Hur gör man om svchost är infekterat?

Avast klagar på att svchost är infekterad med virus men vet inte hur jag får bort det. Någon som kan hjälpa, har gjort hijackthis. Kan jag inaktivera följande?

O23 - Service: Alerter - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Application Management (AppMgmt) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Windows Audio (AudioSrv) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Background Intelligent Transfer Service (BITS) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Computer Browser (Browser) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Cryptographic Services (CryptSvc) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: DCOM Server Process Launcher (DcomLaunch) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: DHCP Client (Dhcp) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Logical Disk Manager (dmserver) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: DNS Client (Dnscache) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Wired AutoConfig (Dot3svc) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Extensible Authentication Protocol Service (EapHost) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Error Reporting Service (ERSvc) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: COM+ Event System (EventSystem) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Fast User Switching Compatibility (FastUserSwitchingCompatibility) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Help and Support (helpsvc) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: HID Input Service (HidServ) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Health Key and Certificate Management Service (hkmsvc) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: HTTP SSL (HTTPFilter) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Iprip - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Server (LanmanServer) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Workstation (lanmanworkstation) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: TCP/IP NetBIOS Helper (LmHosts) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Network Access Protection Agent (napagent) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: NBService - Nero AG - C:\Program Files\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: Network Connections (Netman) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Network Location Awareness (NLA) (Nla) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: NMIndexingService - Nero AG - C:\Program Files\Common Files\Ahead\Lib\NMIndexingService.exe
O23 - Service: Removable Storage (NtmsSvc) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Remote Access Auto Connection Manager (RasAuto) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Remote Access Connection Manager (RasMan) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Remote Registry (RemoteRegistry) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Remote Procedure Call (RPC) (RpcSs) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Task Scheduler (Schedule) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Secondary Logon (seclogon) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: System Event Notification (SENS) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Shell Hardware Detection (ShellHWDetection) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: System Restore Service (srservice) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: SSDP Discovery Service (SSDPSRV) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Windows Image Acquisition (WIA) (stisvc) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Telephony (TapiSrv) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Terminal Services (TermService) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Themes - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Distributed Link Tracking Client (TrkWks) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Universal Plug and Play Device Host (upnphost) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Windows Time (W32Time) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: WebClient - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Windows Management Instrumentation (winmgmt) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Portable Media Serial Number Service (WmdmPmSN) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Windows Management Instrumentation Driver Extensions (Wmi) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Security Center (wscsvc) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Automatic Updates (wuauserv) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Windows Driver Foundation - User-mode Driver Framework (WudfSvc) - Unknown owner - C:\WINDOWS\system32\svchost.exe
O23 - Service: Wireless Zero Configuration (WZCSVC) - Unknown owner - C:\WINDOWS\System32\svchost.exe
O23 - Service: Network Provisioning Service (xmlprov) - Unknown owner - C:\WINDOWS\System32\svchost.exe

De flesta, ja. Men det kommer inte bli så stabilt kanske.
Den måste vara igång, annars fungerar inte Windows så bra.

Låter konstigt att det är den riktiga svchost som är infekterad.

Kan du kolla sökvägen till den som Avast säger är skadad?

ser ut att vara en vista logg med väldigt många 023 rader men man måste se hela loggen

Här är resten.


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:\WINDOWS\system32\svchost.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\Mixer.exe
C:\WINDOWS\system32\sstray.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\DAEMON Tools Lite\daemon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Sony Ericsson\Sony Ericsson PC Suite\SEPCSuite.exe
C:\Program Files\Windows Desktop Search\WindowsSearch.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\system32\SearchIndexer.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Groove GFS Browser Helper - {72853161-30C5-4D22-B7F9-0BBC1D38A37E} - C:\PROGRA~1\MICROS~2\Office12\GRA8E1~1.DLL
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [C-Media Mixer] Mixer.exe /startup
O4 - HKLM\..\Run: [nForce Tray Options] sstray.exe /r
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [GrooveMonitor] "C:\Program Files\Microsoft Office\Office12\GrooveMonitor.exe"
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [DAEMON Tools Lite] "C:\Program Files\DAEMON Tools Lite\daemon.exe" -autorun
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Sony Ericsson PC Suite] "C:\Program Files\Sony Ericsson\Sony Ericsson PC Suite\SEPCSuite.exe" /systray /nologon
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'NETWORK SERVICE')
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')
O4 - Global Startup: Java SATARaid.lnk = C:\Program Files\Silicon Image\Java SATARaid\run.bat
O4 - Global Startup: Windows Search.lnk = C:\Program Files\Windows Desktop Search\WindowsSearch.exe
O8 - Extra context menu item: E&xportera till Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: Skicka till OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: Ski&cka till OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.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: {0CCA191D-13A6-4E29-B746-314DEE697D83} (Facebook Photo Uploader 5 Control) - http://upload.facebook.com/controls/...oUploader5.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://www.update.microsoft.com/wind...?1220897737395
O16 - DPF: {74DBCB52-F298-4110-951D-AD2FF67BC8AB} (NVIDIA Smart Scan) - http://www.nvidia.com/content/Driver...aSmartScan.cab
O16 - DPF: {CF40ACC5-E1BB-4AFF-AC72-04C2F616BCA7} -
O18 - Protocol: grooveLocalGWS - {88FED34C-F0CA-4636-A375-3CB6248B04CD} - C:\PROGRA~1\MICROS~2\Office12\GR99D3~1.DLL

och virusvarningen er ut så här

c:\windows\system32\svchost.exe
Win32:Patched-IT [Trj]
Trojan Horse

och den säger att jag inte kan göra något för att det är read only

scanna filen här
http://www.virustotal.com/sv/

Ladda hem gmer på www.gmer.net

1. Kör igång gmer.
2. När han hittar tjänsterna som masken kört igång sig som.
3. Disabla tjänsterna.
4. Starta om.
5. Ändra rättigheterna på filen till full/everyone.
6. Nu skall AV kunna ta bort den infekterade filen.

Problemet är att det är svchost.exe det handlar om, utan den fungerar inte mycket i Windows.

Har du otur kommer du inte ens kunna logga in.

Det är inget problem med att det är svchost.

Bara för att du disabla dom tjänster som masken har kört igång sig själv. Betyder inte det att den förstör något.

Masken kör igång sig själv via svchost. Du kan inte ta bort .dll filen (den infekterade) som den kört igång om du inte stänger av tjänsten.

Tjänsten som den kört igång sig själv som är ingen tjänst som används till något.

Så varför skulle det vara ett problem att stänga av den? Du rör inte svchost bara för du stänger av en tjänst som inte används till något.

och för övrigt är det inte svchost som är infekterad utan bakomliggade dll:er