Hi emiliano_cabrera,
Your not running both Norton Anti-virus and Avast Anti-virus on that computer are you?, if so you need to disable one of them to prevent them from conflicting with each other.
Definitely remove these:
O4 - HKCU..\RunOnce: [NSWCfg.exe] “C:\Archivos de programa\Norton SystemWorks\NSWCfg.exe”
O9 - Extra button: Microsoft AntiSpyware helper - {CE6016E3-E8DE-43ED-A863-FE6D6527BE8F} - (no file) (HKCU)
O9 - Extra ‘Tools’ menuitem: Microsoft AntiSpyware helper - {CE6016E3-E8DE-43ED-A863-FE6D6527BE8F} - (no file) (HKCU)
O16 - DPF: {01A88BB1-1174-41EC-ACCB-963509EAE56B} (SysProWmi Class) - http://support.dell.com/systemprofiler/SysPro.CAB
O23 - Service: Debug oupost relations (LAGOS) - Unknown owner - C:\WINDOWS\System32\ahtun.exe
Also its ok to remove these: (there not malware though, so what you remove is up to you)
Internet Explorer BHO’s
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Archivos de programa\Adobe\Acrobat 6.0\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: AcroIEToolbarHelper Class - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Archivos de programa\Adobe\Acrobat
6.0\Acrobat\AcroIEFavClient.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Archivos de programa\Norton SystemWorks\Norton Antivirus\NavShExt.dll
Internet Explorer Toolbars
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Archivos de programa\Adobe\Acrobat 6.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Archivos de programa\Norton SystemWorks\Norton Antivirus\NavShExt.dll
Internet Explorer Extra MSIE context menu items
O8 - Extra context menu item: &Download with TrueDownloader! - C:\Archivos de programa\TrueDownloader\TrueDownloader.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\ARCHIV~1\MICROS~2\Office10\EXCEL.EXE/3000
Internet Explorer Extra ‘Tools’ menuitems and buttons
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Archivos de programa\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra ‘Tools’ menuitem: Consola de Sun Java - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Archivos de programa\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Archivos de programa\Messenger\msmsgs.exe
O9 - Extra ‘Tools’ menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Archivos de programa\Messenger\msmsgs.exe
Download Program Files
O16 - DPF: {0A5FD7C5-A45C-49FC-ADB5-9952547D5715} (Creative Software AutoUpdate) - http://www.creative.com/su/ocx/15009/CTSUEng.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=36467&clcid=0x409
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5consumer/V5Controls/en/x86/client/wuweb_site.cab?1110739428273
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {F6ACF75C-C32C-447B-9BEF-46B766368D29} (Creative Software AutoUpdate Support Package) - http://www.creative.com/su/ocx/15010/CTPID.cab
Then you need to download LSPfix: http://www.cexx.org/LSPFix.exe
Then when you open LSPfix make sure you have ‘flsmngr.dll’ (may be more then one) in the Remove section, then check the ‘I know what im doing box’, then click Finish.
Then delete these files: (if there)
C:\WINDOWS\System32[b]ahtun.exe[/b]
C:\WINDOWS\system32[b]comrconf.exe[/b]
Then reboot your machine
Then run any Spyware scanners you have. (Spybot/ad-aware etc), you may have to reinstall Microsoft Anti-Spyware as it seems damaged.
Then make sure avast is up to date, then run a boot time scan with avast set to scan inside archives (Open avast > Menu (top left hand corner) > Boot Time Scan)
Then remove any Temp files you have, with System Works or ccleaner (http://www.filehippo.com/download/ncAOCJr-Om3Lq35Rh3QQoQ2/download.html)
Then post back whether your problem is solved, and a new hijackthis log so we can confirm your clean.
–lee