Saludos ;

Aqui les dejo mi log...

Logfile of HijackThis v1.99.1
Scan saved at 05:32:51 p.m., on 27/07/2005
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

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\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Compaq\Easy Access Button Support\StartEAK.exe
C:\WINDOWS\System32\PackethSvc.exe
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Compaq\Easy Access Button Support\CPQEADM.EXE
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\CMPDPSR V.EXE
C:\USBStorage\USBDetector.exe
C:\Program Files\Microsoft AntiSpyware\gcasServ.exe
C:\COMPAQ\CPQINET\CPQInet.exe
C:\PROGRA~1\COMMON~1\AOL\ACS\acsd.exe
C:\PROGRA~1\CA\ETRUST~1\ETRUST~1\VetTray.exe
C:\Compaq\EAKDRV\EAUSBKBD.EXE
C:\PROGRA~1\Compaq\EASYAC~1\BttnServ.exe
C:\PROGRA~1\CA\ETRUST~1\ETRUST~2\ca.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE
C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\isafe.exe
C:\Program Files\Microsoft AntiSpyware\gcasDtServ.exe
C:\Program Files\Executive Software\Diskeeper\DkService.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\VetMsg.exe
C:\WINDOWS\SYSTEM32\ZoneLabs\vsmon.exe
C:\WINDOWS\wanmpsvc.exe
C:\Program Files\America Online 9.0\aoltray.exe
C:\Program Files\AOL Companion\companion.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\Javier Ortiz\Local Settings\Temp\Temporary Directory 1 for HijackThis.zip\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://store.presario.net/scripts/redirectors/presario/storeredir2.dll?s=searchfavweb&c=3c01&lc=0409
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.centennialpr.net/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://store.presario.net/scripts/redirectors/presario/storeredir2.dll?s=consumerfav&c=3c01&lc=0409
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://store.presario.net/scripts/redirectors/presario/storeredir2.dll?s=dticon005&c=3c01&lc=0409
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer provided by Compaq
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [CPQEASYACC] C:\Program Files\Compaq\Easy Access Button Support\StartEAK.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [srmclean] C:\Cpqs\Scom\srmclean.exe
O4 - HKLM\..\Run: [CMPDPSRV] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\CMPDPSR V.EXE
O4 - HKLM\..\Run: [USBDetector] C:\USBStorage\USBDetector.exe
O4 - HKLM\..\Run: [gcasServ] "C:\Program Files\Microsoft AntiSpyware\gcasServ.exe"
O4 - HKLM\..\Run: [VetTray] C:\PROGRA~1\CA\ETRUST~1\ETRUST~1\VetTray.exe
O4 - HKLM\..\Run: [Zone Labs Client] C:\PROGRA~1\CA\ETRUST~1\ETRUST~2\ca.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE"
O4 - Global Startup: America Online 9.0 Tray Icon.lnk = C:\Program Files\America Online 9.0\aoltray.exe
O4 - Global Startup: AOL Companion.lnk = C:\Program Files\AOL Companion\companion.exe
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INETREPL.DLL
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INETREPL.DLL
O9 - Extra 'Tools' menuitem: Create Mobile Favorite... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INETREPL.DLL
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\System32\shdocvw.dll
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\WINDOWS\System32\shdocvw.dll
O9 - Extra button: Support - {A1C62740-93D5-4E72-A5B6-B668D58C5197} - C:\Program Files\Internet Explorer\SIGNUP\Presario.htm (HKCU)
O12 - Plugin for .wav: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin2.dll
O14 - IERESET.INF: START_PAGE_URL=http://store.presario.net/scripts/redirectors/presario/storeredir2.dll?s=consumerfav&c=3c01&lc=0409
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://www.pandasoftware.com/activescan/as5/asinst.cab
O23 - Service: AOL Connectivity Service (AOL ACS) - America Online, Inc. - C:\PROGRA~1\COMMON~1\AOL\ACS\acsd.exe
O23 - Service: CA ISafe (CAISafe) - Computer Associates International, Inc. - C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\isafe.exe
O23 - Service: Diskeeper - Executive Software International, Inc. - C:\Program Files\Executive Software\Diskeeper\DkService.exe
O23 - Service: Virtual NIC Service (PackethSvc) - America Online, Inc. - C:\WINDOWS\System32\PackethSvc.exe
O23 - Service: VET Message Service (VETMSGNT) - Computer Associates International, Inc. - C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\VetMsg.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs Inc. - C:\WINDOWS\SYSTEM32\ZoneLabs\vsmon.exe
O23 - Service: WAN Miniport (ATW) Service (WANMiniportService) - America Online, Inc. - C:\WINDOWS\wanmpsvc.exe
O23 - Service: Winkkys - Unknown owner - C:\WINDOWS\System32\Winkkys.exe (file missing)
O23 - Service: Winkvfr - Unknown owner - C:\WINDOWS\System32\Winkvfr.exe (file missing)
O23 - Service: Winkxmy - Unknown owner - C:\WINDOWS\System32\Winkxmy.exe (file missing)

Hola, el log lo veo limpio, lo unico sospechoso son las ultimas 3 entradas 023

O23 - Service: Winkkys - Unknown owner - C:\WINDOWS\System32\Winkkys.exe (file missing)

Si no reconoces ese archivo Winkkys.exe lo podes hacer analizar online en "Virus-Total" para ver como proceder.

Salu1