[Closed] RIYO CODEC()

I JUST DOWNLOADED THIS CODEC AND I INSTALLED IT IN MY LAPTOP!!!

THEN MY FRIEND TOLD ME ITS A VIRUS!!
AND MY ANTIVIRUS DIDNOT DETECTED IT!!!(E-TRUST ANTIVIRUS)

SO WHAT SHOULD I DO

I M POSTING U A COPY OF MY LOGFILE

Logfile of HijackThis v1.99.1
Scan saved at 2:35:54 PM, on 10/13/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16544)

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:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\netdde.exe
C:\WINDOWS\system32\agrsmsvc.exe
C:\WINDOWS\system32\gearsec.exe
C:\Program Files\CA\eTrust Antivirus\InoRpc.exe
C:\Program Files\CA\eTrust Antivirus\InoRT.exe
C:\Program Files\CA\eTrust Antivirus\InoTask.exe
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\tlntsvr.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\MarkAny\ContentSafer\MAAgent.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe
C:\Program Files\DAEMON Tools\daemon.exe
C:\PROGRA~1\CA\ETRUST~1\realmon.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Nokia\Nokia PC Suite 6\LaunchApplication.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Ares\Ares.exe
C:\Program Files\PC Connectivity Solution\ServiceLayer.exe
C:\Program Files\Messenger\msmsgs.exe
C:\DOCUME~1\acer\LOCALS~1\Temp\RtkBtMnt.exe
C:\PROGRA~1\Yahoo!\MESSEN~1\ymsgr_tray.exe
C:\Program Files\Opera\Opera.exe
C:\Program Files\Hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.co.in/
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 Bar =

http://us.rd.yahoo.com/customize/ie/defaul…earch/search.ht

ml
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
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Windows Internet Explorer

provided by Yahoo!
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program

Files\Yahoo!\Companion\Installs\cpn0\yt.dll
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program

Files\Yahoo!\Companion\Installs\cpn0\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program

Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Yahoo! IE Services Button - {5BAB4B5B-68BC-4B02-94D6-2FC0DE4A7897} - C:\Program

Files\Yahoo!\Common\yiesrvc.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program

Files\Java\jre1.6.0_02\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {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\googletoolbar2.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program

Files\Yahoo!\Companion\Installs\cpn0\yt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program

files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [MAAgent] C:\Program Files\MarkAny\ContentSafer\MAAgent.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe"
O4 - HKLM\..\Run: [DAEMON Tools] "C:\Program Files\DAEMON Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [INPROCOMMWireless] C:\Program Files\Atheros\Wireless\Utility\WlanUtil.exe
O4 - HKLM\..\Run: [Realtime Monitor] C:\PROGRA~1\CA\ETRUST~1\realmon.exe -s
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"

-osboot
O4 - HKLM\..\Run: [PCSuiteTrayApplication] C:\Program Files\Nokia\Nokia PC Suite

6\LaunchApplication.exe -startup
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [ares] "C:\Program Files\Ares\Ares.exe" -h
O4 - HKCU\..\Run: [Yahoo! Pager] "C:\PROGRA~1\Yahoo!\MESSEN~1\YAHOOM~1.EXE" -quiet
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel -

res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program

Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} -

C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O9 - Extra button: Yahoo! Services - {5BAB4B5B-68BC-4B02-94D6-2FC0DE4A7897} - C:\Program

Files\Yahoo!\Common\yiesrvc.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network

Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} -

%windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (Installation Support) - C:\Program

Files\Yahoo!\Common\Yinsthelper.dll
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} -

C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} -

C:\PROGRA~1\MSNMES~1\MSGRAP~1.DLL
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxdev.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} -

C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Agere Modem Call Progress Audio (AgereModemAudio) - Agere Systems -

C:\WINDOWS\system32\agrsmsvc.exe
O23 - Service: Ares Chatroom server (AresChatServer) - Ares Development Group - C:\Program

Files\Ares\chatServer.exe
O23 - Service: gearsec - GEAR Software - C:\WINDOWS\system32\gearsec.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google

Updater\GoogleUpdaterService.exe
O23 - Service: eTrust Antivirus RPC Server (InoRPC) - Computer Associates International, Inc. -

C:\Program Files\CA\eTrust Antivirus\InoRpc.exe
O23 - Service: eTrust Antivirus Realtime Server (InoRT) - Computer Associates International,

Inc. - C:\Program Files\CA\eTrust Antivirus\InoRT.exe
O23 - Service: eTrust Antivirus Job Server (InoTask) - Computer Associates International, Inc. -

C:\Program Files\CA\eTrust Antivirus\InoTask.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\PC Connectivity

Solution\ServiceLayer.exe