grazie mille in anticipo non saprei cosa fare
inserisco il log fatto con hijack

Logfile of HijackThis v1.99.1
Scan saved at 23.35.28, on 29/05/2005
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\carpserv.exe
C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Programmi\HPQ\One-Touch\OneTouch.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\WINDOWS\System32\drivers\CDAC11BA.EXE
C:\Programmi\Symantec\Norton Ghost 2003\GhostStartTrayApp.exe
C:\PROGRA~1\Symantec\NORTON~1\GHOSTS~2.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\WINDOWS\system32\HPConfig.exe
C:\Programmi\HPQ\Notebook Utilities\HPWirelessMgr.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\Programmi\Zone Labs\ZoneAlarm\zlclient.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Programmi\MemoRex\MemoRex.exe
C:\Programmi\Messenger\msmsgs.exe
C:\Documents and Settings\Jon\Desktop\HijackThis.exe
C:\WINDOWS\System32\wuauclt.exe
C:\WINDOWS\System32\wuauclt.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.specialgoods.info/ad/ad0411/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://desktop.presario.net/scripts/redirectors/presario/deskredir2.dll?s=consumer&ap=b201&c=1c02&lc=0410&ac
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://search.presario.net/scripts/redirectors/presario/srchredir2.dll?c=1c02&lc=0410&s=search&ap=b204
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.presario.net/scripts/redirectors/presario/srchredir2.dll?c=1c02&lc=0410&s=search&ap=b204
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.presario.net/scripts/redirectors/presario/srchredir2.dll?c=1c02&lc=0410&s=search&ap=b204
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://desktop.presario.net/scripts/redirectors/presario/deskredir2.dll?s=consumer&ap=b201&c=1c02&lc=0410&ac
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://go.compaq.com/2Q00CPT/0410/bF7.asp
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Collegamenti
R3 - URLSearchHook: transURL Class - {C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70} - C:\WINDOWS\System32\SEARCH~1.DLL
O2 - BHO: HelperObject Class - {00C6482D-C502-44C8-8409-FCE54AD9C208} - C:\Programmi\TechSmith\SnagIt 7\SnagItBHO.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programmi\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: SnagIt - {8FF5E183-ABDE-46EB-B09E-D2AAB95CABE3} - C:\Programmi\TechSmith\SnagIt 7\SnagItIEAddin.dll
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [CARPService] carpserv.exe
O4 - HKLM\..\Run: [Cpqset] C:\Programmi\HPQ\Default Settings\cpqset.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Programmi\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [PreloadApp] c:\hp\drivers\printers\photosmart\hphprld.exe c:\hp\drivers\printers\photosmart\setup.exe -d
O4 - HKLM\..\Run: [srmclean] C:\Cpqs\Scom\srmclean.exe
O4 - HKLM\..\Run: [QT4HPOT] C:\Programmi\HPQ\One-Touch\OneTouch.EXE
O4 - HKLM\..\Run: [SynTPLpr] C:\Programmi\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Programmi\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [GhostStartTrayApp] C:\Programmi\Symantec\Norton Ghost 2003\GhostStartTrayApp.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [MemoREX] "C:\Programmi\MemoRex\MemoRexStart.exe"
O4 - HKLM\..\Run: [Startup Manager Scanner] C:\Programmi\Startup Mechanic\StartupScanner.exe
O4 - HKLM\..\Run: [Zone Labs Client] C:\Programmi\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Programmi\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [Babylon Translator] C:\Programmi\Babylon\Babylon.exe
O8 - Extra context menu item: E&sporta in Microsoft Excel - res://C:\PROGRA~1\MICROS~4\Office10\EXCEL.EXE/3000
O16 - DPF: {14A3221B-1678-1982-A355-7263B1281987} - ms-its:mhtml:file://C:\foo.mht!http://82.179.166.145/x15.chm::/trs15.exe
O16 - DPF: {1F831FA9-42FC-11D4-95A6-0080AD30DCE1} (InstaFred Control) - file://C:\Programmi\AutoCAD LT 2000i Ita\InstFred.ocx
O16 - DPF: {78AF2F24-A9C3-11D3-BF8C-0060B0FCC122} (Controllo AcDc oggi) - file://C:\Programmi\AutoCAD LT 2000i Ita\AcDcToday.ocx
O16 - DPF: {8EC18CE2-D7B4-11D2-88C8-006008A717FD} (NCSView Class) - http://ww3.atlanteitaliano.it/ecwplugins/ncs.cab
O16 - DPF: {F281A59C-7B65-11D3-8617-0010830243BD} (Controllo AcPreview) - file://C:\Programmi\AutoCAD LT 2000i Ita\AcPreview.ocx
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\System32\drivers\CDAC11BA.EXE
O23 - Service: GhostStartService - Symantec Corporation - C:\PROGRA~1\Symantec\NORTON~1\GHOSTS~2.EXE
O23 - Service: HP Configuration Interface Service (HPConfig) - Hewlett-Packard - C:\WINDOWS\system32\HPConfig.exe
O23 - Service: HPWirelessMgr - Hewlett-Packard Co. - C:\Programmi\HPQ\Notebook Utilities\HPWirelessMgr.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe

grazie ancora

il problema è molto simile a quello di brucio...