Gs ElPiedra, por las pistas, corri el spybot y el avg varias veces...
Me sigue apareciendo un Trojan StarPage 19.AO

Logfile of HijackThis v1.99.1
Scan saved at 8:55:33 PM, on 8/19/2005
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

Running processes:
C:\WINXP\System32\smss.exe
C:\WINXP\system32\winlogon.exe
C:\WINXP\system32\services.exe
C:\WINXP\system32\lsass.exe
C:\WINXP\system32\svchost.exe
C:\WINXP\System32\svchost.exe
C:\WINXP\system32\spoolsv.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINXP\Explorer.EXE
C:\WINXP\winqd.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\PROGRA~1\Symantec\NORTON~1\GHOSTS~2.EXE
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\AdvTools\NPROTECT.EXE
C:\Program Files\Reflection\rtsserv.exe
C:\WINXP\System32\wuauclt.exe
C:\Program Files\Symantec\Norton Ghost 2003\GhostStartTrayApp.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\WINXP\system32\sdkir32.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\WinZip\WZQKPICK.EXE
C:\Program Files\HJT\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINXP\njzhm.dll/sp.html#83556
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINXP\njzhm.dll/sp.html#83556
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = res://C:\WINXP\njzhm.dll/sp.html#83556
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINXP\njzhm.dll/sp.html#83556
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINXP\njzhm.dll/sp.html#83556
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINXP\njzhm.dll/sp.html#83556
R3 - Default URLSearchHook is missing
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O2 - BHO: Class - {F6042CF1-916C-3BB5-55A1-575E5C5F4E42} - C:\WINXP\atlqw.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINXP\System32\msdxm.ocx
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [Generic Host Process32g System Backup] scvhost32cg.exe
O4 - HKLM\..\Run: [GhostStartTrayApp] C:\Program Files\Symantec\Norton Ghost 2003\GhostStartTrayApp.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [ccRegVfy] "C:\Program Files\Common Files\Symantec Shared\ccRegVfy.exe"
O4 - HKLM\..\Run: [Advanced Tools Check] C:\PROGRA~1\NORTON~1\AdvTools\ADVCHK.EXE
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe /Consumer
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Program Files\Common Files\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKLM\..\Run: [sdkir32.exe] C:\WINXP\system32\sdkir32.exe
O4 - HKLM\..\Run: [d3ip32.exe] C:\WINXP\system32\d3ip32.exe
O4 - HKLM\..\RunServices: [Generic Host Process32g System Backup] scvhost32cg.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINXP\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINXP\web\related.htm
O12 - Plugin for .rx: C:\Program Files\Internet Explorer\Plugins\iewrqxrx.dll
O12 - Plugin for .rxc: C:\Program Files\Internet Explorer\Plugins\iewrqxrx.dll
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{93B80504-9224-4A66-9FDE-C6E5A0B84DFE}: NameServer = 192.1.3.10
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation Service (ccPwdSvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: GhostStartService - Symantec Corporation - C:\PROGRA~1\Symantec\NORTON~1\GHOSTS~2.EXE
O23 - Service: Norton AntiVirus Auto Protect Service (navapsvc) - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton Unerase Protection (NProtectService) - Symantec Corporation - C:\Program Files\Norton AntiVirus\AdvTools\NPROTECT.EXE
O23 - Service: Reflection TimeSync - WRQ, Inc. - C:\Program Files\Reflection\rtsserv.exe
O23 - Service: ScriptBlocking Service (SBService) - Symantec Corporation - C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: SymWMI Service (SymWSC) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\Security Center\SymWSC.exe

Hola!!!

Para la próxima vez pon tus mensajes en el lugar correcto. Si posteas un log de HijackThis directamente el lugar correcto es el Subforo de HijackThis...lógico, no???

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Saludos