Uahpfqzx.dll infecté non réparable

esselemou ele men ittebea elhouda,
mon systéme detecte un virus dans c:\windows\system32\uahpfqzx.dll. ce fichier est non réparable, non accessible, non éfaçable; voici le rapport HijackThis
log:
Logfile of random's system information tool 1.06 (written by random/random)
Run by Admins at 2009-07-31 11:00:28
Microsoft Windows XP Professionnel Service Pack 2
System drive C: has 16 GB (22%) free of 70 GB
Total RAM: 511 MB (36% free)

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 11:00:30, on 31/07/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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\spoolsv.exe
C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe
C:\WINDOWS\SYSTEM32\DNTUS26.EXE
C:\Program Files\Fichiers communs\LightScribe\LSSrvc.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\PDF Complete\pdfsvc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\WISPTIS.EXE
C:\Program Files\RegCleaner\RegCleanr.exe
C:\Program Files\RegCleaner\RegCleanr.exe
C:\Program Files\Internet Download Manager\IEMonitor.exe
C:\Program Files\Internet Download Manager\IDMan.exe
C:\Program Files\GNS3\Dynamips\dynamips-wxp.exe
C:\WINDOWS\explorer.exe
C:\WINDOWS\system32\cmd.exe
C:\WINDOWS\system32\ntvdm.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Documents and Settings\Administrateur\Bureau\RSIT.exe
C:\Documents and Settings\Administrateur\Bureau\Admins.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.algerieinfo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.google.fr/?gws_rd=ssl
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = https://www8.hp.com/fr/fr/home.html
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 172.16.1.19:8080
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: IDM Helper - {0055C089-8582-441B-A0BF-17B458C2A3A8} - C:\Program Files\Internet Download Manager\IDMIECC.dll
O4 - HKLM\..\Run: [AVP] "C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MediaDICO36] C:\Program Files\Micro Application\36 Dictionnaires et Recueils de Correspondance\LanceMediaDICO36.exe Lancement
O4 - HKCU\..\Run: [IDMan] C:\Program Files\Internet Download Manager\IDMan.exe /onboot
O4 - HKCU\..\Run: [HijackThis startup scan] C:\Documents and Settings\Administrateur\Bureau\HijackThis.exe /startupscan
O8 - Extra context menu item: &Traduire à partir de l'anglais - res://C:\Program Files\Google\GoogleToolbar1.dll/cmwordtrans.html
O8 - Extra context menu item: Add to Anti-Banner - C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\ie_banner_deny.htm
O8 - Extra context menu item: Download all links with IDM - C:\Program Files\Internet Download Manager\IEGetAll.htm
O8 - Extra context menu item: Download FLV video content with IDM - C:\Program Files\Internet Download Manager\IEGetVL.htm
O8 - Extra context menu item: Download with IDM - C:\Program Files\Internet Download Manager\IEExt.htm
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Pages liées - res://C:\Program Files\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Pages similaires - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: Recherche &Google - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: Version de la page actuelle disponible dans le cache Google - res://C:\Program Files\Google\GoogleToolbar1.dll/cmcache.html
O9 - Extra button: Web Anti-Virus statistics - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\SCIEPlgn.dll
O14 - IERESET.INF: START_PAGE_URL=https://www.google.fr/?gws_rd=ssl
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = mdnet.com
O17 - HKLM\Software\..\Telephony: DomainName = mdnet.com
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = mdnet.com
O20 - AppInit_DLLs: C:\PROGRA~1\KASPER~1\KASPER~1.0\adialhk.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: Kaspersky Internet Security 7.0 (AVP) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Internet Security 7.0\avp.exe
O23 - Service: DameWare NT Utilities 2.6 (DNTUS26) - DameWare Development LLC - C:\WINDOWS\SYSTEM32\DNTUS26.EXE
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: HP WMI Interface (hpqwmi) - Hewlett-Packard Development Company, L.P. - C:\Program Files\HPQ\Shared\hpqwmi.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Fichiers communs\LightScribe\LSSrvc.exe
O23 - Service: PDF Document Manager (pdfcDispatcher) - PDF Complete Inc - C:\Program Files\PDF Complete\pdfsvc.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - CACE Technologies - C:\Program Files\WinPcap\rpcapd.exe
O23 - Service: VNC Server (winvnc) - Constantin Kaplinsky - C:\WINDOWS\Pointdev\VNC\WinVNC.exe