Avast détecte vbs malware-gen

Bonjour et bonnes fêtes à toutes et à tous,

avas m'a détecté un malware nommé vbs malware-gen dans le rép temp contenu dans documents and settings\local settings. j'avais ce message d'avast à chaque démarrage de mon pc. j'ai désinstallé avast et j'ai installé antivir et j'ai fait un scan complet en mode sans échec qui a duré plus de deux heures

voici le résultat du scan antivir : (quelqu'un aurait il la gentillesse de me dire si mon pc est encore infecté ?)

AntiVir PersonalEdition Classic
Report file date: vendredi 28 décembre 2007 23:18

Scanning for 994689 virus strains and unwanted programs.

Licensed to: Avira AntiVir PersonalEdition Classic
Serial number: 0000149996-ADJIE-0001
Platform: Windows XP
Windows version: (Service Pack 2) [5.1.2600]
Username: Karim Bellahcene
Computer name: ACER-BELLAHCENE

Version information:
BUILD.DAT : 270 15603 Bytes 19/09/2007 13:32:00
AVSCAN.EXE : 7.0.6.1 290856 Bytes 23/08/2007 13:16:30
AVSCAN.DLL : 7.0.6.0 49192 Bytes 16/08/2007 12:23:52
LUKE.DLL : 7.0.5.3 147496 Bytes 14/08/2007 15:32:48
LUKERES.DLL : 7.0.6.1 10280 Bytes 21/08/2007 12:35:22
ANTIVIR0.VDF : 6.40.0.0 11030528 Bytes 18/07/2007 14:27:16
ANTIVIR1.VDF : 7.0.1.95 3367424 Bytes 14/12/2007 22:12:06
ANTIVIR2.VDF : 7.0.1.170 311296 Bytes 28/12/2007 22:12:06
ANTIVIR3.VDF : 7.0.1.173 4608 Bytes 28/12/2007 22:12:06
AVEWIN32.DLL : 7.6.0.46 3084800 Bytes 28/12/2007 22:12:06
AVWINLL.DLL : 1.0.0.7 14376 Bytes 26/02/2007 10:36:28
AVPREF.DLL : 7.0.2.2 25640 Bytes 18/07/2007 07:39:18
AVREP.DLL : 7.0.0.1 155688 Bytes 16/04/2007 13:16:24
AVPACK32.DLL : 7.6.0.2 360488 Bytes 28/12/2007 22:12:06
AVREG.DLL : 7.0.1.6 30760 Bytes 18/07/2007 07:17:08
AVARKT.DLL : 1.0.0.20 278568 Bytes 28/08/2007 12:26:34
AVEVTLOG.DLL : 7.0.0.20 86056 Bytes 18/07/2007 07:10:20
NETNT.DLL : 7.0.0.0 7720 Bytes 08/03/2007 11:09:44
RCIMAGE.DLL : 7.0.1.30 2342952 Bytes 07/08/2007 12:38:14
RCTEXT.DLL : 7.0.62.0 86056 Bytes 21/08/2007 12:50:38
SQLITE3.DLL : 3.3.17.1 339968 Bytes 23/07/2007 09:37:22

Configuration settings for the scan:
Jobname..........................: Complete system scan
Configuration file...............: c:\program files\avira\antivir personaledition classic\sysscan.avp
Logging..........................: low
Primary action...................: interactive
Secondary action.................: ignore
Scan master boot sector..........: off
Scan boot sector.................: on
Boot sectors.....................: D:,
Scan memory......................: on
Process scan.....................: on
Scan registry....................: on
Search for rootkits..............: off
Scan all files...................: Intelligent file selection
Scan archives....................: on
Recursion depth..................: 20
Smart extensions.................: on
Macro heuristic..................: on
File heuristic...................: medium

Start of the scan: vendredi 28 décembre 2007 23:18

The scan of running processes will be started
Scan process 'avscan.exe' - '1' Module(s) have been scanned
Scan process 'avcenter.exe' - '1' Module(s) have been scanned
Scan process 'Explorer.EXE' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'lsass.exe' - '1' Module(s) have been scanned
Scan process 'services.exe' - '1' Module(s) have been scanned
Scan process 'winlogon.exe' - '1' Module(s) have been scanned
Scan process 'csrss.exe' - '1' Module(s) have been scanned
Scan process 'smss.exe' - '1' Module(s) have been scanned
11 processes with 11 modules were scanned

Start scanning boot sectors:
Boot sector 'C:\'
[NOTE] No virus was found!
Boot sector 'D:\'
[NOTE] No virus was found!

Starting to scan the registry.
C:\WINDOWS\system32\WinUpdater.exe
[DETECTION] Contains detection pattern of the worm WORM/SdBot3.UXM
[INFO] The file was moved to '47e376bf.qua'!
C:\WINDOWS\system32\WinUpdater.exe
[DETECTION] Contains detection pattern of the worm WORM/SdBot3.UXM
C:\WINDOWS\system32\WinUpdater.exe
[WARNING] The file could not be opened!

The registry was scanned ( '52' files ).

Starting the file scan:

Begin scan in 'C:\' <ACER>
C:\pagefile.sys
[WARNING] The file could not be opened!
C:\WINDOWS\system32\drivers\atapi.sys
[WARNING] The file could not be opened!
C:\WINDOWS\system32\drivers\sptd.sys
[WARNING] The file could not be opened!
C:\Documents and Settings\Karim Bellahcene\sjuipp.exe
[DETECTION] Is the Trojan horse TR/Crypt.XPACK.Gen
[INFO] The file was moved to '47ea80f3.qua'!
C:\Documents and Settings\Karim Bellahcene\cledrf.exe
[DETECTION] Is the Trojan horse TR/Crypt.XPACK.Gen
[INFO] The file was moved to '47da8100.qua'!
C:\Documents and Settings\Karim Bellahcene\cffunf.exe
[DETECTION] Is the Trojan horse TR/Crypt.XPACK.Gen
[INFO] The file was moved to '47db8100.qua'!
C:\Program Files\Ashampoo\Ashampoo MP3 AudioCenter\Ashampoo.exe
[DETECTION] Is the Trojan horse TR/Crypt.XDR.Gen
[INFO] The file was moved to '47dd8941.qua'!
C:\System Volume Information\_restore{FE9DB679-8B9F-4569-9471-BFCEFDF23881}\RP2\A0000354.exe
[DETECTION] Contains detection pattern of the worm WORM/SdBot3.UXM
[INFO] The file was moved to '47a58a5a.qua'!
C:\System Volume Information\_restore{FE9DB679-8B9F-4569-9471-BFCEFDF23881}\RP2\A0000355.exe
[DETECTION] Is the Trojan horse TR/Crypt.XPACK.Gen
[INFO] The file was moved to '4631d51b.qua'!
C:\System Volume Information\_restore{FE9DB679-8B9F-4569-9471-BFCEFDF23881}\RP2\A0000356.exe
[DETECTION] Is the Trojan horse TR/Crypt.XPACK.Gen
[INFO] The file was moved to '47a58a5b.qua'!
C:\System Volume Information\_restore{FE9DB679-8B9F-4569-9471-BFCEFDF23881}\RP2\A0000357.exe
[DETECTION] Is the Trojan horse TR/Crypt.XPACK.Gen
[INFO] The file was moved to '4631d51c.qua'!
C:\System Volume Information\_restore{FE9DB679-8B9F-4569-9471-BFCEFDF23881}\RP2\A0000358.exe
[DETECTION] Is the Trojan horse TR/Crypt.XDR.Gen
[INFO] The file was moved to '47a58a5d.qua'!
Begin scan in 'D:\' <ACERDATA>

End of the scan: samedi 29 décembre 2007 01:20
Used time: 2:01:58 min

The scan has been done completely.

6534 Scanning directories
429835 Files were scanned
10 viruses and/or unwanted programs were found
0 Files were classified as suspicious:
0 files were deleted
0 files were repaired
10 files were moved to quarantine
0 files were renamed
4 Files cannot be scanned
429825 Files not concerned
9206 Archives were scanned
4 Warnings
17 Notes