Problème avec libresystem

Bonjour,

Sans rien installer ou modifier sur mon pc récemment, je me retrouve avec une m.... de libresystem qui me demande de s'installer et es fenetres intempestives qui s'ouvrent, quelqu'un peut m'aider?
Voici le log HijackThis.

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 14:28:07, on 29/05/2008
Platform: Windows Vista (WinNT 6.00.1904)
MSIE: Internet Explorer v7.00 (7.00.6000.16575)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Program Files\ASUS Security Center\ASUS Security Protect Manager\Bin\AsGHost.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Motorola\SMSERIAL\sm56hlpr.exe
C:\Program Files\Nero\Nero 7\InCD\InCD.exe
C:\Windows\RtHDVCpl.exe
C:\Program Files\ASUS\ATK Media\DMedia.exe
C:\Program Files\Intel\Intel Matrix Storage Manager\IAANOTIF.EXE
C:\Windows\system32\taskeng.exe
C:\Program Files\PowerForPhone\PowerForPhone.exe
C:\Windows\ASScrPro.exe
C:\Windows\System32\rundll32.exe
C:\Windows\WindowsMobile\wmdc.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Program Files\DAEMON Tools\daemon.exe
C:\Windows\ehome\ehtray.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Windows\System32\rundll32.exe
C:\Windows\System32\mobsync.exe
C:\Windows\System32\rundll32.exe
C:\Windows\ehome\ehmsas.exe
C:\Program Files\Infineon\Security Platform Software\PSDrt.exe
C:\Program Files\Infineon\Security Platform Software\SpTna.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\Internet Explorer\ieuser.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Common Files\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Windows\system32\Macromed\Flash\FlashUtil9e.exe
C:\Windows\explorer.exe
C:\Users\Mehdi\Desktop\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.google.fr/?gws_rd=ssl
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.asus.com/fr/
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
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,AutoConfigURL = http://proxy.hei.intranet/proxy.pac
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [SMSERIAL] C:\Program Files\Motorola\SMSERIAL\sm56hlpr.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Program Files\Common Files\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [InCD] C:\Program Files\Nero\Nero 7\InCD\InCD.exe
O4 - HKLM\..\Run: [RtHDVCpl] RtHDVCpl.exe
O4 - HKLM\..\Run: [Skytel] Skytel.exe
O4 - HKLM\..\Run: [ATKMEDIA] C:\Program Files\ASUS\ATK Media\DMEDIA.EXE
O4 - HKLM\..\Run: [CognizanceTS] rundll32.exe C:\PROGRA~1\ASUSSE~1\ASUSSE~1\Bin\ASTSVCC.dll,RegisterModule
O4 - HKLM\..\Run: [IAAnotif] C:\Program Files\Intel\Intel Matrix Storage Manager\iaanotif.exe
O4 - HKLM\..\Run: [IaNvSrv] C:\Program Files\Intel\Intel Matrix Storage Manager\OROM\IaNvSrv\IaNvSrv.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [PowerForPhone] C:\Program Files\PowerForPhone\PowerForPhone.exe
O4 - HKLM\..\Run: [IFXSPMGT] C:\Windows\system32\ifxspmgt.exe /NotifyLogon
O4 - HKLM\..\Run: [ASUS Screen Saver Protector] C:\Windows\ASScrPro.exe
O4 - HKLM\..\Run: [ASUS Camera ScreenSaver] C:\Windows\ASScrProlog.exe
O4 - HKLM\..\Run: [NvSvc] RUNDLL32.EXE C:\Windows\system32\nvsvc.dll,nvsvcStart
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [Windows Mobile Device Center] %windir%\WindowsMobile\wmdc.exe
O4 - HKLM\..\Run: [WinampAgent] "C:\Program Files\Winamp\winampa.exe"
O4 - HKLM\..\Run: [MSServer] rundll32.exe C:\Windows\system32\xxywUKeE.dll,#1
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [DAEMON Tools] "C:\Program Files\DAEMON Tools\daemon.exe"
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Common Files\Ahead\Lib\NMBgMonitor.exe"
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
O4 - HKCU\..\Run: [WMPNSCFG] C:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKCU\..\Run: [cmds] rundll32.exe C:\Users\Mehdi\AppData\Local\Temp\cbXOEtTm.dll,c
O4 - HKCU\..\Run: [MSServer] rundll32.exe C:\Users\Mehdi\AppData\Local\Temp\xxyWnOIB.dll,#1
O4 - HKCU\..\Run: [BM47bf75e3] Rundll32.exe "C:\Users\Mehdi\AppData\Local\Temp\espeuifb.dll",s
O4 - HKCU\..\Run: [448c467f] rundll32.exe "C:\Users\Mehdi\AppData\Local\Temp\etuhfpau.dll",b
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Reader 8.0\Reader\reader_sl.exe
O4 - Global Startup: Adobe Reader Synchronizer.lnk = C:\Program Files\Adobe\Reader 8.0\Reader\AdobeCollabSync.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: ASUS Security Protect Manager e-Wallet - {1009C944-97D5-44A9-9E32-DFF54F498968} - C:\Program Files\ASUS Security Center\ASUS Security Protect Manager\Bin\ASWallet.dll
O9 - Extra 'Tools' menuitem: ASUS Security Protect Manager e-&Wallet - {1009C944-97D5-44A9-9E32-DFF54F498968} - C:\Program Files\ASUS Security Center\ASUS Security Protect Manager\Bin\ASWallet.dll
O9 - Extra button: @C:\Windows\WindowsMobile\INetRepl.dll,-222 - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\Windows\WindowsMobile\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Windows\WindowsMobile\INetRepl.dll
O9 - Extra 'Tools' menuitem: @C:\Windows\WindowsMobile\INetRepl.dll,-223 - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Windows\WindowsMobile\INetRepl.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O13 - Gopher Prefix:
O16 - DPF: {5C6698D9-7BE4-4122-8EC5-291D84DBD4A0} (Facebook Photo Uploader 4 Control) - http://upload.facebook.com/controls/FacebookPhotoUploader3.cab
O16 - DPF: {67DABFBF-D0AB-41FA-9C46-CC0F21721616} (DivXBrowserPlugin Object) - http://download.divx.com/player/DivXBrowserPlugin.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cab
O20 - AppInit_DLLs: APSHook.dll
O23 - Service: ASLDR Service (ASLDRService) - Unknown owner - C:\Program Files\ATK Hotkey\ASLDRSrv.exe
O23 - Service: ATKGFNEX Service (ATKGFNEXSrv) - Unknown owner - C:\Program Files\ATKGFNEX\GFNEXSrv.exe
O23 - Service: Intel(R) Matrix Storage Event Monitor (IAANTMON) - Intel Corporation - C:\Program Files\Intel\Intel Matrix Storage Manager\IAANTMon.exe
O23 - Service: Security Platform Management Service (IFXSpMgtSrv) - Infineon Technologies AG - C:\Windows\system32\ifxspmgt.exe
O23 - Service: Trusted Platform Core Service (IFXTCS) - Infineon Technologies AG - C:\Windows\system32\ifxtcs.exe
O23 - Service: InCD Helper (InCDsrv) - Nero AG - C:\Program Files\Nero\Nero 7\InCD\InCDsrv.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Common Files\LightScribe\LSSrvc.exe
O23 - Service: NBService - Nero AG - C:\Program Files\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Ahead\Lib\NMIndexingService.exe
O23 - Service: Personal Secure Drive Service (PersonalSecureDriveService) - Infineon Technologies AG - C:\Windows\system32\IfxPsdSv.exe
O23 - Service: PnkBstrA - Unknown owner - C:\Windows\system32\PnkBstrA.exe
O23 - Service: spmgr - Unknown owner - C:\Program Files\ASUS\NB Probe\SPM\spmgr.exe
O23 - Service: Syntek AVStream USB2.0 WebCam Service (StkSSrv) - Syntek America Inc. - C:\Windows\System32\StkCSrv.exe