I think I have a big problem with a trojan

Hi. Thanks in advance for your help.

Today I found that I have a process running in my computer that I'd never seen before: "Xpupdate". I suspect that this has something to do with the problems I'm having trying to open MSExcel and MSWord files, actually I can't open any of them.

I did some research in the web and I found that my computer is probably infected with a trojan, but I don't know exactly of which kind. I have the "xpupdate.exe" file in my C:\Windows folder and the "install.dat" file in the C:\Windows\Application Data folder, so I know I'm in trouble.

I came across with your web site and follow all the instructions: downloaded and run the HJT and now I'm running the Panda Active Scan.

Here's my HJT log. ¿What should I do?

Logfile of HijackThis v1.99.1
Scan saved at 04:29:09, on 05/01/07
Platform: Windows 98 Gold (Win9x 4.10.1998)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\ARCHIVOS DE PROGRAMA\ARCHIVOS COMUNES\SYSTEM\MOSEARCH\BIN\MOSEARCH.EXE
C:\ARCHIVOS DE PROGRAMA\ARCHIVOS COMUNES\MICROSOFT SHARED\VS7DEBUG\MDM.EXE
C:\ARCHIVOS DE PROGRAMA\MESSENGER PLUS! 3\MSGPLUS.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\PSTORES.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\ARCHIVOS DE PROGRAMA\NORTON ANTIVIRUS\NAVAPW32.EXE
C:\WINDOWS\LOADQM.EXE
C:\ARCHIVOS DE PROGRAMA\EFFICIENT NETWORKS\ENTERNET 300\APP\ENTERNET.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\WINDOWS\SYSTEM32\DRIVERS\DCFSSVC.EXE
C:\WINDOWS\SYSTEM\CTFMON.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\ARCHIVOS DE PROGRAMA\MSN MESSENGER\MSNMSGR.EXE
C:\ARCHIVOS DE PROGRAMA\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\WINDOWS\RUNDLL32.EXE
C:\ARCHIVOS DE PROGRAMA\OUTLOOK EXPRESS\MSIMN.EXE
C:\ARCHIVOS DE PROGRAMA\HIJACK THIS\HIJACKTHIS.EXE

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://red.clientapps.yahoo.com/customize/ie/defaults/stp/ymsgr*http://my.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://red.clientapps.yahoo.com/customize/ie/defaults/su/ymsgr/*http://www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/customize/ie/defaults/sb/ymsgr/*http://www.yahoo.com/ext/search/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://red.clientapps.yahoo.com/customize/ie/defaults/sp/ymsgr/*http://www.yahoo.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://red.clientapps.yahoo.com/customize/ie/defaults/stp/ymsgr*http://my.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Vínculos
O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\ARCHIVOS DE PROGRAMA\YAHOO!\COMMON\YCOMP5_1_6_0.DLL
O2 - BHO: CNavExtBho Class - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Archivos de programa\Norton AntiVirus\NavShExt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\ARCHIVOS DE PROGRAMA\ADOBE\ACROBAT 5.0\READER\ACTIVEX\ACROIEHELPER.OCX
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Archivos de programa\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\ARCHIVOS DE PROGRAMA\YAHOO!\COMMON\YCOMP5_1_6_0.DLL
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [NAV Agent] C:\ARCHIV~1\NORTON~1\NAVAPW32.EXE
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\WINDOWS\SYSTEM\QTTASK.EXE" -atboottime
O4 - HKLM\..\Run: [$EnterNet] C:\ARCHIV~1\EFFICI~1\ENTERN~1\APP\ENTERNET.EXE -AutoStart
O4 - HKLM\..\Run: [InCD] C:\Archivos de programa\Ahead\InCD\InCD.exe
O4 - HKLM\..\Run: [CloneCDTray] "C:\Archivos de programa\SlySoft\CloneCD\CloneCDTray.exe" /s
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\ARCHIV~1\SYMANTEC\LIVEUP~1\SNDMON.EXE
O4 - HKLM\..\Run: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\Run: [Dcfssvc] C:\WINDOWS\System32\Drivers\dcfssvc.exe
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [ScriptBlocking] "C:\Archivos de programa\Archivos comunes\Symantec Shared\Script Blocking\SBServ.exe" -reg
O4 - HKLM\..\RunServices: [MOSearch] C:\ARCHIV~1\ARCHIV~1\SYSTEM\MOSEARCH\BIN\MOSEARCH.EXE
O4 - HKLM\..\RunServices: [MDM7] "C:\ARCHIVOS DE PROGRAMA\ARCHIVOS COMUNES\MICROSOFT SHARED\VS7DEBUG\MDM.EXE"
O4 - HKLM\..\RunServices: [MessengerPlus3] "C:\Archivos de programa\Messenger Plus! 3\MsgPlus.exe"
O4 - HKCU\..\Run: [ctfmon.exe] ctfmon.exe
O4 - HKCU\..\Run: [MessengerPlus3] "C:\Archivos de programa\Messenger Plus! 3\MsgPlus.exe" /WinStart
O4 - HKCU\..\Run: [Windows update loader] C:\Windows\xpupdate.exe
O4 - Startup: Microsoft Office.lnk = C:\Archivos de programa\Microsoft Office\Office10\OSA.EXE
O4 - Startup: EPSON Status Monitor 3 Environment Check.lnk = C:\WINDOWS\SYSTEM\E_SRCV03.EXE
O4 - Startup: Outlook Express.lnk = C:\Archivos de programa\Outlook Express\msimn.exe
O8 - Extra context menu item: E&xportar a Microsoft Excel - res://C:\ARCHIV~1\MICROS~1\OFFICE10\EXCEL.EXE/3000
O8 - Extra context menu item: Yahoo! Search - file:///C:\Archivos de programa\Yahoo!\Common/ycsrch.htm
O8 - Extra context menu item: Yahoo! Dictionary - file:///C:\Archivos de programa\Yahoo!\Common/ycdict.htm
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\ARCHIVOS DE PROGRAMA\YAHOO!\MESSENGER\YHEXBMES0411.DLL
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\ARCHIVOS DE PROGRAMA\YAHOO!\MESSENGER\YHEXBMES0411.DLL
O12 - Plugin for .spop: C:\ARCHIV~1\INTERN~1\Plugins\NPDocBox.dll
O16 - DPF: Win32 Classes - file://C:\WINDOWS\Java\classes\win32ie4.cab
O16 - DPF: {D18F962A-3722-4B59-B08D-28BB9EB2281E} (PhotosCtrl Class) - http://photos.groups.yahoo.com/ocx/us/yexplorer1_9us.cab
O16 - DPF: {A17E30C4-A9BA-11D4-8673-60DB54C10000} (YahooYMailTo Class) - http://us.dl1.yimg.com/download.yahoo.com/dl/installs/yse/ymmapi_416.dll
O16 - DPF: {EFB22865-F3BC-4309-ADFA-C8E078A7F762} (SysWebTelecomInt Class) - http://www.sponsoradulto.com/es/SysWebTelecom.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab31267.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineSweeper.cab31267.cab
O16 - DPF: {6AD54F1E-D241-48B4-ACFF-37BA1B1BF7AD} (SMInstallCom Class) - http://ax.spymedic.co.kr/control/SpyMedicWebInst.cab
O16 - DPF: {9600F64D-755F-11D4-A47F-0001023E6D5A} (Shutterfly Picture Upload Plugin) - http://web1.shutterfly.com/downloads/Uploader.cab
O16 - DPF: {474F00F5-3853-492C-AC3A-476512BBC336} (UploadListView Class) - http://picasaweb.google.com/s/v/14.11/uploader2.cab
O17 - HKLM\System\CCS\Services\VxD\MSTCP: NameServer = 85.255.116.101,85.255.112.153

Hi Cinemático

Please download FixWareout from one of these sites:
http://downloads.subratam.org/Fixwareout.exe
http://www.bleepingcomputer.com/files/lonny/Fixwareout.exe

• Save it to your desktop and run it. Click Next, then Install, make sure Run fixit is checked and click Finish.
• The fix will begin; follow the prompts.
• You will be asked to reboot your computer; please do so.
• Your system may take longer than usual to load; this is normal.
• Once the desktop loads, post the text that will open (report.txt) and a new Hijackthis log in the forum please.

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