Ciaom,
Ecco un altro log, dacci un'occhiata, grazie.

Logfile of HijackThis v1.97.7
Scan saved at 23:33:51, on 04/01/05
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\ARCHIVOS DE PROGRAMA\ARCHIVOS COMUNES\WINTOOLS\WTOOLSA.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\RUNDLL32.EXE
C:\ARCHIVOS DE PROGRAMA\ARCHIVOS COMUNES\WINTOOLS\WSUP.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\LOADQM.EXE
C:\PROGRAM FILES\MSN APPS\UPDATER\01.02.3000.1001\ES\MSNAPPAU.EXE
C:\ARCHIVOS DE PROGRAMA\AGNITUM\OUTPOST FIREWALL 1.0\OUTPOST.EXE
C:\WINDOWS\SYSTEM\P2P NETWORKING\P2P NETWORKING.EXE
C:\ARCHIVOS DE PROGRAMA\VBOUNCER\VIRTUALBOUNCER.EXE
C:\ARCHIVOS DE PROGRAMA\MSN MESSENGER\MSNMSGR.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\MIS DOCUMENTOS\SABADO\HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.websearch.com/ie.aspx?tb_id=50184
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.es/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.search-exe.com/nph-search.cgi?tcode=exebar1&look=sbar1_srchbtn
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.websearch.com/ie.aspx?tb_id=50184
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Vínculos
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://www.websearch.com/ie.aspx?tb_id=50184
R3 - URLSearchHook: (no name) - {87766247-311C-43B4-8499-3D5FEC94A183} - C:\ARCHIV~1\ARCHIV~1\WINTOOLS\WTOOLSB.DLL
O1 - Hosts: 69.20.16.183 auto.search.msn.com
O1 - Hosts: 69.20.16.183 search.netscape.com
O1 - Hosts: 69.20.16.183 ieautosearch
O2 - BHO: (no name) - {87766247-311C-43B4-8499-3D5FEC94A183} - C:\ARCHIV~1\ARCHIV~1\WINTOOLS\WTOOLSB.DLL
O2 - BHO: (no name) - {00041A26-7033-432C-94C7-6371DE343822} - C:\ARCHIVOS DE PROGRAMA\SE\V11\SE.DLL
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O3 - Toolbar: MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\PROGRAM FILES\MSN APPS\MSN TOOLBAR\01.02.3000.1001\ES\MSNTB.DLL
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [msnappau] "c:\program files\MSN Apps\Updater\01.02.3000.1001\es\msnappau.exe"
O4 - HKLM\..\Run: [Outpost Firewall] C:\ARCHIV~1\AGNITUM\OUTPOS~1.0\OUTPOST.EXE /waitservice
O4 - HKLM\..\Run: [P2P NETWORKING] C:\WINDOWS\SYSTEM\P2P NETWORKING\P2P NETWORKING.EXE /AUTOSTART
O4 - HKLM\..\Run: [Search-Exe] "C:\ARCHIVOS DE PROGRAMA\SE\V11\SE.EXE" /H
O4 - HKLM\..\Run: [VBouncer] C:\ARCHIV~1\VBOUNCER\VirtualBouncer.exe
O4 - HKLM\..\Run: [WinTools] C:\ARCHIV~1\ARCHIV~1\WINTOOLS\WTOOLSA.EXE
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [WinTools] C:\ARCHIV~1\ARCHIV~1\WINTOOLS\WTOOLSA.EXE
O4 - HKCU\..\Run: [MsnMsgr] "C:\Archivos de programa\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\RunServices: [MsnMsgr] "C:\Archivos de programa\MSN Messenger\MsnMsgr.Exe" /background
O8 - Extra context menu item: &Search the Web - C:\WINDOWS\Web\Ers_src.htm
O9 - Extra 'Tools' menuitem: Consola de Sun Java (HKLM)
O12 - Plugin for .mid: C:\ARCHIVOS DE PROGRAMA\NETSCAPE\PROGRAM\PLUGINS\npaudio.dll
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://www.pandasoftware.com/activescan/as5/asinst.cab
O16 - DPF: {1D6711C8-7154-40BB-8380-3DEA45B69CBF} (Web P2P Installer) -
O16 - DPF: {33564D57-0000-0010-8000-00AA00389B71} - http://download.microsoft.com/download/F/6/E/F6E491A6-77E1-4E20-9F5F-94901338C922/wmv9VCM.CAB
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://by1fd.bay1.hotmail.msn.com/resources/MsnPUpld.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab31267.cab
O16 - DPF: {00B71CFB-6864-4346-A978-C0A14556272C} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab31267.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/binary/ZIntro.cab32846.cab
O16 - DPF: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab31267.cab
O16 - DPF: {BD393C14-72AD-4790-A095-76522973D6B8} (CBreakshotControl Class) - http://messenger.zone.msn.com/binary/Bankshot.cab31267.cab

Ciao ,
esegui queste operazioni

riavvia in modalità provvisoria, leggi qui come fare
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=344&SH=N

apri HIJAC THIS ed elimina come indicato in questo articolo
http://www.aiutamici.com/software/descrizione.asp?CodSw=1175
le righe che seguono, (nel caso le righe da eliminare non compaiono in modalità provvisoria, eliminale dalla modalità normale e riavvia il computer).

==================================
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.websearch.com/ie.aspx?tb_id=50184
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
-
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://search.search-exe.com/nph-search.cgi?tcode=exebar1&look=sbar1_srchbtn
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
-
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://www.websearch.com/ie.aspx?tb_id=50184
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://search.search-exe.com/nph-search.cgi?tcode=exesrch1&look=stmpl1&fw=
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Vínculos
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://www.websearch.com/ie.aspx?tb_id=50184
R3 - URLSearchHook: (no name) - {87766247-311C-43B4-8499-3D5FEC94A183} - C:\ARCHIV~1\ARCHIV~1\WINTOOLS\WTOOLSB.DLL
O1 - Hosts: 69.20.16.183 auto.search.msn.com
O1 - Hosts: 69.20.16.183 search.netscape.com
O1 - Hosts: 69.20.16.183 ieautosearch
O2 - BHO: (no name) - {87766247-311C-43B4-8499-3D5FEC94A183} - C:\ARCHIV~1\ARCHIV~1\WINTOOLS\WTOOLSB.DLL
O2 - BHO: (no name) - {00041A26-7033-432C-94C7-6371DE343822} - C:\ARCHIVOS DE PROGRAMA\SE\V11\SE.DLL
-
O4 - HKLM\..\Run: [P2P NETWORKING] C:\WINDOWS\SYSTEM\P2P NETWORKING\P2P NETWORKING.EXE /AUTOSTART
O4 - HKLM\..\Run: [Search-Exe] "C:\ARCHIVOS DE PROGRAMA\SE\V11\SE.EXE" /H
O4 - HKLM\..\Run: [VBouncer] C:\ARCHIV~1\VBOUNCER\VirtualBouncer.exe
O4 - HKLM\..\Run: [WinTools] C:\ARCHIV~1\ARCHIV~1\WINTOOLS\WTOOLSA.EXE
-
O4 - HKLM\..\RunServices: [WinTools] C:\ARCHIV~1\ARCHIV~1\WINTOOLS\WTOOLSA.EXE
-
O16 - DPF: {1D6711C8-7154-40BB-8380-3DEA45B69CBF} (Web P2P Installer) -
==================================

Con la funzione TROVA di Windows, cerca ed elimina questi file,

==================================
WTOOLSA.EXE
WSUP.EXE
P2P NETWORKING.EXE
VIRTUALBOUNCER.EXE
WTOOLSB.DLL
SE.DLL
NETWORKING.EXE
SE.EXE
==================================

al termine utilizza i programma AD-AWARE e SPYBOT indicati in questo articolo
http://www.aiutamici.com/software/view.asp?tipo=home&CodSw=388&SH=N

sempre in modalità provvisoria fai una scansione Antivirus.

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Collaboratore Aiutamici