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  #1  
Old July 21st, 2004, 05:25 PM
jomacs jomacs is offline
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Post W2K - CPU at 100% - wincfg.exe 80% cpu utilization

I am looking at a customer's system that got a virus or something to the point of no internet access so I am relying on sneakernet right now .....

Ran McAfee stinger, kremove, & bremove
(downloaded yesterday) - It claimed it found
Exploit-DcomRpc.gen virus and fixed it as well as
Qhosts.apd trojan - which it claimed it fixed ... but I had
to manually edit the winnt\system32\drivers\etc\hosts file to
remove the bogus entries .....

After this the system was still pegged at 100% CPU usage
The processes/tasks using the cpu were:

wincfg.exe - using ~80% CPU
services.exe - using ~20% CPU

I killed/terminated the wincfg.exe process/task and the
system then acquiesced to normal resource usage including
services.exe usage dropping to 0%

I have run hijackthis and am including the output below
I can remove the entry for wincfg.exe and see if it stays gone
or comes back - but also wanted to put this out there to see
if anyone else has seen this - and to see if I missed anything
in the hijackthis log/output

Thanks in advance

jomacs

-----------------------------
Logfile of HijackThis v1.97.7
Scan saved at 2:33:18 PM, on 7/21/2004
Platform: Windows 2000 SP2 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINNT\system32\spoolsv.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\AdvTools\NPROTECT.EXE
C:\WINNT\system32\regsvc.exe
C:\Program Files\Norton AntiVirus\SAVScan.exe
C:\WINNT\system32\MSTask.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\System32\mspmspsv.exe
C:\WINNT\Explorer.EXE
C:\WINNT\System32\qttask.exe
C:\Program Files\Yahoo!\browser\ybrwicon.exe
C:\Program Files\SBC Yahoo!\Connection Manager\IP InSight\IPMon32.exe
C:\Program Files\2Wire\2PortalMon.exe
C:\PROGRA~1\Yahoo!\browser\ycommon.exe
C:\WINNT\System32\dllcon.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\AIM95\aim.exe
C:\WINNT\System32\taskmgr.exe
C:\Documents and Settings\administrator\Desktop\McAfee Virus Removal Tools\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = URL
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = URL
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = URL
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = URL
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = URL
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = URL
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = URL
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = URL
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = URL
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Common\ycomp5_1_6_0.dll
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - Toolbar: &Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Common\ycomp5_1_6_0.dll
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [QuickTime Task] C:\WINNT\System32\qttask.exe
O4 - HKLM\..\Run: [YBrowser] C:\Program Files\Yahoo!\browser\ybrwicon.exe
O4 - HKLM\..\Run: [IPInSightMonitor 01] "C:\Program Files\SBC Yahoo!\Connection Manager\IP InSight\IPMon32.exe"
O4 - HKLM\..\Run: [2wSysTray] C:\Program Files\2Wire\2PortalMon.exe
O4 - HKLM\..\Run: [Windows System Configuration] wincfg.exe
O4 - HKLM\..\Run: [MSN Update] dllcon.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [Advanced Tools Check] C:\PROGRA~1\NORTON~1\AdvTools\ADVCHK.EXE
O4 - HKLM\..\RunServices: [Windows System Configuration] wincfg.exe
O4 - HKLM\..\RunServices: [MSN Update] dllcon.exe
O4 - HKCU\..\Run: [AIM] C:\Program Files\AIM95\aim.exe -cnetwait.odl
O4 - HKCU\..\Run: [MSN Update] dllcon.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: Yahoo! Dictionary - file:///C:\Program Files\Yahoo!\Common/ycdict.htm
O8 - Extra context menu item: Yahoo! Search - file:///C:\Program Files\Yahoo!\Common/ycsrch.htm
O9 - Extra button: Yahoo! Login (HKLM)
O9 - Extra 'Tools' menuitem: Yahoo! Login (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Yahoo! Messenger (HKLM)
O9 - Extra button: AIM (HKLM)
O9 - Extra button: Related (HKLM)
O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - URL
O16 - DPF: {11260943-421B-11D0-8EAC-0000C07D88CF} (iPIX ActiveX Control) - URL
O16 - DPF: {A17E30C4-A9BA-11D4-8673-60DB54C10000} (YahooYMailTo Class) - URL
O16 - DPF: {B9191F79-5613-4C76-AA2A-398534BB8999} (YAddBook Class) - URL
O16 - DPF: {D18F962A-3722-4B59-B08D-28BB9EB2281E} (PhotosCtrl Class) - URL
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - URL

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  #2  
Old July 21st, 2004, 07:23 PM
jomacs jomacs is offline
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Smile Problem Solved - see this ref on sophos.com

see:

URL

This is the exact symptom I experienced on this system
I also had these exact entries in the registry ....
Removing the registry entries resolved the problem.

This is a very new W32 worm - sophos.com just put up a
standalone solution for their product on July 19, 2004

Trend Micro also has a similar worm (wincfg.exe involved)
with slightly different registry entries - First discovered
on July 12, 2004.

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