Que faut-il que je fasse ? (virus)

Bon j'ai pas mal de problèmes...

Tout d'abord quand je tape une adresse dans la barre d'adresse je tombe toujours sur le truc "nowfind.net".

Ensuite depuis peu j'ai toujours des messages me disant que mon ordi est infecté mais ceux-ci sont toujours différents... Au début c'était un truc du genre PSGuard.

Et depuis mon ordi fait des trucs plutot bizarres.

J'ai regardé sur internet et j'ai vu que je pouvais régler ça avec Hiajckthis.

Et voilà ce que j'obtiens :

Logfile of HijackThis v1.99.1
Scan saved at 22:46:21, on 02/08/2005
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

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\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\FICHIE~1\WinTools\WToolsA.exe
C:\WINDOWS\System32\rundll32.exe
C:\Program Files\eDonkey2000\eDonkey2000.exe
C:\Program Files\MessengerPlus! 3\MsgPlus.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\rundll32.exe
C:\WINDOWS\System32\intell32.exe
C:\Program Files\Adobe\Acrobat 5.0\Distillr\AcroTray.exe
C:\Program Files\SAGEM Wi-Fi USB 802.11g\WLANUTL.exe
C:\PROGRA~1\FICHIE~1\WinTools\WSup.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Hiajckthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer,Search = http://103.nowfind.biz/pps.php
R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL = http://103.nowfind.biz/pps.php
R1 - HKLM\Software\Microsoft\Internet Explorer,Search = http://103.nowfind.biz/pps.php
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://103.nowfind.biz/pps.php
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://103.nowfind.biz/pps.php
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\Cote\LOCALS~1\Temp\se.dll/space.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://103.nowfind.biz/pps.php
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://www.websearch.com/ie.aspx?tb_id=50193
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\Cote\LOCALS~1\Temp\se.dll/space.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://103.nowfind.biz/pps.php
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: (no name) - {87766247-311C-43B4-8499-3D5FEC94A183} - C:\PROGRA~1\FICHIE~1\WinTools\WToolsB.dll
O1 - Hosts: auto.search.msn.com 127.0.0.1
O2 - BHO: myBar BHO - {0494D0D1-F8E0-41ad-92A3-14154ECE70AC} - C:\Program Files\MyWay\myBar\1.bin\MYBAR.DLL
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Acrobat\ActiveX\AcroIEHelper.ocx
O2 - BHO: URLLink Class - {4A2AACF3-ADF6-11D5-98A9-00E018981B9E} - C:\Program Files\NewDotNet\newdotnet6_38.dll
O2 - BHO: (no name) - {729D59A1-D012-429A-83E4-BF6C9CCA6161} - C:\WINDOWS\System32\ehpb.dll
O2 - BHO: (no name) - {87766247-311C-43B4-8499-3D5FEC94A183} - C:\PROGRA~1\FICHIE~1\WinTools\WToolsB.dll
O3 - Toolbar: My &Search Bar - {0494D0D9-F8E0-41ad-92A3-14154ECE70AC} - C:\Program Files\MyWay\myBar\1.bin\MYBAR.DLL
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [WinTools] C:\PROGRA~1\FICHIE~1\WinTools\WToolsA.exe
O4 - HKLM\..\Run: [New.net Startup] rundll32 C:\PROGRA~1\NEWDOT~1\NEWDOT~2.DLL,NewDotNetStartup -s
O4 - HKLM\..\Run: [eDonkey2000] C:\Program Files\eDonkey2000\eDonkey2000.exe -t
O4 - HKLM\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [AltnetPointsManager] c:\program files\altnet\points manager\points manager.exe -s
O4 - HKLM\..\Run: [sp] rundll32 C:\DOCUME~1\Cote\LOCALS~1\Temp\se.dll,DllInstall
O4 - HKLM\..\Run: [intell32.exe] C:\WINDOWS\System32\intell32.exe
O4 - HKLM\..\Run: [PSGuard spyware remover] C:\Program Files\PSGuard\PSGuard.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - Global Startup: Acrobat Assistant.lnk = C:\Program Files\Adobe\Acrobat 5.0\Distillr\AcroTray.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: Sagem - Utilitaire réseau pour Clé USB Wi-Fi 802.11g.lnk = ?
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O10 - Hijacked Internet access by New.Net
O13 - DefaultPrefix: http://103.nowfind.biz/gall.php?url=
O13 - WWW Prefix: http://103.nowfind.biz/gall.php?url=
O13 - Home Prefix: http://103.nowfind.biz/gall.php?url=
O13 - Mosaic Prefix: http://103.nowfind.biz/gall.php?url=
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab312...
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClie...
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O18 - Filter: text/html - {861AF051-8140-44FE-8F4B-2D0F60F3A5E1} - C:\WINDOWS\System32\ehpb.dll
O18 - Filter: text/plain - {861AF051-8140-44FE-8F4B-2D0F60F3A5E1} - C:\WINDOWS\System32\ehpb.dll
O20 - AppInit_DLLs: MsgPlusLoader.dll
O20 - Winlogon Notify: style2 - C:\WINDOWS\q48649664_disk.dll

et maintenant je sais plus quoi faire...

Merci de votre aide même à une heure si tardive...