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Multiple dllhost.exe processes and IE showing up in Application when not running


TimNH
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I have two accounts on a computer (one newly created).  One has some type of infection that causes multiple dllhost.exe to appear in the processes.  In addition, on the applications tab there are several incidences of Internet Explorer showing up, even though Internet Explorer is not open. (see screenshots in attachments).

 

Malwarebytes Anti-Malware shows not infection.  The newly created account shows no sign of infection and is fine.

 

Can someone help me figure out what is going on.  I know I need to run FRST, but show I do that from the infected account or the uninfected account or does it matter.

 

Thank you. :unsure:

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Hello and welome,

 

P2P/Piracy Warning:

 

If you're using Peer 2 Peer software such as uTorrent, BitTorrent or similar you must either fully uninstall them or completely disable them from running while being assisted here.Failure to remove or disable such software will result in your topic being closed and no further assistance being provided.If you have illegal/cracked software, cracks, keygens etc. on the system, please remove or uninstall them now and read the policy on Piracy.

 

Run the following from an account with administrator status:

 

Download Farbar Recovery Scan Tool and save it to your desktop.

 

Note: You need to run the version compatible with your system (32 bit or 64 bit). If you are not sure which version applies to your system download both of them and try to run them. Only one of them will run on your system, that will be the right version.


Double-click to run it. When the tool opens click Yes to disclaimer.
Press Scan button.
It will make a log (FRST.txt) in the same directory the tool is run. Please copy and paste it to your reply.
The first time the tool is run, it makes also another log (Addition.txt). Please attach it to your reply.

 

Post the two logs....

 

Kevin

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I see ESETPoweliksCleaner.exe on your system, did you run that tool, was it successful....

 

Please download RogueKiller and save it to your desktop from the following link: http://www.bleepingcomputer.com/download/roguekiller/

 


Quit all running programs.
For Windows XP, double-click to start.
For Vista,Windows 7/8, Right-click on the program and select Run as Administrator to start and when prompted allow it to run.
Read and accept the EULA (End User Licene Agreement)
Click Scan to scan the system.
When the scan completes select "Report", log will open. Close the program > Don't Fix anything!
Post back the report which should also be located here:

 

C:\Programdata\RogueKiller\Logs <-------- W7/8

C:\Documents and Settings\All Users\Application Data\RogueKiller\Logs <------XP

 

Thanks,

 

Kevin...

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Not seeing anything obviously malicious or infected, run the following:

 

Read the following link before we continue and run Combofix:

ComboFix usage, Questions, Help? - Look here

Next,

Download Combofix from either of the following links :-

http://download.bleepingcomputer.com/sUBs/ComboFix.exe

http://www.infospyware.net/antimalware/combofix/

  • Ensure that Combofix is saved directly to the Desktop <--- Very important
  • Disable all security programs as they will have a negative effect on Combofix, instructions available here  http://www.bleepingcomputer.com/forums/topic114351.html if required. Be aware the list may not have all programs listed, if you need more help please ask.
  • Close any open browsers and any other programs you might have running
  • Double click the combofix.gif icon to run the tool (Vista or Windows 7 users right click and select "Run as Administrator)
  • Instructions for running Combofix available here http://www.bleepingcomputer.com/combofix/how-to-use-combofix if required.
  • If you are using windows XP It might display a pop up saying that "Recovery console is not installed, do you want to install?" Please select yes & let it download the files it needs to do this. Once the recovery console is installed Combofix will then offer to scan for malware. Select continue or yes.
  • When finished, it will produce a report for you. Please post the "C:\ComboFix.txt" for further review



****Note: Do not mouseclick combofix's window while it's running. That may cause it to stall or freeze ****

Note: ComboFix may reset a number of Internet Explorer's settings, including making it the default browser.
Note: Combofix prevents autorun of ALL CDs, floppies and USB devices to assist with malware removal & increase security. If this is an issue or makes it difficult for you -- please tell us when you reply. Read here  http://thespykiller.co.uk/index.php?page=20 why  disabling autoruns is recommended.

*EXTRA NOTES*


  •    
  • If Combofix detects any Rootkit/Bootkit activity on your system it will give a warning and prompt for a reboot, you must allow it to do so.
       
  • If Combofix reboot's due to a rootkit, the screen may stay black for several minutes on reboot, this is normal
       
  • If after running Combofix you receive any type of warning message about registry key's being listed for deletion when trying to open certain items, reboot the system and this will fix the issue (Those items will not be deleted)



Post the log in next reply please...

Kevin
 

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What is the current status of your system, are there any remaining issues or concerns?

 

We still need to run an online AV scan to ensure there are no remnants of any infection left on your system that may have been missed. This scan is very thorough and well worth running, it can take several hours please be patient and let it complete:

 

Run Eset Online Scanner

 

**Note** You will need to use Internet explorer for this scan - Vista and Windows 7/8 right click on IE shortcut and run as admin.

 

(To run ESET Online Scanner in a browser other than Internet Explorer, you'll need to download ESET SMART  Installer during the process)

 

Go to Eset web page http://www.eset.com/us/online-scanner/ to run an online scan from ESET.

 


Turn off the real time scanner of any existing antivirus program while performing the online scan
click on the Run ESET Online Scanner button
Tick the box next to YES, I accept the Terms of Use.
Click Start
When asked, allow the add/on to be installed
Click Start
Make sure that the option "Remove found threats"  is Ticked
Click on Advanced Settings, ensure the following options are checked:
 
Scan for potentially unsafe applications
Enable Anti-Stealth Technology
 
Click Scan
wait for the virus definitions to be downloaded
Wait for the scan to finish

 

When the scan is complete

 


If no threats were found
put a checkmark in "Uninstall application on close"
close program
report to me that nothing was found

 

If threats were found

 


click on "list of threats found"
click on "export to text file" and save it as ESET SCAN and save to the desktop
Click on back
put a checkmark in "Uninstall application on close"
click on finish

 

close program

 

Copy and paste the report in next reply.

 

Thanks,

 

Kevin.

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After combo fix the dllhost.exe still remained as well the multiple incidences of Internet Explorer (as show in original post screenshot).

 

Ran ESET online scanner via FireFox (IE would not allow add on)

 

ESET SCAN.txt attached below.

 

Scan was ran using the "infected" account "Tim Heidner".  The other account still shows no evidence of infection.

 

ESET SCAN.txt

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Run FRST from the "Tim Heidner" account, ensure all boxes are checkmarked under "Whitelist" ensure only Addition.txt is checkmarked under "Optional scan"

Hit the scan tab, when complete post the two produced logs....

 

Please note I will be offline 13:00hrs UK time today 31/12/2014 until 17:00hrs 01/01/2015

 

Thanks,

 

Kevin....

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From the same account run the following:

 

Download attached fixlist.txt file (end of reply) and save it to the Desktop, or the folder you saved FRST into.

NOTE. It's important that both FRST and fixlist.txt are in the same location or the fix will not work.

 

Run FRST and press the Fix button just once and wait.

The tool will make a log on the Desktop (Fixlog.txt) or the folder it was ran from. Please post it to your reply.

 

Next,

 

Download RKill from here: http://www.bleepingcomputer.com/download/rkill/

 

There are three buttons to choose from with different names on, select the first one and save it to your desktop.

 

 


  •  

     


  • Double-click on the Rkill desktop icon to run the tool.

     

     


  • If using Vista or Windows 7/8, right-click on it and Run As Administrator.

     

     


  • A black DOS box will briefly flash and then disappear. This is normal and indicates the tool ran successfully.

     

     


  • A log pops up at the end of the run. This log file is located at C:\rkill.log. Please post this in your next reply.

     

     


  • If you do not see the black box flash on the screen delete the icon from the desktop and go back to the link for the download, select the next button and try to run the tool again, continue to repeat this process using the remaining buttons until the tool runs. You will find further links if you scroll down the page with other names, try them one at a time.

     

     


  • If the tool does not run from any of the links provided, please let me know.

     

     



 

 

Next,

 

Please download RogueKiller and save it to your desktop from the following link: http://www.bleepingcomputer.com/download/roguekiller/

 

 


  •  

     


  • Quit all running programs.

     

     


  • For Windows XP, double-click to start.

     

     


  • For Vista,Windows 7/8, Right-click on the program and select Run as Administrator to start and when prompted allow it to run.

     

     


  • Read and accept the EULA (End User Licene Agreement)

     

     


  • Click Scan to scan the system.

     

     


  • When the scan completes select "Report", log will open. Close the program > Don't Fix anything!

     

     


  • Post back the report which should also be located here:

     

     



 

 

C:\Programdata\RogueKiller\Logs <-------- W7/8

C:\Documents and Settings\All Users\Application Data\RogueKiller\Logs <------XP

 

Let me see those logs in your next reply....

 

Thanks,

 

Kevin

Fixlist.txt

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Run the following from problem account:

 

1.Download Malwarebytes Anti-Rootkit from this link:

 

 http://www.malwarebytes.org/products/mbar/

 

2. Unzip the File to a convenient location. (Recommend the Desktop)

3. Open the folder where the contents were unzipped to run mbar.exe

 

Image1.png

 

4. Double-click on the mbar.exe file, you may receive a User Account Control prompt asking if you are sure you wish to allow the program to run. Please allow the program to run and MBAR will now start to install any necessary drivers that are required for the program to operate correctly. If a rootkit is interfering with the installation of the drivers you will see a message that states that the DDA driver was not installed and that you should reboot your computer to install it. You will see this image:

 

mbarwm.png

 

5. If you receive this message, please click on the Yes button and Malwarebytes Anti-Rootkit will now restart your computer. Once the computer is rebooted and you login, MBAR will automatically start and you will now be at the start screen. (If no Rootkit warning you will go from step 4 to 6.)

 

6. The following image opens, select Next.

 

Image2.png

 

7. The following image opens, select Update

 

Image3.png

 

8. When the update completes select Next.

 

Image4.png

 

9. In the following window ensure "Targets" are ticked. Then select "Scan"

 

Image5.png

 

10. If an infection is found select the "Cleanup Button" to remove threats, Reboot if prompted. Wait while the system shuts down and the cleanup process is performed.

 

MBAntiRKcleanA.png

 

11. Perform another scan with Malwarebytes Anti-Rootkit to verify that no threats remain. If they do, then click "Cleanup Button" once more and repeat the process.

12. If no threats were found you will see the following image, Select Exit:

 

Image6.png

 

13. Verify that your system is now running normally, making sure that the following items are functional:

 


      Internet access
      Windows Update
      Windows Firewall

 

14.  If there are additional problems with your system, such as any of those listed above or other system issues, then run the 'fixdamage' tool included within Malwarebytes Anti-Rootkit folder.

 

15. Select "Y" from your Keyboard, tap Enter.

 

16. The fix will be applied, select any key to Exit.

 

17. Let me know how your system now responds. Copy and paste the two following logs from the mbar folder:

 

System - log

Mbar - log   Date and time of scan will also be shown

 

Thanks,

 

Kevin...

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Thanks for the update, we will need to clean up, remove tools etc when ready. When the account deletion completes run FRST one more time, ensure all boxes are checkmarked under "Whitelist" also only Addition.txt under "Optional scan"

 

Next,

 

Open Malwarebytes Anti-Malware, from the Dashboard please Check for Updates by clicking the Update Now... link

When the update completes select > Settings > Detection and Protection > Enable Scan for rootkit and Under Non Malware Protection set both PUP and PUM to Treat detections as malware.

 

 

Click on the SCAN button and run a Threat Scan with Malwarebytes Anti-Malware by clicking the Scan Now>> button.

 

When the scan is complete, if there have been detections, click Apply Actions to allow MBAM to clean what was detected.

 

 

In most cases, a restart will be required.

 

 

Wait for the prompt to restart the computer to appear, then click on Yes.

 

 

When the scan is completed from the main GUI click on History > Application Logs. Find your scan log, the date when run will identify it. Checkmark "select" box > then hit the "view" button. The history log window will open. At the bottom of that window are two options, "Copy to clipboard" and "Export"

Select > "Copy to clipboard" that copies the full log to the windows clipboard, so at your reply you right click into the text field and select "Paste" the log is pasted (copied) to  your reply.

 

Or select "Export" you are given the option to export as a Text file (*.txt) or XML file (*.xml) Choose text file, save the exported file to a place of your choice. That file can be attached to your reply...

 

Let me see those logs, also give an update on any remaining issues or concerns...

 

Thank you,

 

Kevin...

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Logs look good, run the following to clean up:

 

Download and run this:

 

http://download.bleepingcomputer.com/sUBs/CF_UNINST.EXE

 

That will remove Combofix and associated folders...

 

Next,

 

Download "Delfix by Xplode" and save it to your desktop.

 

Or use the following if first link is down:

 

"Delfix link mirror"

 

Double Click to start the program. If you are using Vista or higher, please right-click and choose run as administrator

 

Make Sure the following items are checked:

 

 


    Activate UAC
    Remove disinfection tools
     Create registry backup
    Purge System Restore
    Reset system settings

 

Now click on "Run" and wait patiently until the tool has completed.

 

The tool will create a log when it has completed. We don't need you to post this.

 

Part of the routine will be to create a registry back up with ERUNT,  the back up will be created here:

 

C:\Windows\ERUNT

 

When all is known to be well with your system you can delete that back up folder if you consider it as not needed...

 

Any remnant files/logs from tools we have used can be deleted…

 

Next,

 

Read the following link to fully understand PC security and best practices, you may find it useful....

 

http://www.bleepingcomputer.com/forums/t/407147/answers-to-common-security-questions-best-practices/#entry2316629

 

Let me know if we are ok to close out.....

 

Thank you,

 

Kevin...

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II have created an account "Omega Alpha" so I can keep "Protect Account" for Emergencies.  Whenever I try and use Internet Explorer on the "omega alpha) account it wants to run mdm.exe.  If I refuse IE stops responding. 

 

This is the only problem I have found.

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