Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Persistent Win32/BHO.NZK variant


  • This topic is locked This topic is locked
2 replies to this topic

#1 greghl

greghl

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:02:36 AM

Posted 21 December 2010 - 01:35 PM

I'm trying to clean up a computer remotely and this trojan keeps appearing in C:\windows\system32\yxgnfvce.dll - ESET antivirus can't seem to clean it up (reports as being locked when the system restarts to clean it) - I have tried unregistering the DLL, which reports that it is unregistered, but lo-and-behold, the little fella comes back and back again.

While I'm actually working on this machine remotely (using logmein) - I have seen some explorer memory faults - the windows explorer crashes, restarts and then it's all good for a while.

Any and all help gratefully received!!

Here is a DDS log:


DDS (Ver_10-12-12.02) - FAT32x86
Run by User at 10:04:35.37 on Tue 12/21/2010
Internet Explorer: 8.0.6001.18702 BrowserJavaVersion: 1.6.0_23
Microsoft Windows XP Home Edition 5.1.2600.3.1252.1.1033.18.1982.1321 [GMT -8:00]

AV: ESET NOD32 Antivirus 4.2 *Enabled/Updated* {E5E70D32-0101-4F12-8FB0-D96ACA4F34C0}

============== Running Processes ===============

C:\WINDOWS\system32\svchost -k DcomLaunch
C:\WINDOWS\system32\svchost -k rpcss
C:\WINDOWS\System32\svchost.exe -k netsvcs
C:\WINDOWS\system32\svchost.exe -k NetworkService
C:\WINDOWS\system32\svchost.exe -k LocalService
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\svchost.exe -k LocalService
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\ESET\ESET NOD32 Antivirus\ekrn.exe
C:\WINDOWS\system32\svchost.exe -k hpdevmgmt
C:\Program Files\Java\jre6\bin\jqs.exe
C:\WINDOWS\LMI124.tmp\LMI_Rescue_srv.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\System32\svchost.exe -k HPZ12
C:\WINDOWS\System32\svchost.exe -k HPZ12
C:\WINDOWS\system32\svchost.exe -k imgsvc
C:\Program Files\Common Files\Pure Networks Shared\Platform\nmsrvc.exe
C:\Program Files\ESET\ESET NOD32 Antivirus\egui.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\LMI124.tmp\LMI_Rescue.exe
C:\WINDOWS\System32\svchost.exe -k HTTPFilter
C:\WINDOWS\explorer.exe
C:\WINDOWS\system32\notepad.exe
C:\WINDOWS\LMI124.tmp\LMI_Rescue_srv.exe
C:\WINDOWS\system32\msiexec.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Documents and Settings\User\My Documents\Downloads\dds.scr
C:\WINDOWS\system32\wbem\wmiprvse.exe

============== Pseudo HJT Report ===============

uSearchMigratedDefaultURL = hxxp://www.google.com/search?q={searchTerms}&sourceid=ie7&rls=com.microsoft:en-US&ie=utf8&oe=utf8
uStart Page = hxxp://www.google.com/
uInternet Settings,ProxyOverride = *.local
uSearchURL,(Default) = hxxp://www.google.com/search?q=%s
BHO: AutorunsDisabled - No File
BHO: Adobe PDF Link Helper: {18df081c-e8ad-4283-a596-fa578c2ebdc3} - c:\program files\common files\adobe\acrobat\activex\AcroIEHelperShim.dll
BHO: : {65c9305a-4d4a-4978-93d5-5385d8fab74b} - c:\windows\system32\mvlzjwc.dll
BHO: Java™ Plug-In 2 SSV Helper: {dbc80044-a445-435b-bc74-9c25c1c588a9} - c:\program files\java\jre6\bin\jp2ssv.dll
BHO: JQSIEStartDetectorImpl Class: {e7e6f031-17ce-4c07-bc86-eabfe594f69c} - c:\program files\java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
uRun: [ctfmon.exe] c:\windows\system32\ctfmon.exe
mRun: [egui] "c:\program files\eset\eset nod32 antivirus\egui.exe" /hide /waitservice
mRun: [Adobe Reader Speed Launcher] "c:\program files\adobe\reader 10.0\reader\Reader_sl.exe"
mRun: [Adobe ARM] "c:\program files\common files\adobe\arm\1.0\AdobeARM.exe"
dRunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe
IE: {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe
IE: {FB5F1910-F110-11d2-BB9E-00C04F795683} - c:\program files\messenger\msmsgs.exe
IE: {92780B25-18CC-41C8-B9BE-3C9C571A8263} - {FF059E31-CC5A-4E2E-BF3B-96E929D65503} - c:\progra~1\micros~1\office11\REFIEBAR.DLL
DPF: {17492023-C23A-453E-A040-C7C580BBF700} - hxxp://download.microsoft.com/download/8/b/d/8bd77752-5704-4d68-a152-f7252adaa4f2/LegitCheckControl.cab
DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} - hxxp://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1227659013718
DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} - hxxp://java.sun.com/update/1.6.0/jinstall-1_6_0_23-windows-i586.cab
DPF: {CAFEEFAC-0016-0000-0023-ABCDEFFEDCBA} - hxxp://java.sun.com/update/1.6.0/jinstall-1_6_0_23-windows-i586.cab
DPF: {CAFEEFAC-FFFF-FFFF-FFFF-ABCDEFFEDCBA} - hxxp://java.sun.com/update/1.6.0/jinstall-1_6_0_23-windows-i586.cab
DPF: {E06E2E99-0AA1-11D4-ABA6-0060082AA75C} -
Handler: pure-go - {4746C79A-2042-4332-8650-48966E44ABA8} - c:\program files\common files\pure networks shared\platform\puresp4.dll
Notify: tkcderci - mvlzjwc.dll
SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - c:\windows\system32\WPDShServiceObj.dll

================= FIREFOX ===================

FF - ProfilePath - c:\docume~1\user\applic~1\mozilla\firefox\profiles\68ag0qtn.default\
FF - prefs.js: browser.startup.homepage - hxxp://www.google.com
FF - plugin: c:\program files\google\update\1.2.183.39\npGoogleOneClick8.dll
FF - plugin: c:\program files\java\jre6\bin\new_plugin\npdeployJava1.dll
FF - plugin: c:\program files\mozilla firefox\plugins\npatgpc.dll
FF - plugin: c:\program files\mozilla firefox\plugins\npicaN.dll
FF - Ext: Default: {972ce4c6-7e08-4474-a285-3208198ce6fd} - c:\program files\mozilla firefox\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}
FF - Ext: Java Console: {CAFEEFAC-0016-0000-0023-ABCDEFFEDCBA} - c:\program files\mozilla firefox\extensions\{CAFEEFAC-0016-0000-0023-ABCDEFFEDCBA}
FF - Ext: Microsoft .NET Framework Assistant: {20a82645-c095-46ed-80e3-08825760534b} - %profile%\extensions\{20a82645-c095-46ed-80e3-08825760534b}
FF - Ext: Microsoft .NET Framework Assistant: {20a82645-c095-46ed-80e3-08825760534b} - c:\windows\microsoft.net\framework\v3.5\windows presentation foundation\DotNetAssistantExtension

---- FIREFOX POLICIES ----
FF - user.js: yahoo.homepage.dontask - true

============= SERVICES / DRIVERS ===============

R0 dueavlel;dueavlel;c:\windows\system32\drivers\dueavlel.sys --> c:\windows\system32\drivers\dueavlel.sys [?]
R0 xfilt;VIA SATA IDE Hot-plug Driver;c:\windows\system32\drivers\xfilt.sys [2007-11-20 17920]
R1 BIOS;BIOS;c:\windows\system32\drivers\BIOS.sys [2007-8-16 13696]
R1 BS_I2cIo;BS_I2cIo;c:\windows\system32\drivers\BS_I2cIo.sys [2008-11-25 6272]
R1 ehdrv;ehdrv;c:\windows\system32\drivers\ehdrv.sys [2010-7-29 115008]
R1 epfwtdir;epfwtdir;c:\windows\system32\drivers\epfwtdir.sys [2010-8-3 95896]
R2 ekrn;ESET Service;c:\program files\eset\eset nod32 antivirus\ekrn.exe [2010-11-4 810144]
R2 LMIRescue_a7550cf8-be51-48b1-8786-d3c8f9428c04;LogMeIn Rescue (a7550cf8-be51-48b1-8786-d3c8f9428c04);c:\windows\lmi124.tmp\LMI_Rescue_srv.exe [2010-12-20 1874808]
S1 SpyEmrg;Spy Emergency Driver;c:\windows\system32\drivers\spyemrg.sys --> c:\windows\system32\drivers\spyemrg.sys [?]
S2 gupdate;Google Update Service (gupdate);c:\program files\google\update\GoogleUpdate.exe [2010-12-20 136176]
S3 BS_Flash;BS_Flash;\??\c:\program files\bios update\award\bs_flash.sys --> c:\program files\bios update\award\BS_Flash.sys [?]
S3 esihdrv;esihdrv;\??\c:\docume~1\user\locals~1\temp\esihdrv.sys --> c:\docume~1\user\locals~1\temp\esihdrv.sys [?]
S3 SVQEHE;SVQEHE;c:\docume~1\user\locals~1\temp\svqehe.exe --> c:\docume~1\user\locals~1\temp\SVQEHE.exe [?]
UnknownUnknown vkquwexg;vkquwexg; [x]

=============== Created Last 30 ================

2010-12-21 14:15:28 -------- d-sha-r- C:\cmdcons
2010-12-21 14:11:32 98816 ----a-w- c:\windows\sed.exe
2010-12-21 14:11:32 89088 ----a-w- c:\windows\MBR.exe
2010-12-21 14:11:32 256512 ----a-w- c:\windows\PEV.exe
2010-12-21 14:11:32 161792 ----a-w- c:\windows\SWREG.exe
2010-12-21 05:02:37 -------- d-----w- c:\docume~1\user\locals~1\applic~1\ESET
2010-12-21 02:23:59 472808 ----a-w- c:\windows\system32\deployJava1.dll
2010-12-21 02:23:59 472808 ----a-w- c:\program files\mozilla firefox\plugins\npdeployJava1.dll
2010-12-21 02:14:25 -------- d-sh--w- c:\documents and settings\user\IECompatCache
2010-12-21 02:07:33 -------- d-----w- c:\program files\CCleaner
2010-12-21 02:04:40 -------- d-----w- c:\docume~1\user\locals~1\applic~1\Temp
2010-12-21 01:51:37 -------- d-----w- c:\windows\LMI124.tmp
2010-12-19 23:05:41 -------- d-----w- c:\docume~1\user\applic~1\Malwarebytes
2010-12-19 23:05:36 38224 ----a-w- c:\windows\system32\drivers\mbamswissarmy.sys
2010-12-19 23:05:34 -------- d-----w- c:\docume~1\alluse~1.win\applic~1\Malwarebytes
2010-12-19 23:05:31 20952 ----a-w- c:\windows\system32\drivers\mbam.sys
2010-12-19 23:05:30 -------- d-----w- c:\program files\Malwarebytes' Anti-Malware
2010-12-15 05:22:46 40960 ------w- c:\windows\system32\dllcache\ndproxy.sys
2010-12-15 05:19:49 45568 ------w- c:\windows\system32\dllcache\wab.exe
2010-12-12 18:29:04 -------- d-----w- C:\FOUND.008
2010-12-11 21:11:00 -------- d-----w- C:\FOUND.007
2010-12-10 14:28:02 444216 ----a-w- c:\program files\mozilla firefox\plugins\webex\1025\atgpcext.dll
2010-12-10 14:28:00 113976 ----a-w- c:\program files\mozilla firefox\plugins\webex\1025\atgpcdec.dll
2010-12-10 14:27:56 171320 ----a-w- c:\program files\mozilla firefox\plugins\npatgpc.dll

==================== Find3M ====================

2010-12-21 17:27:24 143360 ----a-w- c:\windows\system32\yxgnfvce.dll
2010-12-21 14:23:40 103424 ----a-w- c:\windows\system32\vwppztn.dll
2010-12-21 14:23:40 103424 ----a-w- c:\windows\system32\mvlzjwc.dll
2010-11-18 18:12:44 81920 ----a-w- c:\windows\system32\isign32.dll
2010-11-13 00:34:10 73728 ----a-w- c:\windows\system32\javacpl.cpl
2010-11-06 00:26:58 916480 ----a-w- c:\windows\system32\wininet.dll
2010-11-06 00:26:58 43520 ----a-w- c:\windows\system32\licmgr10.dll
2010-11-06 00:26:58 1469440 ------w- c:\windows\system32\inetcpl.cpl
2010-11-03 12:25:54 385024 ----a-w- c:\windows\system32\html.iec
2010-10-28 13:13:22 290048 ----a-w- c:\windows\system32\atmfd.dll
2010-10-26 13:27:10 1862272 ----a-w- c:\windows\system32\win32k.sys

============= FINISH: 10:05:05.18 ===============

Attached:

Attach.txt from the DDS run
gmer.log output with IAT/EAT unchecked and scanning only the C: drive.

Attached Files



BC AdBot (Login to Remove)

 


#2 Elise

Elise

    Bleepin' Blonde


  • Malware Study Hall Admin
  • 61,243 posts
  • OFFLINE
  •  
  • Gender:Female
  • Location:Romania
  • Local time:10:36 AM

Posted 30 December 2010 - 06:28 AM

Hello ,
And :welcome: to the Bleeping Computer Malware Removal Forum
. My name is Elise and I'll be glad to help you with your computer problems.


I will be working on your malware issues, this may or may not solve other issues you may have with your machine.

Please note that whatever repairs we make, are for fixing your computer problems only and by no means should be used on another computer.
  • The cleaning process is not instant. Logs can take some time to research, so please be patient with me. I know that you need your computer working as quickly as possible, and I will work hard to help see that happen.
  • Please reply using the Add/Reply button in the lower right hand corner of your screen. Do not start a new topic.
  • The logs that you post should be pasted directly into the reply. Only attach them if requested or if they do not fit into the post.
  • Unfortunately, if I do not hear back from you within 5 days, I will be forced to close your topic. If you still need help after I have closed your topic, send me or a moderator a personal message with the address of the thread or feel free to create a new one.
You may want to keep the link to this topic in your favorites. Alternatively, you can click the button at the top bar of this topic and Track this Topic, where you can choose email notifications. The topics you are tracking are shown here.
-----------------------------------------------------------

If you have since resolved the original problem you were having, we would appreciate you letting us know. If not please perform the following steps below so we can have a look at the current condition of your machine.

If you have not done so, include a clear description of the problems you're having, along with any steps you may have performed so far.

If you have already posted a log, please do so again, as your situation may have changed.
Use the 'Add Reply' and add the new log to this thread.

We need to see some information about what is happening in your machine. Please perform the following scan:
  • Please download OTL from one of the following mirrors:
  • Save it to your desktop.
  • Double click on the Posted Image icon on your desktop.
  • Click the "Scan All Users" checkbox.
  • Push the Quick Scan button.
  • Two reports will open, copy and paste them in a reply here:
    • OTListIt.txt <-- Will be opened
    • Extra.txt <-- Will be minimized

Please Download Rootkit Unhooker Save it to your desktop.
  • Now double-click on RKUnhookerLE.exe to run it.
  • Click the Report tab, then click Scan.
  • Check (Tick) Drivers, Stealth,. Uncheck the rest. then Click OK.
  • Wait till the scanner has finished and then click File, Save Report.
  • Save the report somewhere where you can find it. Click Close.
Copy the entire contents of the report and paste it in a reply here.

Note - if you get the following warning, just ignore: "Rootkit Unhooker has detected a parasite inside itself!
It is recommended to remove parasite, okay?"

Click on Cancel, then Accept.

-------------------------------------------------------------
In the meantime please, do NOT install any new programs or update anything unless told to do so while we are fixing your problem

If you still need help, please include the following in your next reply
  • A detailed description of your problems
  • A new OTL log (don't forget extra.txt)
  • RKU log

Thanks and again sorry for the delay.

regards, Elise


"Now faith is the substance of things hoped for, the evidence of things not seen."

 

Follow BleepingComputer on: Facebook | Twitter | Google+ | lockerdome

 

Malware analyst @ Emsisoft


#3 Elise

Elise

    Bleepin' Blonde


  • Malware Study Hall Admin
  • 61,243 posts
  • OFFLINE
  •  
  • Gender:Female
  • Location:Romania
  • Local time:10:36 AM

Posted 08 January 2011 - 06:20 AM

Due to the lack of feedback, this topic is now closed.In the event you still have problems, please send me or any Moderator a Private Message and ask them to reopen this topic within the next 5 days.

regards, Elise


"Now faith is the substance of things hoped for, the evidence of things not seen."

 

Follow BleepingComputer on: Facebook | Twitter | Google+ | lockerdome

 

Malware analyst @ Emsisoft





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users