi\SweetIM\Toolbars\Internet Explorer\mgToolbarIE.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\programmi\google\googletoolbar2.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programmi\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: &Windows Live Toolbar - {21FA44EF-376D-4D53-9B0F-8A89D3229068} - C:\Programmi\Windows Live\Toolbar\wltcore.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: DAEMON Tools Toolbar - {32099AAC-C132-4136-9E9A-4E364A424E17} - C:\Programmi\DAEMON Tools Toolbar\DTToolbar.dll
O3 - Toolbar: EPSON Web-To-Page - {EE5D279F-081B-4404-994D-C6B60AAEBA6D} - C:\Programmi\EPSON\EPSON Web-To-Page\EPSON Web-To-Page.dll
O3 - Toolbar: Easy Photo Print - {9421DD08-935F-4701-A9CA-22DF90AC4EA6} - C:\Programmi\Epson Software\Easy Photo Print\EPTBL.dll
O3 - Toolbar: SweetIM Toolbar for Internet Explorer - {EEE6C35B-6118-11DC-9C72-001320C79847} - C:\Programmi\SweetIM\Toolbars\Internet Explorer\mgToolbarIE.dll
O4 - HKLM\..\Run: [hpWirelessAssistant] C:\Programmi\hpq\HP Wireless Assistant\HP Wireless Assistant.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Programmi\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NWTRAY] NWTRAY.EXE
O4 - HKLM\..\Run: [SweetIM] C:\Programmi\SweetIM\Messenger\SweetIM.exe
O4 - HKLM\..\Run: [AVP] "C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2011\avp.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Google Update] "C:\Documents and Settings\Mariasilvia\Impostazioni locali\Dati applicazioni\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [OfferBox] C:\Programmi\OfferBox\OfferBox.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: Tasto di scelta rapida per l'avvio di AutoCAD.lnk = C:\Programmi\File comuni\Autodesk Shared\acstart17.exe
O8 - Extra context menu item: Append to existing PDF - res://C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert link target to Adobe PDF - res://C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert link target to existing PDF - res://C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert selected links to Adobe PDF - res://C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert selected links to existing PDF - res://C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Convert selection to Adobe PDF - res://C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert selection to existing PDF - res://C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Programmi\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Blog This - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Blog This in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Programmi\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: &Tastiera Virtuale - {4248FE82-7FCB-46AC-B270-339F08212110} - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2011\klwtbbho.dll
O9 - Extra button: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - C:\Programmi\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O9 - Extra button: Ricerche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O9 - Extra button: C&ontrollo URL - {CCF151D8-D089-449F-A5A4-D9909053F20F} - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2011\klwtbbho.dll
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://ie.redirect.hp.com/svs/rdr?TYPE=3&tp=iehome&locale=IT_IT&c=64&bd=pavilion&pf=laptop
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: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - (no file)
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FILECO~1\Skype\SKYPE4~1.DLL
O20 - AppInit_DLLs: C:\PROGRA~1\KASPER~1\KASPER~1\mzvkbd3.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: AddFiltr - Hewlett-Packard Development Company, L.P. - C:\Programmi\Hewlett-Packard\HP Quick Launch Buttons\AddFiltr.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Programmi\File comuni\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: ArcGIS License Manager - Unknown owner - C:\PROGRA~1\ESRI\License\arcgis9x\lmgrd.exe
O23 - Service: Autodesk Licensing Service - Autodesk - C:\Programmi\File comuni\Autodesk Shared\Service\AdskScSrv.exe
O23 - Service: Servizio Kaspersky Anti-Virus (AVP) - Kaspersky Lab ZAO - C:\Programmi\Kaspersky Lab\Kaspersky Anti-Virus 2011\avp.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Programmi\Bonjour\mDNSResponder.exe
O23 - Service: Client Update Service for Novell (cusrvc) - Novell, Inc. - C:\WINDOWS\system32\cusrvc.exe
O23 - Service: EPSON Printer Status Agent2 (EPSONStatusAgent2) - SEIKO EPSON CORPORATION - C:\Programmi\File comuni\EPSON\EBAPI\SAgent2.exe
O23 - Service: EPSON V5 Service4(01) (EPSON_EB_RPCV4_01) - SEIKO EPSON CORPORATION - C:\Documents and Settings\All Users\Dati applicazioni\EPSON\EPW!3 SSRP\E_S40ST7.EXE
O23 - Service: EPSON V3 Service4(01) (EPSON_PM_RPCV4_01) - SEIKO EPSON CORPORATION - C:\Documents and Settings\All Users\Dati applicazioni\EPSON\EPW!3 SSRP\E_S40RP7.EXE
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Programmi\File comuni\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Servizio di Google Update (gupdate) (gupdate) - Google Inc. - C:\Programmi\Google\Update\GoogleUpdate.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Programmi\Google\Common\Google Updater\GoogleUpdaterService.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: 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: Network WanMiniport First Position - Unknown owner - C:\Programmi\Telecom Italia\WanMiniport1st\srvany.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: ONDA Autorun CDROM Monitor - Unknown owner - C:\WINDOWS\system32\SupportAppXL\onda_mon.exe (file missing)

--
End of file - 14641 bytes

ciao,benvenuto...posta il tutto nella sezione virus,ciao

http://www.bestspywarescanner.net/errors/OfferBox.exe.html

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Sono cosi avanti che quando guardo indietro vedo il futuro.