Virus ? Spiware secure ?

Bonjour,
j'ai fait un scan HiJackThis pour une quatrième machine présentant des problèmes (notamment de gros pbs de lenteur).
Dans le cas ou il y aurait des problèmes par rapport à ce log pouvez vous m'indiquer la marche à suivre ainsi que les éléments du log qui mettent se problème en lumière.
Merci.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 14:15:47, on 18/09/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16640)
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Cisco\Cisco AnyConnect VPN Client\vpnagent.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\LogMeIn\x86\RaMaint.exe
C:\Program Files\LogMeIn\x86\LogMeIn.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\LogMeIn\x86\LMIGuardian.exe
C:\Program Files\Fichiers communs\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\System32\hkcmd.exe
C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe
C:\Program Files\LogMeIn\x86\LogMeInSystray.exe
C:\OfficeScan NT\pccntmon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\System32\snmp.exe
C:\Program Files\LogMeIn\x86\LMIGuardian.exe
C:\OfficeScan NT\tmlisten.exe
C:\OfficeScan NT\ntrtscan.exe
C:\OfficeScan NT\OfcPfwSvc.exe
C:\WINDOWS\TEMP\ZMA51E.EXE
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Java\jre1.6.0_05\bin\jucheck.exe
C:\Documents and Settings\cblanchet\Bureau\HiJackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://www.bing.com/?toHttps=1&redig=5FC791212101479BAFBE1A679848B1AF
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.msn.com/fr-fr/?ocid=iehp
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://runonce.msn.com/runonce3.aspx
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Fichiers communs\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [Adobe Photo Downloader] "C:\Program Files\Adobe\Photoshop Album Edition Découverte\3.2\Apps\apdproxy.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe"
O4 - HKLM\..\Run: [Synchronization Manager] %SystemRoot%\system32\mobsync.exe /logon
O4 - HKLM\..\Run: [AeXAgentLogon] C:\Program Files\Altiris\Altiris Agent\AeXAgentActivate.exe /logon
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [LogMeIn GUI] "C:\Program Files\LogMeIn\x86\LogMeInSystray.exe"
O4 - HKLM\..\Run: [OfficeScanNT Monitor] "C:\OfficeScan NT\pccntmon.exe" -HideWindow
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe (User 'Default user')
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Console Java (Sun) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra button: Recherche - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {00134F72-5284-44F7-95A8-52A619F70751} (ObjWinNTCheck Class) - http://172.16.12.13/officescan/console/ClientInstall/WinNTChk.cab
O16 - DPF: {08D75BB0-D2B5-11D1-88FC-0080C859833B} (OfficeScan Corp Edition Web-Deployment SetupINICtrl Class) - http://172.16.12.13/officescan/console/ClientInstall/setupini.cab
O16 - DPF: {08D75BC1-D2B5-11D1-88FC-0080C859833B} (OfficeScan Corp Edition Web-Deployment SetupCtrl Class) - http://172.16.12.13/officescan/console/ClientInstall/setup.cab
O16 - DPF: {35C3D91E-401A-4E45-88A5-F3B32CD72DF4} (Encrypt Class) - http://plsi04/officescan/console/html/AtxEnc.cab
O16 - DPF: {55963676-2F5E-4BAF-AC28-CF26AA587566} (Cisco AnyConnect VPN Client Web Control) - https://90.80.29.243/CACHE/stc/2/binaries/vpnweb.cab
O16 - DPF: {5EFE8CB1-D095-11D1-88FC-0080C859833B} (OfficeScan Corp Edition Web-Deployment ObjRemoveCtrl Class) - http://172.16.12.13/officescan/console/ClientInstall/RemoveCtrl.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/...
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O16 - DPF: {FD0B6769-6490-4A91-AA0A-B5AE0DC75AC9} (Performance Viewer Activex Control) - https://secure.logmein.com/activex/ractrl.cab?lmi=100
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = GIRAUDLOGISTICS.EUROPE
O17 - HKLM\Software\..\Telephony: DomainName = GIRAUDLOGISTICS.EUROPE
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = GIRAUDLOGISTICS.EUROPE
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\FICHIE~1\Skype\SKYPE4~1.DLL
O20 - AppInit_DLLs:
O23 - Service: Altiris Agent (AeXNSClient) - Unknown owner - C:\Program Files\Altiris\Altiris Agent\AeXNSAgent.exe (file missing)
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Fichiers communs\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: LogMeIn Maintenance Service (LMIMaint) - LogMeIn, Inc. - C:\Program Files\LogMeIn\x86\RaMaint.exe
O23 - Service: LogMeIn - LogMeIn, Inc. - C:\Program Files\LogMeIn\x86\LogMeIn.exe
O23 - Service: OfficeScanNT RealTime Scan (ntrtscan) - Trend Micro Inc. - C:\OfficeScan NT\ntrtscan.exe
O23 - Service: Pare-feu OfficeScanNT (OfcPfwSvc) - Trend Micro Inc. - C:\OfficeScan NT\OfcPfwSvc.exe
O23 - Service: Remote Packet Capture Protocol v.0 (experimental) (rpcapd) - Unknown owner - C:\Program Files\WinPcap\rpcapd.exe
O23 - Service: OfficeScanNT Listener (tmlisten) - Trend Micro Inc. - C:\OfficeScan NT\tmlisten.exe
O23 - Service: Cisco AnyConnect VPN Agent (vpnagent) - Cisco Systems, Inc. - C:\Program Files\Cisco\Cisco AnyConnect VPN Client\vpnagent.exe