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Explorer.exe Creates Kernel32-threads


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#1 Bryndahl

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Posted 20 April 2007 - 03:21 PM

Hi there specialists.

On our home computer (win XP home edition) we have five users. When logging on to one specific user, explorer.exe creates two kernel32.dll-threads that use up almost all CPU space. The problem doesn’t occur on any other user. No hit on antivirus or Ad-Aware checks.

I’m able to kill the kernel32-threads with Process Explorer, but at the next log on, the problem’s back. I tried to replace the kernel32-file in c:\windows\system32, without any luck. Explore.exe lies where it should in c:\windows so it doesn’t seem to be a fake explorer file. I even tried to create a new user and just copy important files like “my documents” and “address book” to the new user, but the problem remains.

I searched the web for solutions but nothing seems to really fit this specific problem. Could someone please help?

The HiJackThis-file looks the same whether the kernel32-threads are running or not. Here it is:

Logfile of HijackThis v1.99.1
Scan saved at 08:15:14, on 2007-04-21
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16414)

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:\Program\Delade filer\Symantec Shared\ccSetMgr.exe
C:\Program\Delade filer\Symantec Shared\ccEvtMgr.exe
C:\Program\Delade filer\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program\Symantec AntiVirus\DefWatch.exe
C:\WINDOWS\system32\svchost.exe
C:\Program\Symantec AntiVirus\Rtvscan.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program\Delade filer\Symantec Shared\ccApp.exe
C:\Program\SYMANT~1\VPTray.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Documents and Settings\Kristina\Skrivbord\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.se/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Länkar
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program\google\googletoolbar4.dll
O4 - HKLM\..\Run: [ccApp] "C:\Program\Delade filer\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [vptray] C:\Program\SYMANT~1\VPTray.exe
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: E&xportera till Microsoft Excel - res://C:\Program\MICROS~4\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {B205A35E-1FC4-4CE3-818B-899DBBB3388C} - C:\Program\Delade filer\Microsoft Shared\Encarta Search Bar\ENCSBAR.DLL
O9 - Extra button: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Documents and Settings\Filip\Mina dokument\PartyPoker\RunApp.exe (file missing)
O9 - Extra 'Tools' menuitem: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Documents and Settings\Filip\Mina dokument\PartyPoker\RunApp.exe (file missing)
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program\Messenger\msmsgs.exe
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {00B71CFB-6864-4346-A978-C0A14556272C} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab31267.cab
O16 - DPF: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/Messe...nt.cab31267.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {215B8138-A3CF-44C5-803F-8226143CFC0A} (Trend Micro ActiveX Scan Agent 6.6) - http://eu-housecall.trendmicro-europe.com/...ivex/hcImpl.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binary/MineS...er.cab31267.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://by112fd.bay112.hotmail.msn.com/resources/MsnPUpld.cab
O16 - DPF: {512FC5A1-7DE1-43F1-BC0C-371622FCB409} (Installer Class) - http://www.nanoscan.com/as/v1/cabs/ascinstie.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/Messe...nt.cab31267.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/binary/ZIntro.cab53083.cab
O16 - DPF: {C4925E65-7A1E-11D2-8BB4-00A0C9CC72C3} (Virtools WebPlayer Class) - http://a532.g.akamai.net/7/532/6712/6c5b0a...5/Installer.exe
O16 - DPF: {E6187999-9FEC-46A1-A20F-F4CA977D5643} (ZoneChess Object) - http://messenger.zone.msn.com/binary/Chess.cab31267.cab
O16 - DPF: {F6BF0D00-0B2A-4A75-BF7B-F385591623AF} (Solitaire Showdown Class) - http://messenger.zone.msn.com/binary/Solit...wn.cab31267.cab
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\Program\MSNMES~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\Program\MSNMES~1\MSGRAP~1.DLL
O20 - Winlogon Notify: NavLogon - C:\WINDOWS\system32\NavLogon.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program\Delade filer\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program\Delade filer\Symantec Shared\ccSetMgr.exe
O23 - Service: Symantec AntiVirus Definition Watcher (DefWatch) - Symantec Corporation - C:\Program\Symantec AntiVirus\DefWatch.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program\Delade filer\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\Program\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: Norman API-hooking helper (NipSvc) - Unknown owner - C:\Norman\Nvc\BIN\nipsvc.exe (file missing)
O23 - Service: SAVRoam (SavRoam) - symantec - C:\Program\Symantec AntiVirus\SavRoam.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program\Delade filer\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc (SPBBCSvc) - Symantec Corporation - C:\Program\Delade filer\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec AntiVirus - Symantec Corporation - C:\Program\Symantec AntiVirus\Rtvscan.exe

Does someone know what this is? Please help….?

Edited by Bryndahl, 21 April 2007 - 01:47 AM.


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#2 Buckeye_Sam

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Posted 28 April 2007 - 11:49 AM

Hi and welcome to Bleeping Computer! My name is Sam and I will be helping you. :thumbsup:
I apologize for the delay getting to your log, the helpers here are very busy.

I'm not seeing any indication of malware, but let's take a closer look.

Please download Deckard's System Scanner (DSS)

1. Download Deckard's System Scanner (DSS) to your Desktop (or other convenient location).
2. Close any open applications and windows.
3. Double-click on dss.exe to run it, and follow the prompts.
4. When the scan is complete, a text file will open - main.txt
5. Copy the text from that log and paste it into your post.

Note: Some firewalls may warn that sigcheck.exe is trying to access the internet. Please allow it permission to do so.
Posted Image If I have helped you in any way, please consider a donation to help me continue the fight against malware.


Failing to respond back to the person that is giving up their own time to help you not only is insensitive and disrespectful, but it guarantees that you will never receive help from me again. Please thank your helpers and there will always be help here when you need it!


========================================================

#3 Buckeye_Sam

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Posted 06 May 2007 - 08:20 AM

As there has been no response, this thread will now be closed.

If you need this topic reopened, please contact a member of the HJT Team and we will reopen it for you.
Include the address of this thread in your request.
Posted Image If I have helped you in any way, please consider a donation to help me continue the fight against malware.


Failing to respond back to the person that is giving up their own time to help you not only is insensitive and disrespectful, but it guarantees that you will never receive help from me again. Please thank your helpers and there will always be help here when you need it!


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