Ordinateur infecté ? Besoin d'avis éclairés

Bonjour,

Je me suis rendu compte hier qu'un processus (msr.exe) ralentissait anormalement mon PC.
J'ai donc lancé CCleaner 2.15 puis A-squared 4.5 pour nettoyer tout ça..

A-Squarred a détecté un trojan et deux adwares (hors cookies) :
- Virus.Win32.Trojan!IK
- AdWare.AdSpy!IK (le premier lancement de A-squared [avorté au milieu malheureusement] a mis en quarantaine 15 fichiers atteints)
- AdWare/PremiumO!IK (1 fichier en quarantaine)

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RAPPORT :
Version - a-squared Free 4.5
Dernière mise à jour : 22/08/2009 20:40:36

Paramètres des balayages :

Type de numérisation : Scan Rusé
Éléments : Mémoire, Traces, Cookies, C:\Windows\, C:\Program Files
Balaye dans les archives : Marche
Analyse heuristique : Arrêt
Balaye dans les ADS : Marche

Début du balayage : 23/08/2009 14:02:57

C:\Users\Nic©\AppData\Roaming\Microsoft\Windows\Cookies\nic©@atdmt[1].txt Objets détectés : Trace.TrackingCookie.atdmt!A2
C:\Users\Nic©\AppData\Roaming\Microsoft\Windows\Cookies\nic©@atdmt[2].txt Objets détectés : Trace.TrackingCookie.atdmt!A2
C:\Users\Nic©\AppData\Roaming\Microsoft\Windows\Cookies\nic©@bs.serving-sys[2].txt Objets détectés : Trace.TrackingCookie.bs.serving-sys!A2
C:\Users\Nic©\AppData\Roaming\Microsoft\Windows\Cookies\nic©@doubleclick[1].txt Objets détectés : Trace.TrackingCookie.doubleclick!A2
C:\Users\Nic©\AppData\Roaming\Microsoft\Windows\Cookies\nic©@serving-sys[2].txt Objets détectés : Trace.TrackingCookie.serving-sys!A2
C:\Users\Nic©\AppData\Roaming\Microsoft\Windows\Cookies\nic©@weborama[1].txt Objets détectés : Trace.TrackingCookie.weborama!A2
C:\Windows\System32\srksrv.exe Objets détectés : Virus.Win32.Trojan!IK
C:\Program Files\PermissionResearch\prls.dll Objets détectés : AdWare.AdSpy!IK

Analysé

Fichiers : 183802
Traces : 536096
Cookies : 34
Processus : 57

Objets trouvés

Fichiers : 2
Traces : 0
Cookies : 6
Processus : 0
Clés de Registre : 0

Fin du balayage : 23/08/2009 16:15:39
Temps du balayage : 2:12:42
------

En représailles j'ai tout supprimé puis lancé HijackThis, voici le rapport :

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 16:26:01, on 23/08/2009
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18294)
Boot mode: Normal

Running processes:
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\system32\taskeng.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Avast4\ashDisp.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\MOM.exe
C:\Windows\system32\wbem\unsecapp.exe
C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CCC.exe
C:\Program Files\Windows Media Player\wmpnscfg.exe
C:\Program Files\Trend Micro\HijackThis\HJT.exe
C:\Windows\system32\SearchFilterHost.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = https://www.google.com/?gws_rd=ssl
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.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
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
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: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (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: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Browser Address Error Redirector - {CA6319C0-31B7-401E-A518-A07C3DB8F777} - C:\Program Files\Google\Google_BAE\BAE.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [StartCCC] "C:\Program Files\ATI Technologies\ATI.ACE\Core-Static\CLIStart.exe" MSRun
O4 - HKLM\..\Run: [RtHDVCpl] RtHDVCpl.exe
O4 - HKLM\..\Run: [CarboniteSetupLite] "C:\Program Files\Packard Bell\Carbonite\CarboniteSetupLitePBPreInstaller.exe" /preinstalled
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKCU\..\Run: [SmpcSys] C:\Program Files\Packard Bell\SetUpMyPC\SmpSys.exe
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\SideBar.exe /autoRun
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVICE RÉSEAU')
O8 - Extra context menu item: Add to Google Photos Screensa&ver - res://C:\Windows\system32\GPhotos.scr/200
O8 - Extra context menu item: E&xporter vers Microsoft Excel - res://C:\PROGRA~1\MICROS~3\Office12\EXCEL.EXE/3000
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
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-12650 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O13 - Gopher Prefix:
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://appldnld.apple.com/QuickTime/qtactivex/qtplugin.cab
O16 - DPF: {0CCA191D-13A6-4E29-B746-314DEE697D83} (Facebook Photo Uploader 5 Control) - http://upload.facebook.com/controls/2008.10.10_v5.5.8/FacebookPhotoUploader5.cab
O16 - DPF: {49E67060-2C0D-415E-94C7-52A49F73B2F1} (CPlayFirstPiratePoppersControl Object) - http://jeuxentelechargement.orange.fr/GameShell/online/fr/pirate_poppers/PiratePoppers.1.0.0.39.cab
O16 - DPF: {7FC1B346-83E6-4774-8D20-1A6B09B0E737} (Windows Live Photo Upload Control) - http://noto96.spaces.live.com/PhotoUpload/VistaMsnPUpldfr-fr.cab
O16 - DPF: {C3F79A2B-B9B4-4A66-B012-3EE46475B072} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsPAClient.cab56907.cab
O16 - DPF: {D0C0F75C-683A-4390-A791-1ACFD5599AB8} (Oberon Flash Game Host) - http://jeuxenligne.orange.fr/Gameshell/GameHost/1.0/OberonGameHost.cab
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) - file:///C:/Users/Nic©/AppData/Local/Oberon%20Media/Oberon%20Games%20Host/popcaploader_v10.cab
O16 - DPF: {E862C832-3A5F-4CEB-BFAA-167B22010A71} (InfosFinder2.InfosFinder) - http://support.packardbell.com/files/activex/InfosFinder2.CAB
O16 - DPF: {FC4CAF5F-91BD-4DD9-ADC1-F3C737E37BC4} (CPlayFirstSweetopiaControl Object) - http://jeuxenligne.orange.fr/GameShell/online/fr/sweetopia/Sweetopia.1.0.0.46.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O20 - AppInit_DLLs: C:\PROGRA~1\Google\GOOGLE~3\GOEC62~1.DLL
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - C:\Program Files\a-squared Free\a2service.exe
O23 - Service: Adobe Active File Monitor V6 (AdobeActiveFileMonitor6.0) - Unknown owner - C:\Program Files\Adobe\Photoshop Elements 6.0\PhotoshopElementsFileAgent.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Avast4\aswUpdSv.exe
O23 - Service: Ati External Event Utility - ATI Technologies Inc. - C:\Windows\system32\Ati2evxx.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Avast4\ashWebSv.exe
O23 - Service: Service Bonjour (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: dlbc_device - - C:\Windows\system32\dlbccoms.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Google Desktop Manager 5.7.801.7324 (GoogleDesktopManager-010708-104812) - Google - C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\Windows\System32\LEXBCES.EXE
O23 - Service: Nero BackItUp Scheduler 3 - Nero AG - C:\Program Files\Nero\Nero8\Nero BackItUp\NBService.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Nero\Lib\NMIndexingService.exe
O23 - Service: PermissionResearch - TMRG, Inc. - C:\Program Files\PermissionResearch\prservice.exe
O23 - Service: PLFlash DeviceIoControl Service - Prolific Technology Inc. - C:\Windows\system32\IoctlSvc.exe
O23 - Service: SiSoftware Deployment Agent Service (SandraAgentSrv) - SiSoftware - C:\Program Files\SiSoftware\SiSoftware Sandra Lite 2009.SP4\RpcAgentSrv.exe