Question

"Bad Image", lsass.exe, explorer.exe, services.exe? Personal Antivirus Malware? gasfkytbaouusv.dll?

Asked by: bgillgps

A computer in our office appears to be infected with Malware that is causing many problems with the system.

The machine is running Windows XP SP3 and each time he boots, he gets more messages stating that globalroot\system32\gasfkytbaouusv.dll is not a valid Windows image. This message will reappear for many exe files, including Explorer.exe, userinit.exe, services.exe, lsass.exe, cmd.exe and more.

We have Kaspersky, which identifies it as a Trojan Virus. It tries to disinfect or delete the file, reboots, and the same messages reappear.

We have started in Safe Mode and run SpyBot Search & Destroy, which tried to clean it as well.

I ran chkdsk c:\ which states it can only run on reboot... however, upon reboot it does not run.

Does anyone have a solution to this problem?

Thanks,
Brian

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Asked On
2009-09-22 at 12:46:36ID24752842
Tags

gasfkytbaouusv.dll

,

bad image

,

lsass.exe

,

explorer.exe

,

services.exe

Topics

Windows XP Operating System

,

Desktop Anti-Virus

,

Anti-Spyware

Participating Experts
4
Points
500
Comments
9

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Answers

 

by: optomaPosted on 2009-09-22 at 12:54:01ID: 25396842

Try kasperskys live cd
http://devbuilds.kaspersky-labs.com/devbuilds/RescueDisk/
May delete trojan

 

by: MichaelIanClaridgePosted on 2009-09-22 at 12:55:07ID: 25396856

Hello,

I commented on something of the same nature in another EE post:-

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Windows/XP/Q_24671431.html

Hope this helps

Michael

 

by: rpggamergirlPosted on 2009-09-23 at 01:29:55ID: 25400915

It's definitely a bad file... whether it's gone or not it's still hooked with executables.

Try running Fixswen and or UnHookExec.inf
Download and run FixSwen
http://www.geekstogo.com/forum/Cannot-Run-any-EXE-files-nor-McAfee-t250975.html
* Download Fixswen and save it to your desktop
* Right-click on the file and choose "install"
http://download.nai.com/products/mcafee-avert/Fixswen.inf

Download the file UnHookExec.inf and save it to your Windows desktop.
http://securityresponse.symantec.com/avcenter/UnHookExec.inf
Right-click the UnHookExec.inf file and click install.



Also try running MalwareBytes or Combofix(rename the files prior to saving them to the desktop) you can even change the extensions to .com if it still won't run.

1.  Download MalwareBytes:
http://download.cnet.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html?part=dl-10804572&subj=dl&tag=button

NOTE: Save the installer file to your desktop and rename it to installer.com then run the file.
Once MBAM is installed, you then locate and rename mbam.exe to mbam.com

Click on the renamed file to run it and then perform a quickscan.
Allow it to delete what it finds and then allow the computer to reboot.

This will allow MBAM to run and remove the rogue install + repair the hijack on the running of other exe files.




2. OR, download ComboFix by sUBs:
http://download.bleepingcomputer.com/sUBs/ComboFix.exe

NOTE: You need to rename Combofix to CF.bat prior to saving the file to your desktop.
Make sure the 'Save as Type:' is "All Files"

Now STOP all your monitoring programs (Antivirus/Antispyware, Guards and Shields) as they could easily interfere with ComboFix.
Double click combofix.exe & follow the prompts.
When finished, it will produce a log. Please save that log and attach it in your next reply by pasting it in the "Code Snippet" or "Attach File" window.
Re-enable all the programs that were disabled during the running of ComboFix..

Note:
Do not mouse-click combofix's window while it is running. That may cause it to stall.

CF disconnects your machine from the internet. The connection is automatically restored before CF completes its run. If CF runs into difficulty and terminates prematurely, the connection can be manually restored by restarting your machine.


 

by: bgillgpsPosted on 2009-09-23 at 12:22:36ID: 25406862

Malware Bytes ended up solving the problem, then I needed to go into the Startup folder and anywhere else where this existed.

It apparently arose with the "Personal Antivirus" malware that infected the system and started causing all of these problems. Kaspersky could see it, but didn't seem to do anything about it.

Malwarebytes found it, removed it, and ran chkdsk, Kaspersky, SpyBot S&D, and Malwarebytes again and the computer is clean.

 

by: Vee_ModPosted on 2009-09-24 at 08:50:58ID: 25414650

Stopping auto-close to award points to Expert suggestion.

Vee_Mod
Community Support Moderator

 

by: bgillgpsPosted on 2009-09-24 at 09:15:31ID: 31632148

Too many solutions offered that weren't specific to the problem. One of them solved them, but I ended up leaving this page and getting the answer elsewhere.

 

by: rpggamergirlPosted on 2009-09-25 at 05:42:21ID: 25422349

Thank you very much Vee_Mod, much appreciated.

20120131-EE-VQP-002

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