I seem to have a particularly nasty piece of spyware that I haven't been able to remove by conventional methods. Can someone take a look at this for me?

Logfile of HijackThis v1.99.1
Scan saved at 3:02:36 PM, on 1/2/2007
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\ibmpmsvc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\alg.exe
C:\WINDOWS\System32\Ati2evxx.exe
C:\Program Files\Symantec_Client_Security\Symantec AntiVirus\DefWatch.exe
C:\WINDOWS\system32\cba\pds.exe
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
C:\Program Files\Symantec_Client_Security\Symantec AntiVirus\Rtvscan.exe
C:\Program Files\Common Files\Intuit\Track-It!\PRISMXL.SYS
C:\WINDOWS\System32\QCONSVC.EXE
C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
C:\Program Files\RealVNC\VNC4\WinVNC4.exe
C:\WINDOWS\system32\cba\xfr.exe
C:\WINDOWS\system32\MsgSys.EXE
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Analog Devices\SoundMAX\Smtray.exe
C:\WINDOWS\AGRSMMSG.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\PROGRA~1\ThinkPad\PkgMgr\HOTKEY\TPHKMGR.exe
C:\PROGRA~1\ThinkPad\UTILIT~1\EzEjMnAp.Exe
C:\Program Files\ThinkPad\PkgMgr\HOTKEY\TPONSCR.exe
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\ThinkPad\PkgMgr\HOTKEY_1\TpScrex.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
C:\WINDOWS\System32\RunDll32.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\ctfmon.exe
C:\PROGRA~1\MICROS~4\wcescomm.exe
C:\Program Files\Google\GoogleToolbarNotifier\1.2.908.5008\GoogleToolbarNotifier.exe
C:\PROGRA~1\MICROS~4\rapimgr.exe
C:\Documents and Settings\oasjricci\Desktop\hijackthis\HijackThis.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\PROGRA~1\Yahoo!\COMPAN~1\Installs\cpn1\YTBSDK.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.onassignment.com/oahome.faces
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn2\yt.dll
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,,C:\LDCLIENT\SDISTHK.EXE
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn2\yt.dll
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\googletoolbar1.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn2\yt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [Smapp] C:\Program Files\Analog Devices\SoundMAX\Smtray.exe
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [TPHOTKEY] C:\PROGRA~1\ThinkPad\PkgMgr\HOTKEY\TPHKMGR.exe
O4 - HKLM\..\Run: [EZEJMNAP] C:\PROGRA~1\ThinkPad\UTILIT~1\EzEjMnAp.Exe
O4 - HKLM\..\Run: [BMMLREF] C:\Program Files\ThinkPad\Utilities\BMMLREF.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: [TP4EX] tp4ex.exe
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
O4 - HKLM\..\Run: [Synchronization Manager] %SystemRoot%\system32\mobsync.exe /logon
O4 - HKLM\..\Run: [BMMGAG] RunDll32 C:\PROGRA~1\ThinkPad\UTILIT~1\pwrmonit.dll,StartPwrMonitor
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\PROGRA~1\MICROS~4\wcescomm.exe"
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\1.2.908.5008\GoogleToolbarNotifier.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~4\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~4\INetRepl.dll
O9 - Extra 'Tools' menuitem: Create Mobile Favorite… - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~4\INetRepl.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
O10 - Unknown file in Winsock LSP: c:\program files\neoteris\secure application manager\samnsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\neoteris\secure application manager\samnsp.dll
O16 - DPF: ppctlcab - http://www.pestscan.com/scanner/ppctlcab.cab
O16 - DPF: {1D4DB7D2-6EC9-47A3-BD87-1E41684E07BB} - http://ak.exe.imgfarm.com/images/nocache/f…tup1.0.0.15.cab
O16 - DPF: {3299935F-2C5A-499A-9908-95CFFF6EF8C1} (Quicksilver Class) - http://scpwka.ops.placeware.com/etc/place/…quicksilver.cab
O16 - DPF: {928626A3-6B98-11CF-90B4-00AA00A4011F} (SurroundVideoCtrl Object) - http://www.homesteadhotels.com/minisite/ac…nd/MSSurVid.cab
O16 - DPF: {E5F5D008-DD2C-4D32-977D-1A0ADF03058B} (JuniperSetupSP1 Control) - https://www2.oapeople.com/dana-cached/setup…perSetupSP1.cab
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = oaifield.onasgn.com
O17 - HKLM\Software\..\Telephony: DomainName = oaifield.onasgn.com
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = oaifield.onasgn.com
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: Domain = oaifield.onasgn.com
O20 - Winlogon Notify: NavLogon - C:\WINDOWS\System32\NavLogon.dll
O23 - Service: Application Layer Gateway Services - Unknown owner - C:\WINDOWS\alg.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: DefWatch - Symantec Corporation - C:\Program Files\Symantec_Client_Security\Symantec AntiVirus\DefWatch.exe
O23 - Service: IBM PM Service (IBMPMSVC) - Unknown owner - C:\WINDOWS\System32\ibmpmsvc.exe
O23 - Service: Intel File Transfer - Intel® Corporation - C:\WINDOWS\system32\cba\xfr.exe
O23 - Service: Intel PDS - Intel® Corporation - C:\WINDOWS\system32\cba\pds.exe
O23 - Service: Symantec AntiVirus Client (Norton AntiVirus Server) - Symantec Corporation - C:\Program Files\Symantec_Client_Security\Symantec AntiVirus\Rtvscan.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\SYSTEM32\SPOOL\DRIVERS\W32X86\3\HPZipm12.exe
O23 - Service: PrismXL - Intuit, Inc. - C:\Program Files\Common Files\Intuit\Track-It!\PRISMXL.SYS
O23 - Service: QCONSVC - IBM Corp. - C:\WINDOWS\System32\QCONSVC.EXE
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
O23 - Service: VNC Server Version 4 (WinVNC4) - Unknown owner - C:\Program Files\RealVNC\VNC4\WinVNC4.exe" -service (file missing)