Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 9.28.56, on 20/03/2012
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.17108)
Boot mode: Normal

Running processes:
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\RTDCPL.EXE
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\Program Files\CyberLink\PowerDVD DX\PDVDDXSrv.exe
C:\Programmi\FreePDF_XP\fpassist.exe
C:\Programmi\CA\eTrustITM\realmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Programmi\Microsoft Firewall Client 2004\FwcMgmt.exe
C:\Documents and Settings\iudicei\Dati applicazioni\Dropbox\bin\Dropbox.exe
C:\Documents and Settings\iudicei\Impostazioni locali\Dati applicazioni\PNotes\PNotes.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\wuauclt.exe
C:\DOCUME~1\iudicei\IMPOST~1\Temp\Rar$EX00.141\procexp.exe
C:\DOCUME~1\iudicei\IMPOST~1\Temp\Rar$EX00.391\procexp.exe
C:\Documents and Settings\iudicei\Impostazioni locali\Dati applicazioni\MiKTeX\miktex\bin\miktex-texworks.exe
C:\Programmi\Microsoft Office\OFFICE11\WINWORD.EXE
C:\Programmi\Microsoft Office\OFFICE11\OUTLOOK.EXE
C:\Documents and Settings\iudicei\Impostazioni locali\Dati applicazioni\Skype\Phone\Skype.exe
C:\Documents and Settings\iudicei\Dati applicazioni\Trend Micro\HiJackThis\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://g.uk.msn.com/USREL/11
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.bing.com/sphome.aspx
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://www.bing.com
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
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.bing.com/sphome.aspx
R1 - HKLM\Software\Microsoft\Internet Explorer\Search,Default_Page_URL = http://g.uk.msn.com/USREL/11
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://go.microsoft.com/fwlink/?LinkId=74005
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer provided by CIRA scpa
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = isawsenew.CIRA.IT:8080
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
F3 - REG:win.ini: load=C:\DOCUME~1\iudicei\LOCALS~1\Temp\msdubmna.scr
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Programmi\File comuni\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Programmi\Java\jre6\bin\ssv.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
O4 - HKLM\..\Run: [RTHDCPL] RTDCPL.EXE
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: [ChangeTPMAuth] C:\Programmi\Wave Systems Corp\Common\ChangeTPMAuth.exe /T:NTRU12
O4 - HKLM\..\Run: [PDVDDXSrv] "C:\Program Files\CyberLink\PowerDVD DX\PDVDDXSrv.exe"
O4 - HKLM\..\Run: [FreePDF Assistant] C:\Programmi\FreePDF_XP\fpassist.exe
O4 - HKLM\..\Run: [CAF_SystemTray] "C:\Programmi\CA\DSM\bin\cfSysTray.exe"
O4 - HKLM\..\Run: [DsmSxplog] "C:\Programmi\CA\DSM\Bin\sxpstub.exe"
O4 - HKLM\..\Run: [Realtime Monitor] "C:\Programmi\CA\eTrustITM\realmon.exe" -s
O4 - HKLM\..\Run: [Adobe ARM] "C:\Programmi\File comuni\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Google Update] "C:\Documents and Settings\iudicei\Impostazioni locali\Dati applicazioni\Google\Update\GoogleUpdate.exe" /c
O4 - HKCU\..\Run: [TUG] C:\Documents and Settings\iudicei\Dati applicazioni\5E8386.exe
O4 - HKCU\..\Run: [{7BAD9524-5DB0-0B4F-7A45-366450FF50FA}] "C:\Documents and Settings\iudicei\Dati applicazioni\Car\ontuuk.exe"
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 - Startup: Dropbox.lnk = C:\Documents and Settings\iudicei\Dati applicazioni\Dropbox\bin\Dropbox.exe
O4 - Startup: PNotes.lnk = C:\Documents and Settings\iudicei\Impostazioni locali\Dati applicazioni\PNotes\PNotes.exe
O4 - Global Startup: Microsoft Firewall Client Management.lnk = C:\Programmi\Microsoft Firewall Client 2004\FwcMgmt.exe
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
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\jre6\bin\jp2iexp.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Programmi\Java\jre6\bin\jp2iexp.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} - 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
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1267705945453
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1267777860187
O16 - DPF: {CAFECAFE-0013-0001-0013-ABCDEFABCDEF} (JInitiator 1.3.1.13) -
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} (get_atlcom Class) - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = CIRA.IT
O17 - HKLM\Software\..\Telephony: DomainName = CIRA.IT
O17 - HKLM\System\CCS\Services\Tcpip\..\{01E7D802-9DEB-4724-A1CA-AAF243871F3D}: NameServer = 156.14.1.122,156.14.1.102
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = CIRA.IT
O17 - HKLM\System\CS1\Services\Tcpip\..\{01E7D802-9DEB-4724-A1CA-AAF243871F3D}: NameServer = 156.14.1.122,156.14.1.102
O20 - Winlogon Notify: rcHostExt - C:\Programmi\CA\DSM\Bin\rcLoginExt.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: CA Message Queuing Server (CA-MessageQueuing) - CA, Inc. - C:\Programmi\CA\SC\CAM\bin\cam.exe
O23 - Service: CA Connection Broker (CA-SAM-Pmux) - CA Inc. - C:\Programmi\CA\SC\Csam\SockAdapter\bin\csampmux.exe
O23 - Service: CA DSM r12 Common Application Framework (caf) - CA, Inc. - C:\Programmi\CA\DSM\bin\caf.exe
O23 - Service: CA Systems Performance LiteAgent (CASPLiteAgent) - Unknown owner - C:\Programmi\CA\SC\Systems Performance LiteAgent\bin\casplitegent.exe (file missing)
O23 - Service: iTechnology iGateway 4.2 (iGateway) - CA, Inc. - C:\Programmi\CA\SharedComponents\iTechnology\igateway.exe
O23 - Service: Servizio RPC eTrust ITM (InoRPC) - CA - C:\Programmi\CA\eTrustITM\InoRpc.exe
O23 - Service: Servizio in tempo reale di eTrust ITM (InoRT) - CA - C:\Programmi\CA\eTrustITM\InoRT.exe
O23 - Service: Servizio processi eTrust ITM (InoTask) - CA - C:\Programmi\CA\eTrustITM\InoTask.exe
O23 - Service: CA Pest Patrol Realtime Protection Service (ITMRTSVC) - CA, Inc. - C:\Programmi\CA\SharedComponents\PPRealtime\bin\ITMRTSVC.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Programmi\Java\jre6\bin\jqs.exe
O23 - Service: stllssvr - MicroVision Development, Inc. - c:\Programmi\File comuni\SureThing Shared\stllssvr.exe

--
End of file - 8837 bytes

Aggiungo una cosa, ho già effettuato il controllo automatico e mi risulta come "malevola" la chiave di registro:
HKCU\..\Run: [{7BAD9524-5DB0-0B4F-7A45-366450FF50FA}] "C:\Documents and Settings\iudicei\Dati applicazioni\Car\ontuuk.exe"
Ho provato ad eliminare questa chiave ma si ricrea dopo poco tempo. Inoltre nella stessa cartella stessa cosa succede con la chiave:
HKCU\..\Run: [TUG] "C:\Documents and Settings\iudicei\Dati applicazioni\5E8386.exe"
Ho dato una occhiata ai processi ma non trovo niente di anomalo (per quanto possa capirne...)

Che cosa è?

O23 - Service: CA Pest Patrol Realtime Protection Service (ITMRTSVC) - CA, Inc. - C:\Programmi\CA\SharedComponents\PPRealtime\bin\ITMRTSVC.exe


Potrebbe andare in conflitto con un altro antivirus?

Ciao davix, riguarda questo sw C:\Programmi\CA\eTrustITM\realmon.exe, non vedo altri antrivirus, se dovesse installare MSE, come consigliato, è meglio disattivarlo, anche se non dovrebbe creare conflitti.
Comunque io lo eliminerei, infatti hoi fatto eliminare la voce in avvio.

OK adesso abbiamo chiarito.
Tutte le voci 04 non rimuovono i programmi ma disattivano l'avvio automatico, quando sono troppe rallentano il siatema, quindi quelle che riguardano Google, adobe e CyberLink non servono, comunque a tua scelta.
Per il resto il pc non presenta problemi.
Un consiglio, se usate come browser solo I.E. ti consiglio di installare I.E. 8 più sicuro e performante.
Consigliato anche fare spesso una pulizia con Ccleaner e tenere deframmentato il disco.
Ciao e buon lavoro.