Coment supprimer un virus Win32 alureon-ce

Bonjour,

Lors d'une analyse avast m'a détecté un virus nommé Win32 ALUREON-CE dans mon disque dur.
Par contre il m'est impossible de le supprimer ni de le mettre en quarantaine.
voici l'analyse d'avast :
22/07/2009 15:56:28 1248270988 SYSTEM 1904 Function setifaceUpdatePackages() has failed. Return code is 0x20000004, dwRes is 20000004.
22/07/2009 15:56:29 1248270989 SYSTEM 1904 An error has occured while attempting to update. Please check the logs.
22/07/2009 20:47:29 1248288452 SYSTEM 1820 Function setifaceUpdatePackages() has failed. Return code is 0x20000004, dwRes is 20000004.
22/07/2009 20:48:44 1248288524 SYSTEM 1820 An error has occured while attempting to update. Please check the logs.
23/07/2009 18:37:05 1248367025 Aurélien 11848 Sign of "Win32:Alureon-CE [Rtk]" has been found in "\\?\globalroot\systemroot\system32\hjgruiqnikecrn.dll" file.
23/07/2009 18:37:33 1248367053 Aurélien 11848 Sign of "Win32:VB-MDW [Drp]" has been found in "c:\users\aurélien\appdata\roaming\sdra64.exe" file.
23/07/2009 18:38:03 1248367083 Aurélien 11848 Sign of "Win32:VB-MDW [Drp]" has been found in "c:\windows\system32\sdra64.exe" file.
26/07/2009 23:16:53 1248643013 Aurélien 9464 Sign of "Win32:Alureon-CE [Rtk]" has been found in "\\?\globalroot\systemroot\system32\hjgruiqnikecrn.dll" file.
26/07/2009 23:22:45 1248643365 Aurélien 5064 Sign of "Win32:Alureon-CE [Rtk]" has been found in "\\?\globalroot\systemroot\system32\hjgruiqnikecrn.dll" file.
26/07/2009 23:24:27 1248643467 Aurélien 7044 Sign of "Win32:Alureon-CE [Rtk]" has been found in "\\?\globalroot\systemroot\system32\hjgruiqnikecrn.dll" file.
27/07/2009 17:39:47 1248709187 Aurélien 4656 Sign of "Win32:Alureon-CE [Rtk]" has been found in "\\?\globalroot\systemroot\system32\hjgruiqnikecrn.dll" file.

J'ai alors lancé une analyse avec Malwarebytes. Il les détecte aussi. Il me dit qui les a supprimé mais le virus est toujours sur le disque dur d'aprés avast.
Quelqu'un peut-il me venir en aide svp?????????????

ci-dessous le rapport de Malwarebytes
Malwarebytes' Anti-Malware 1.38
Version de la base de données: 2402
Windows 6.0.6000

27/07/2009 17:31:45
mbam-log-2009-07-27 (17-31-45).txt

Type de recherche: Examen complet (C:\|)
Eléments examinés: 290342
Temps écoulé: 1 hour(s), 15 minute(s), 2 second(s)

Processus mémoire infecté(s): 0
Module(s) mémoire infecté(s): 0
Clé(s) du Registre infectée(s): 5
Valeur(s) du Registre infectée(s): 1
Elément(s) de données du Registre infecté(s): 1
Dossier(s) infecté(s): 1
Fichier(s) infecté(s): 3

Processus mémoire infecté(s):
(Aucun élément nuisible détecté)

Module(s) mémoire infecté(s):
(Aucun élément nuisible détecté)

Clé(s) du Registre infectée(s):
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{19127ad2-394b-70f5-c650-b97867baa1f7} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{19127ad2-394b-70f5-c650-b97867baa1f7} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{43bf8cd1-c5d5-2230-7bb2-98f22c2b7dc6} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{19127ad2-394b-70f5-c650-b97867baa1f7} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{43bf8cd1-c5d5-2230-7bb2-98f22c2b7dc6} (Backdoor.Bot) -> Quarantined and deleted successfully.

Valeur(s) du Registre infectée(s):
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Network\UID (Malware.Trace) -> Quarantined and deleted successfully.

Elément(s) de données du Registre infecté(s):
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Dossier(s) infecté(s):
C:\Windows\System32\lowsec (Stolen.data) -> Quarantined and deleted successfully.

Fichier(s) infecté(s):
c:\Windows\System32\lowsec\local.ds (Stolen.data) -> Quarantined and deleted successfully.
c:\Windows\System32\lowsec\user.ds (Stolen.data) -> Quarantined and deleted successfully.
C:\Windows\System32\drivers\str.sys (Rootkit.Agent) -> Quarantined and deleted successfully.

De l'aide svp???