I have installed and run spybot13, Lavasoft ad-aware and Microsoft AntiSPYware. But it didn't work. And here is my HJT log. Thank you very much for your help.
Logfile of HijackThis v1.99.0
Scan saved at 16:36:23, on 17.01.2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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\ibmpmsvc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\Grisoft\AVG6\avgserv.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Nokia\Nokia D211\D211CTL.exe
C:\Program Files\Symantec AntiVirus\DefWatch.exe
C:\lotus\notes\ntmulti.exe
C:\Program Files\Symantec AntiVirus\SavRoam.exe
C:\Program Files\CheckPoint\SecuRemote\bin\SR_WatchDog.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Symantec AntiVirus\Rtvscan.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\SYMANT~1\VPTray.exe
C:\PROGRA~1\ThinkPad\PkgMgr\HOTKEY\TPHKMGR.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\ThinkPad\PkgMgr\HOTKEY\TPONSCR.exe
C:\Program Files\ThinkPad\PkgMgr\HOTKEY_1\TpScrex.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\DOCUME~1\ERDOGAN\LOCALS~1\Temp\Geçici Dizin 1 (hijackthis.zip için)\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Bağlantılar
R3 - Default URLSearchHook is missing
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: (no name) - {AB07D8D0-2369-881F-81AF-C71825A24FD7} - C:\WINDOWS\ntrf.dll (file missing)
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\VPTray.exe
O4 - HKLM\..\Run: [TPHOTKEY] C:\PROGRA~1\ThinkPad\PkgMgr\HOTKEY\TPHKMGR.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O8 - Extra context menu item: Microsoft Excel'e Gö&nder - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
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
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O15 - Trusted Zone: *.awmdabest.com
O15 - Trusted Zone: *.frame.crazywinnings.com
O15 - Trusted Zone: *.slotchbar.com
O15 - Trusted Zone: *.ysbweb.com
O15 - Trusted Zone: *.awmdabest.com (HKLM)
O15 - Trusted Zone: *.frame.crazywinnings.com (HKLM)
O15 - Trusted Zone: *.slotchbar.com (HKLM)
O15 - Trusted IP range: 67.19.185.246
O15 - Trusted IP range: (HKLM)
O16 - DPF: {22A88341-AFCB-45F0-A856-C2BAE74F878E} (InstallX Class) -
http://www.20x2p.com/45a987d8/enter.cab
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = BRISANET.brisa.com.tr
O17 - HKLM\Software\..\Telephony: DomainName = BRISANET.brisa.com.tr
O17 - HKLM\System\CCS\Services\Tcpip\..\{25CC7146-7263-47DB-87FF-CDA0E81DC512}: NameServer = 172.21.1.3,172.21.1.4
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = BRISANET.brisa.com.tr
O23 - Service: AVG6 Service - GRISOFT(c) SOFTWARE s.r.o - C:\PROGRA~1\Grisoft\AVG6\avgserv.exe
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: Nokia D211 - Nokia Corporation - C:\Program Files\Nokia\Nokia D211\D211CTL.exe
O23 - Service: Symantec AntiVirus Definition Watcher - Symantec Corporation - C:\Program Files\Symantec AntiVirus\DefWatch.exe
O23 - Service: IBM PM Service - Unknown - C:\WINDOWS\System32\ibmpmsvc.exe
O23 - Service: Multi-user Cleanup Service - Unknown - C:\lotus\notes\ntmulti.exe
O23 - Service: SAVRoam - symantec - C:\Program Files\Symantec AntiVirus\SavRoam.exe
O23 - Service: Symantec Network Drivers Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Check Point SecuRemote Service - Check Point Software Technologies - C:\Program Files\CheckPoint\SecuRemote\bin\SR_Service.exe
O23 - Service: Check Point SecuRemote WatchDog - Check Point Software Technologies - C:\Program Files\CheckPoint\SecuRemote\bin\SR_WatchDog.exe
O23 - Service: Symantec AntiVirus - Symantec Corporation - C:\Program Files\Symantec AntiVirus\Rtvscan.exe
O23 - Service: Network Security Service - Unknown - C:\WINDOWS\system32\ntlz32.exe (file missing)