Bad Request (Invalid Header Name)

Bonjour,
J ai récement eu un hackage ( j ai posté un message a ce sujet d ailleurs ) http://www.infos-du-net.com/forum/ [...] lemes-help ( toujours pas résolu )

Maintenant souhaitant changé mon mot de pass car l ayant oublié , quand je rentre mes informations dans hotmail avec ma question secrete je recois une page erreur tel que je vous up quelques screens sur imageshack :
1. http://img340.imageshack.us/i/msn1u.png/
2. http://img530.imageshack.us/i/msn2.png/
3. ou Je recois aussi une erreur avec page blanche et écris en haut Bad Request (Invalid Header Name)

voici mon log hijackthis:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:16:07, on 31/10/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16735)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\DOCUME~1\chauvin\LOCALS~1\Temp\b.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\MOM.exe
C:\WINDOWS\msa.exe
C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe
C:\WINDOWS\tsnpstd3 .exe
C:\Program Files\Hama\Hama Webcam Suite\Magic-i Visual Effects\Magic-i Visual Effects.exe
C:\Program Files\Fichiers communs\ArcSoft\Connection Service\Bin\ACService.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\CDBurnerXP\NMSAccessU.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Uniblue\RegistryBooster 2010\registrybooster.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\ccc.exe
C:\Program Files\Windows Live\Contacts\wlcomm.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\PROGRA~1\MOZILL~1\FIREFOX.EXE
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\DOCUME~1\chauvin\LOCALS~1\Temp\ctv38205.exe
C:\Program Files\Java\jre6\bin\jqsnotify.exe
C:\DOCUME~1\chauvin\LOCALS~1\Temp\b .exe
C:\Documents and Settings\chauvin\Bureau\hijackthis-2.0.2.exe
C:\DOCUME~1\chauvin\LOCALS~1\Temp\hijackthis-2.0.2.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = www.google.com
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 =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://login.live.com/ppsecure/sha1auth.srf?lc=1036
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,C:\Documents and Settings\chauvin\crrv.exe \s
O2 - BHO: XML module - {500BCA15-57A7-4eaf-8143-8C619470B13D} - C:\WINDOWS\system32\msxml71.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Fichiers communs\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: StatusBarPane - {CCB5551D-8594-4999-85F9-1E3EABCB95AC} - C:\Program Files\Desktop Defender 2010\IEAddon.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe"
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [tsnpstd