isass virus

[Complete novice]

Hi There folks!

i logged onto msn when i got a virus,
an isass exe keeps popping up and logs me onto msn messanger, also it wont allow me to get onto task manager.

help me

Logfile of HijackThis v1.99.0
Scan saved at 22:20:20, on 10/02/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\LEXPPS.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Program Files\D-Tools\daemon.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\Lexmark X1100 Series\lxbkbmgr.exe
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\Lexmark X1100 Series\lxbkbmon.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Messenger\msmsgs.exe
D:\hijackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.co.uk/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [DAEMON Tools-1033] "C:\Program Files\D-Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKLM\..\Run: [Lexmark X1100 Series] "C:\Program Files\Lexmark X1100 Series\lxbkbmgr.exe"
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [NvMsnW] C:\WINDOWS\system32\Isass.exe
O4 - HKLM\..\Run: [Isass] C:\WINDOWS\system32\Isass.exe
O4 - HKLM\..\RunServices: [NvMsnW] C:\WINDOWS\system32\Isass.exe
O4 - HKLM\..\RunServices: [Isass] C:\WINDOWS\system32\Isass.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
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: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: LexBce Server - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: Norton AntiVirus Auto-Protect Service - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service - Symantec Corporation - C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: NVIDIA Display Driver Service - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Program Files\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service - Symantec Corporation - C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Symantec Network Drivers Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: SoundMAX Agent Service - Analog Devices, Inc. - C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
O23 - Service: Symantec SPBBCSvc - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe

[pcschrottie]

1st, learn what you can do by yourself. Doing a search with google, for example. Open your Browser, enter "www.google.com" and then enter terms like 'isass.exe removal' and start the search. One of the results would be:

=> http://computercops.biz/postt13642.html

If you do not succeed with the informations in this link, post here again.

Michael

[Complete novice]

Hello again, Ive read through the link you posted. With little success. when i run my hijackthis log, quite a lot of isass.exe's appear......which one should i delete?

O4 - HKLM\..\Run: [NvMsnW] C:\WINDOWS\system32\Isass.exe
O4 - HKLM\..\Run: [Isass] C:\WINDOWS\system32\Isass.exe
O4 - HKLM\..\Run: [Anti] C:\WINDOWS\system32\Isass.exe
O4 - HKLM\..\RunServices: [NvMsnW] C:\WINDOWS\system32\Isass.exe
O4 - HKLM\..\RunServices: [Isass] C:\WINDOWS\system32\Isass.exe
O4 - HKLM\..\RunServices: [Anti] C:\WINDOWS\system32\Isass.exe

As you've probably guessed from the name....i'm pretty new to all this, but i've tried my anti virus etc......

Kind regards, CN

[pcschrottie]

which one should i delete?

These entries are all concerning the same file as you can see (Windows/system32/Isass.exe). Delte these entries with HijackThis. And delete the isass.exe file too. NOT the Lsass.exe.

Michael

[Complete novice]

Thanks for the help....all fixed now.

Many thanks, CN :D

[dlh6213]

Here's some info on isass.exe:
http://www.liutilities.com/products/wintaskspro/processlibrary/isass/

Make sure it's gone:

Reboot into Safe Mode

Open Windows Explorer, go to Tools, and in the Folder Options, select "Show hidden files and folders," and uncheck "Hide protected operating system files."

Delete this highlighted file (if found):

C:\WINDOWS\system32\isass.exe

Reboot normally