S'agit-il de rootkits dangereux?

Bonjour,
Voici les fichiers trouvés par AVG anti-rootkit, sachant que je viens tout juste de l'installer.. Sont ils dangereux?
Par ailleurs, je viens d'installer le firewall zone alarm et je reçois le msg que qqun essaie d'entrer dans mon ordinateur, or il s'agit toujours du même IP.. qui commence par 86.* c'est bien un particulier non ? dans ce cas ça m'a l'air assez flippant... Pouvez-vous m'aider ?

C:\WINDOWS.0\system32\jjsudqbrkn.exe,Hidden application file
C:\WINDOWS.0\Prefetch\JJSUDQBRKN.EXE-26800E88.pf,Hidden File
C:\WINDOWS.0\system32\jjsudqbrkn.dat,Hidden File
C:\WINDOWS.0\system32\jjsudqbrkn.exe,Hidden File
C:\WINDOWS.0\system32\jjsudqbrkn_nav.dat,Hidden File
C:\WINDOWS.0\system32\jjsudqbrkn_navps.dat,Hidden File

PS voici mon scan de HTJ version FR :

Logfile of HijackThis v1.99.1
Scan saved at 18:00:28, on 24/03/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS.0\System32\smss.exe
C:\WINDOWS.0\system32\winlogon.exe
C:\WINDOWS.0\system32\services.exe
C:\WINDOWS.0\system32\lsass.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\System32\svchost.exe
C:\WINDOWS.0\system32\ZoneLabs\vsmon.exe
C:\WINDOWS.0\Explorer.EXE
C:\WINDOWS.0\system32\ctfmon.exe
C:\WINDOWS.0\system32\spoolsv.exe
C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\Program Files\Executive Software\DiskeeperLite\DKService.exe
C:\WINDOWS.0\system32\nvsvc32.exe
C:\WINDOWS.0\system32\svchost.exe
C:\WINDOWS.0\SOUNDMAN.EXE
C:\WINDOWS.0\system32\RUNDLL32.EXE
C:\Program Files\Hewlett-Packard\HP Software Update\HPWuSchd.exe
C:\WINDOWS.0\system32\spool\drivers\w32x86\3\hpztsb08.exe
C:\WINDOWS.0\system32\LVCOMSX.EXE
C:\Program Files\Logitech\Video\LogiTray.exe
C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
C:\Program Files\D-Tools\daemon.exe
C:\Program Files\Cloneur Expert\TrueImageMonitor.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\Program Files\Common Files\Acronis\Schedule2\schedhlp.exe
C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\Common Files\Nero\Lib\NMIndexStoreSvr.exe
C:\Program Files\MessengerSkinner\MessengerSkinner.exe
C:\Program Files\Windows Live\Messenger\msnmsgr.exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\SpeedFan\speedfan.exe
C:\Program Files\Common Files\Nero\Lib\NMIndexingService.exe
C:\Program Files\Logitech\Video\FxSvr2.exe
C:\Program Files\Opera\Opera.exe
C:\Program Files\Hijackthis Version Française\VERSION TRADUITE ORIGINALE.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://runonce.msn.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://home.neuf.fr
O2 - BHO: Aide pour le lien d'Adobe PDF Reader - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\PROGRA~1\MICROS~3\Office12\GRA8E1~1.DLL
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Programme d'aide de l'Assistant de connexion Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Windows Live Toolbar Helper - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O3 - Toolbar: Windows Live Toolbar - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\Windows Live Toolbar\msntb.dll
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS.0\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS.0\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Program Files\Common Files\Nero\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [HP Software Update] C:\Program Files\Hewlett-Packard\HP Software Update\HPWuSchd.exe
O4 - HKLM\..\Run: [HPDJ Taskbar Utility] C:\WINDOWS.0\system32\spool\drivers\w32x86\3\hpztsb08.exe
O4 - HKLM\..\Run: [LVCOMSX] C:\WINDOWS.0\system32\LVCOMSX.EXE
O4 - HKLM\..\Run: [LogitechVideoRepair] C:\Program Files\Logitech\Video\ISStart.exe
O4 - HKLM\..\Run: [LogitechVideoTray] C:\Program Files\Logitech\Video\LogiTray.exe
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKLM\..\Run: [DeviceDiscovery] C:\Program Files\Hewlett-Packard\Digital Imaging\bin\hpotdd01.exe
O4 - HKLM\..\Run: [DAEMON Tools-1033] "C:\Program Files\D-Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [Cloneur Expert Monitor] "C:\Program Files\Cloneur Expert\TrueImageMonitor.exe"
O4 - HKLM\..\Run: [awxDTools] rundll32 C:\PROGRA~1\arniWORX\AWXDTO~1\awxDTools.dll,awxRegisterDll /r /s
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Acronis Scheduler2 Service] "C:\Program Files\Common Files\Acronis\Schedule2\schedhlp.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe"
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\RunOnce: [WIAWizardMenu] RUNDLL32.EXE C:\WINDOWS.0\system32\sti_ci.dll,WiaCreateWizardMenu
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS.0\system32\ctfmon.exe
O4 - HKCU\..\Run: [IndxStoreSvr_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Common Files\Nero\Lib\NMIndexStoreSvr.exe" ASO-616B5711-6DAE-4795-A05F-39A1E5104020
O4 - HKCU\..\Run: [LogitechSoftwareUpdate] "C:\Program Files\Logitech\Video\ManifestEngine.exe" boot
O4 - HKCU\..\Run: [messengerskinner] C:\Program Files\MessengerSkinner\MessengerSkinner.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\Windows Live\Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - Global Startup: SpeedFan.lnk = C:\Program Files\SpeedFan\speedfan.exe
O8 - Extra context menu item: &Windows Live Search - res://C:\Program Files\Windows Live Toolbar\msntb.dll/search.htm
O8 - Extra context menu item: Add to Windows &Live Favorites - https://onedrive.live.com/?id=favorites
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office12\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: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra button: Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: &Envoyer à OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~3\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\Office12\REFIEBAR.DLL
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://download.microsoft.com/download/E/5/6/E5611B10-0D6D-4117-8430-A67417AA88CD/LegitCheckControl.cab
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\PROGRA~1\MICROS~3\Office12\GR99D3~1.DLL
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Common Files\Microsoft Shared\Help\hxds.dll
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: wlmailhtml - {03C514A3-1EFB-4856-9F99-10D7BE1653C0} - C:\Program Files\Windows Live\Mail\mailcomm.dll
O18 - Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\PROGRA~1\COMMON~1\MICROS~1\OFFICE12\MSOXMLMF.DLL
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS.0\
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS.0\system32\WPDShServiceObj.dll
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: Diskeeper - Executive Software International, Inc. - C:\Program Files\Executive Software\DiskeeperLite\DKService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Nero\Lib\NMIndexingService.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS.0\system32\nvsvc32.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS.0\system32\ZoneLabs\vsmon.exe