voici le "report" que j'ai eu a la fin du scan avec antivir:
AntiVir PersonalEdition Classic
Report file date: jeudi 20 mars 2008 10:06
Scanning for 1159861 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: SYSTEM
Computer name: USER
Version information:
BUILD.DAT : 270 15603 Bytes 19/09/2007 13:32:00
AVSCAN.EXE : 7.0.6.1 290856 Bytes 23/08/2007 14:16:29
AVSCAN.DLL : 7.0.6.0 49192 Bytes 16/08/2007 13:23:51
LUKE.DLL : 7.0.5.3 147496 Bytes 14/08/2007 16:32:47
LUKERES.DLL : 7.0.6.1 10280 Bytes 21/08/2007 13:35:20
ANTIVIR0.VDF : 6.40.0.0 11030528 Bytes 18/07/2007 12:34:48
ANTIVIR1.VDF : 7.0.3.2 5447168 Bytes 07/03/2008 14:16:43
ANTIVIR2.VDF : 7.0.3.3 2048 Bytes 07/03/2008 14:16:43
ANTIVIR3.VDF : 7.0.3.59 324608 Bytes 20/03/2008 10:06:26
AVEWIN32.DLL : 7.6.0.75 3334656 Bytes 18/03/2008 22:24:53
AVWINLL.DLL : 1.0.0.7 14376 Bytes 26/02/2007 11:36:26
AVPREF.DLL : 7.0.2.2 25640 Bytes 18/07/2007 08:39:17
AVREP.DLL : 7.0.0.1 155688 Bytes 16/04/2007 14:16:24
AVPACK32.DLL : 7.6.0.3 360488 Bytes 15/01/2008 20:45:05
AVREG.DLL : 7.0.1.6 30760 Bytes 18/07/2007 08:17:06
AVARKT.DLL : 1.0.0.20 278568 Bytes 28/08/2007 13:26:33
AVEVTLOG.DLL : 7.0.0.20 86056 Bytes 18/07/2007 08:10:18
NETNT.DLL : 7.0.0.0 7720 Bytes 08/03/2007 12:09:42
RCIMAGE.DLL : 7.0.1.30 2342952 Bytes 07/08/2007 13:38:13
RCTEXT.DLL : 7.0.62.0 86056 Bytes 21/08/2007 13:50:37
SQLITE3.DLL : 3.3.17.1 339968 Bytes 23/07/2007 10:37:21
Configuration settings for the scan:
Jobname..........................: Complete system scan
Configuration file...............: c:\program files\avira\antivir personaledition classic\sysscan.avp
Logging..........................: low
Primary action...................: repair
Secondary action.................: delete
Scan master boot sector..........: on
Scan boot sector.................: on
Boot sectors.....................: E:,
Scan memory......................: on
Process scan.....................: on
Scan registry....................: on
Search for rootkits..............: on
Scan all files...................: All files
Scan archives....................: on
Recursion depth..................: 20
Smart extensions.................: on
Deviating archive types..........: +BSD Mailbox, +Netscape/Mozilla Mailbox, +Eudora Mailbox, +Squid cache, +Pegasus Mailbox, +MS Outlook Mailbox,
Macro heuristic..................: on
File heuristic...................: high
Start of the scan: jeudi 20 mars 2008 10:06
Starting search for hidden objects.
'76335' objects were checked, '0' hidden objects were found.
The scan of running processes will be started
Scan process 'avscan.exe' - '1' Module(s) have been scanned
Scan process 'wuauclt.exe' - '1' Module(s) have been scanned
Scan process 'usnsvc.exe' - '1' Module(s) have been scanned
Scan process 'wuauclt.exe' - '1' Module(s) have been scanned
Scan process 'alg.exe' - '1' Module(s) have been scanned
Scan process 'dslmon.exe' - '1' Module(s) have been scanned
Scan process 'SuperCopier2.exe' - '1' Module(s) have been scanned
Scan process 'ctfmon.exe' - '1' Module(s) have been scanned
Scan process 'MemOptimizer.exe' - '1' Module(s) have been scanned
Scan process 'avgnt.exe' - '1' Module(s) have been scanned
Scan process 'rundll32.exe' - '1' Module(s) have been scanned
Scan process 'avgas.exe' - '1' Module(s) have been scanned
Scan process 'VM305_STI.EXE' - '1' Module(s) have been scanned
Scan process 'searchindexer.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'PAStiSvc.exe' - '1' Module(s) have been scanned
Scan process 'nvsvc32.exe' - '1' Module(s) have been scanned
Scan process 'guard.exe' - '0' Module(s) have been scanned
Scan process 'AppleMobileDeviceService.exe' - '1' Module(s) have been scanned
Scan process 'sched.exe' - '1' Module(s) have been scanned
Scan process 'explorer.exe' - '1' Module(s) have been scanned
Scan process 'avguard.exe' - '1' Module(s) have been scanned
Scan process 'spoolsv.exe' - '1' Module(s) have been scanned
Scan process 'LEXPPS.EXE' - '1' Module(s) have been scanned
Scan process 'LEXBCES.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 '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
34 processes with 34 modules were scanned
Starting master boot sector scan:
Master boot sector HD0
[NOTE] No virus was found!
Start scanning boot sectors:
Boot sector 'C:\'
[NOTE] No virus was found!
Boot sector 'D:\'
[NOTE] No virus was found!
Boot sector 'E:\'
[NOTE] No virus was found!
Starting to scan the registry.
The registry was scanned ( '28' files ).
Starting the file scan:
Begin scan in 'C:\'
C:\pagefile.sys
[WARNING] The file could not be opened!
Begin scan in 'D:\'
End of the scan: jeudi 20 mars 2008 11:29
Used time: 1:23:00 min
The scan has been canceled!
17326 Scanning directories
319634 Files were scanned
0 viruses and/or unwanted programs were found
0 Files were classified as suspicious:
0 files were deleted
0 files were repaired
0 files were moved to quarantine
0 files were renamed
1 Files cannot be scanned
319634 Files not concerned
2619 Archives were scanned
1 Warnings
0 Notes
76335 Objects were scanned with rootkit scan
0 Hidden objects were found
merci 
Cette ligne est signalé comme néfaste. Je fais une recherche pour savoir quoi.
je risque quelque chose ou pas