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Persisting Trojan called Dllhost.exe*32 from COM Surrogate


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#1 Rix M.

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Posted 29 October 2014 - 09:02 PM

So.

 

I've found this problem few days ago  after a command prompt looking window quickly popped up and disappeared again. Then the computer ran slowly and picture files loaded with insanely slow speed. CPU indicator was stubbornly stuck at 100%. Opening up task manager found numerous dllhost. exe from COM Surrogate.

 

I tried to end process and open up file location in hopes of wiping it like you would to uninstall a toolbar from Uninstalling Programs but it said access denied. I am no professional, and after viewing many posts on this site who experienced the same problem as I did, I downloaded RogueKiller and found a Trojan, after deletion the dllhosts disappeared until only one remains. But after a few days, and after the same quickly disappearing window, my CPU spiked around 97-100%.

 

I ran RogueKiller again and again, deleted the same Trojan, but the dllhosts are still there. Is it the same Trojan or did I click on the same link that gave me the virus the first time? And would ComboFix be recommended here?

 

Assuming logs are needed and I don't know which, so here are both from DDS and FRST.

 

Thanks in advance.

Attached Files



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#2 HelpBot

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Posted 04 November 2014 - 03:55 PM

Hello and welcome to Bleeping Computer!

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    • Please do this even if you have previously posted logs for us.
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  • Double click on the DDS icon, allow it to run.
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#3 Rix M.

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Posted 04 November 2014 - 07:53 PM

If nothing else, the resetting security and internet options every time this thing rears its ugly head is very annoying.

 

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#4 Naathim

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Posted 05 November 2014 - 01:53 AM


Minion%20Welcome.jpg


My name's Naathim and I'm a GeekU Minion! Now that we are mates and will be working together to clean your machine out of any junkware, feel free to call me Naat :)

Before we start please note the following:

icon_arrow.gif Analysis and research take some time, also sometimes real life gets in the way, please be patient.
icon_arrow.gif Limit your internet access to posting here, some infections just wait to steal typed-in passwords.
icon_arrow.gif Don't run any scripts or tools on your own, unsupervised usage may cause more harm than good.
icon_arrow.gif Paste the logs in your posts, attachments make my work harder and more complicated.
icon_arrow.gif Stay with me to the end, the absence of symtoms doesn't mean that your machine is fully operational.
icon_arrow.gif Note that we may live in totally different time zones, what may cause some delays between answers.

icon_idea.gif I can't foresee everything, so if anything unexpected happens, please stop and inform me!
icon_idea.gif There are no silly questions. Never be afraid to ask if in doubt!

Let's start and enjoy the fight! :)


Sorry to keep you waiting for so long, but we are really overwhelmed here. I need some fresh logs.


FRST.gif Scan with Farbar Recovery Scan Tool

Please re-run Farbar Recovery Scan Tool.

  • Right-click on FRST.gif icon and select RunAsAdmin.jpg Run as Administrator to start the tool.
    > XP users click run after receipt of Windows Security Warning - Open File.
    > 8 users will be prompted about Windows SmartScreen protection - click More information and Run.
  • Make sure that Addition option is checked.
  • Press Scan button and wait.
  • The tool will produce two logfiles on your desktop: FRST.txt and Addition.txt.

Please include their content in your next reply.


Radek Naathim Pawelczyk

Malware Removal Specialist

 

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#5 Rix M.

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Posted 06 November 2014 - 07:57 PM

 

 

 

Attached Files

  • Attached File  FRST.txt   40.56KB   1 downloads


#6 Naathim

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Posted 07 November 2014 - 02:04 AM

Hi :)



ESETOnline.png Scan with ESET Poweliks Cleaner

Please download ESET Poweliks Cleaner and save the file to your desktop.
  • Right-click on ESETOnline.png icon and select RunAsAdmin.jpg Run as Administrator to start the tool.
  • If the tool will find Poweliks, you will be prompted Win32/Poweliks found in your system.
  • Press Y to continue the removal.
  • You should be noted that the tool succesfully removed the threat from your system.
  • The tool will also produce a logfile on your desktop, named ESETPoweliksCleaner_Date.Time.
Please attach this file to your next reply. To do so:
- after typing in your message, click More reply options instead of Post.
- below the post preview and the post editor, you should be able to see Attach files option - please click Choose file.
- in the pop-up window navigate to the desktop. Choose the one named ESETPoweliksCleaner_Date.Time.log and attach it.

If the file will be to big to attach it (it may happen), then please host it on a Dropbox account or a site like mediafire.com, providing me the link to the uploaded file.

Radek Naathim Pawelczyk

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#7 Rix M.

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Posted 07 November 2014 - 09:16 PM

K.

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#8 Naathim

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Posted 12 November 2014 - 03:37 AM

Hello and I am terribly sorry for the delay, I was totally out for the last days. Post back if you are still around and we will continue.

Radek Naathim Pawelczyk

Malware Removal Specialist

 

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#9 Rix M.

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Posted 12 November 2014 - 06:16 PM

Okay.



#10 Naathim

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Posted 13 November 2014 - 02:06 AM

Once again please accept my sincere apologies. Since a couple of days passed, please provide me a fresh description of your state and a new set of reports.



FRST.gif Scan with Farbar Recovery Scan Tool

Please re-run Farbar Recovery Scan Tool.
  • Right-click on FRST.gif icon and select RunAsAdmin.jpg Run as Administrator to start the tool.
    > XP users click run after receipt of Windows Security Warning - Open File.
    > 8 users will be prompted about Windows SmartScreen protection - click More information and Run.
  • Make sure that Addition option is checked.
  • Press Scan button and wait.
  • The tool will produce two logfiles on your desktop: FRST.txt and Addition.txt.
Please include their content in your next reply.

Radek Naathim Pawelczyk

Malware Removal Specialist

 

staff.png


#11 Rix M.

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Posted 13 November 2014 - 07:39 PM

Also, the Malwarebytes keeps blocking things called blinkxcore and filmsites. The explorer.exe is eating up CPU like mad.

 

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#12 Naathim

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Posted 14 November 2014 - 02:50 AM

Is this a corporate machine?

Radek Naathim Pawelczyk

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#13 Rix M.

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Posted 15 November 2014 - 02:52 PM

No, it's a home computer.



#14 Naathim

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Posted 17 November 2014 - 08:08 AM

Hi :)



51a5bf3d99e8a-ComboFixlogo16.png Scan with ComboFix

This is a very powerful tool that should be used only if advised by Malware Analyst.
Do not run ComboFix on your own!


Referring to this instruction, please download ComboFix by sUBs and save it to your desktop.
Temporary disable your AntiVirus and AntiSpyware protection - instructions here.
If you are a user of CD emulation software (like Daemon Tools or Alcohol) also disable it for the cleaning process - instructions here.
  • Right-click on 51a5bf3d99e8a-ComboFixlogo16.png icon and select RunAsAdmin.jpg Run as Administrator to start the tool.
  • Accept the disclaimer and agree if prompted to install Recovery Console.
  • Do not take any actions while ComboFix goes through your System - it may cause it to stall!
  • This scan may take some time!
  • When finished - it will display a logfile (located also on your main drive, usually C:\ComboFix.txt).
Include that log in your next reply.
icon_idea.gif If you'll encounter any issues with internet connection after running ComboFix, please visit this link.
icon_idea.gif If an error about operation on the key marked for deletion will appear after running the tool, please reboot your machine.
icon_idea.gif Don't forget to re-enable your previously switched-off protection software!

Radek Naathim Pawelczyk

Malware Removal Specialist

 

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#15 Rix M.

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Posted 20 November 2014 - 12:38 AM

K.

Attached Files

  • Attached File  log.txt   56.3KB   2 downloads





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