OK, I'm pretty certain I'm infected with the DELF.EP (or is it DELP.EF?) trojan. I have msshed32.exe on my machine, which (according to Google scans) tends to be a good signal of this. I've downloaded and run HijackTHis and XoftSpy since suspecting the infection, and my system has NAV, NIS, Ad-Aware SE and SpywareBlaster on it to try and detect/prevent this sort of infection.
Here's the HijackThis log:
Logfile of HijackThis v1.98.2
Scan saved at 11:34:09, on 09/12/2004
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Norton Internet Security\NISUM.EXE
C:\Program Files\Norton Internet Security\ccPxySvc.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\Norton SystemWorks\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton SystemWorks\Norton Utilities\NPROTECT.EXE
C:\WINDOWS\system32\IoctlSvc.exe
C:\PROGRA~1\NORTON~1\SPEEDD~1\nopdb.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
E:\Program Files\PDF Printer Pilot SE\PDFPRPRXY.EXE
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I0H2.EXE
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Prolific\USB Flash Disk Utility\PLBkMon.exe
C:\WINDOWS\System32\HotfixQ0306270.exe
C:\Program Files\Spam Inspector Outlook Express\Spam Inspector Outlook Express Edition\piiserviceOE.exe
C:\Program Files\Thomson\SpeedTouch USB\Dragdiag.exe
C:\Program Files\Common Files\Symantec Shared\Security Center\UsrPrmpt.exe
C:\WINDOWS\System32\ctfmon.exe
C:\WINDOWS\System32\msshed32.exe
C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\System32\devldr32.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINDOWS\System32\wuauclt.exe
C:\Documents and Settings\Nick\Desktop\HiJack THis\HijackThis.exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.dysartes.com/phpBB2/index.php
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton SystemWorks\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton SystemWorks\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
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: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [PDFPrinterPilotAgent] "E:\Program Files\PDF Printer Pilot SE\PDFPRPRXY.EXE"
O4 - HKLM\..\Run: [EPSON Stylus Photo R200 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I0H2.EXE /P30 "EPSON Stylus Photo R200 Series" /O6 "USB001" /M "Stylus Photo R200"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Prolific_PLUtil] C:\Program Files\Prolific\USB Flash Disk Utility\PLBkMon.exe
O4 - HKLM\..\Run: [PLFFAP] C:\WINDOWS\System32\HotfixQ0306270.exe
O4 - HKLM\..\Run: [piiserviceOE] "C:\Program Files\Spam Inspector Outlook Express\Spam Inspector Outlook Express Edition\piiserviceOE.exe"
O4 - HKLM\..\Run: [SpeedTouch USB Diagnostics] "C:\Program Files\Thomson\SpeedTouch USB\Dragdiag.exe" /icon
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKLM\..\Run: [SSC_UserPrompt] C:\Program Files\Common Files\Symantec Shared\Security Center\UsrPrmpt.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [atiupdate] C:\DOCUME~1\Nick\LOCALS~1\Temp\msshed32.exe
O4 - Startup: PowerReg Scheduler V3.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: InterVideo WinCinema Manager.lnk = C:\Program Files\InterVideo\Common\Bin\WinCinemaMgr.exe
O8 - Extra context menu item: &Google Search - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: Backward Links - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Cached Snapshot of Page - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Similar Pages - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Translate into English - res://c:\program files\google\GoogleToolbar2.dll/cmtrans.html
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O16 - DPF: {39B0684F-D7BF-4743-B050-FDC3F48F7E3B} (FilePlanet Download Control Class) - http://www.fileplanet.com/fpdlmgr/cabs/FPDC_1_0_0_44.cab
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://software-dl.real.com/26de604e0af321ebb700/netzip/RdxIE601.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.com/v5consumer/V5Controls/en/x86/client/wuweb_site.cab?1098927612875
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{0E071442-3BF3-4F34-B00A-023C6A884FDA}: NameServer = 194.168.4.100 194.168.8.100
O17 - HKLM\System\CS1\Services\Tcpip\..\{0E071442-3BF3-4F34-B00A-023C6A884FDA}: NameServer = 194.168.4.100 194.168.8.100
Any suggestions on what to do to kill this little begagr would be much appreciated.