Another dllhost.exe COM Surrogate trojan

[Nishant]

Hello,

I see multiple posts on the same dllhost.exe mushrooming issue, and I tried to remove it following the other posts, but it seems like it's still buried in my system somewhere and continues to crop back up. I've attached requested logs to start, would very much appreciate your expertise.

Thank you,
Nishant

 

[argus]

Helllo,

Before we begin, please note the following:

• I will working be on your Malware issues, this may or may not, solve other issues you have with your machine.
• The logs can take some time to research, so please be patient with me.
• Stay with the topic until I tell you that your system is clean. Missing symptoms does not mean that everything is okay.
• Instructions that I give are for your system only!
• Please do not run any tools until requested ! The reason for this is so I know what is going on with the machine at any time. Some programs can interfere with others and hamper the recovery process.
• Please perform all steps in the order received. If you can't understand something don't hesitate to ask.
• Again I would like to remind you to make no further changes to your computer unless I direct you to do so. I will not help you if you do not follow my instructions.

=========================================



Download

Malwarebytes Anti-Rootkit to your desktop.

• Double-click the icon to start the tool.
• It will ask you where to extract it, then it will start.
• Warning! Malwarebytes Anti-Rootkit needs to be run from an account with administrator rights.
• Click in the introduction screen "next" to continue.
• Click in the following screen "Update" to obtain the latest malware definitions.
• Once the update is complete select "Next" and click "Scan".
• When the scan is finished and no malware has been found select "Exit".
• If malware was detected, make sure to check all the items and click "Cleanup". Reboot your computer.
• Open the MBAR folder and paste the content of the following files in your next reply:
  • "mbar-log-{date} (xx-xx-xx).txt"
  • "system-log.txt"

Scan with Farbar Recovery Scan Tool
Please re-run Farbar Recovery Scan Tool to give me a fresh look at your system.

• Right-click on
  
  icon and select
  
  Run as Administrator to start the tool.
  (XP users click run after receipt of Windows Security Warning - Open File).
• 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 into your next reply.

 

[Nishant]

Ok, thanks. Doing that now.

 

[argus]

Re-run Farbar

 

[Nishant]

Scanned and attached logs.

 

[argus]

Fix with Farbar Recovery Scan Tool

This fix was created for this user for use on that particular machine.

Running it on another one may cause damage and render the system unstable.

​

Download attached fixlist.txt file and save it to the Desktop:

Both files, FRST and fixlist.txt have to be in the same location or the fix will not work!

• Right-click on
  
  icon and select
  
  Run as Administrator to start the tool.
  (XP users click run after receipt of Windows Security Warning - Open File).
• Press the Fix button just once and wait.
• If for some reason the tool needs a restart, please make sure you let the system restart normally. After that let the tool complete its run.
• When finished FRST will generate a log on the Desktop, called Fixlog.txt.

Please attach it to your reply.

 

[Nishant]

Applied fix, restarted, and log attached.

 

[argus]

How is the situation now?

 

[Nishant]

So far so good - do I need to do anything else?

 

[Nishant]

Just saw a dllhost.exe COM Surrogate pop up and disappear in my Tasks on its own. Is that OK?

 

[argus]

Scan with ZOEK

Please download ZOEK by Smeenk and save it to your desktop (preferred version is the *.exe one)
Temporary disable your AntiVirus and AntiSpyware protection - instructions here.

• Right-click on
  
  icon and select
  
  Run as Administrator to start the tool.
• Wait patiently until the main console will appear, it may take a minute or two.
• In the main box please paste in the following script:
  

  createsrpoint;
  emptyfolderscheck;delete
  Quickscan;
  autoclean;
  emptyalltemp;

• Make sure that Scan All Users option is checked.
• Push Run Script and wait patiently. The scan may take a couple of minutes.
• When the scan completes, a zoek-results logfile should open in notepad.
• If a reboot is needed, it will be opened after it. You may also find it at your main drive (usually C:\ drive)

Post its content into your next reply.

 

[Nishant]

Log attached.

 

[argus]

Re-run zoek and run this script:

C:\Users\Nishant\AppData\Roaming\????;fs
autoclean;
emptyalltemp;
ipconfig /flushdns;b

 

[Nishant]

Log won't attach, here's the text after the latest:


Zoek.exe v5.0.0.0 Updated 10-November-2014
Tool run by Nishant on Tue 11/11/2014 at 0:02:26.07.
Microsoft Windows 7 Home Premium 6.1.7601 Service Pack 1 x64
Running in: Normal Mode Internet Access Detected
Launched: C:\Users\Nishant\Desktop\zoek.exe [Scan all users] [Script inserted]

==== Older Logs ======================

C:\zoek-results2014-11-10-231818.log 33141 bytes

==== Deleting CLSID Registry Keys ======================


==== Deleting CLSID Registry Values ======================


==== Deleting Services ======================


==== Batch Command(s) Run By Tool======================


==== Deleting Files \ Folders ======================

C:\Users\Nishant\AppData\Local\CrashRpt deleted

==== Firefox Extensions Registry ======================

[HKEY_LOCAL_MACHINE\Software\Wow6432Node\Mozilla\Firefox\Extensions]
"{23fcfd51-4958-4f00-80a3-ae97e717ed8b}"="C:\Program Files (x86)\DivX\DivX Plus Web Player\firefox\DivXHTML5" [10/11/2012 08:12 PM]

==== Chromium Look ======================

HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions
nneajnkjbffgblleaoojgaacokifdkhm - C:\Program Files (x86)\DivX\DivX Plus Web Player\chrome\DivXHTML5\DivXHTML5.crx[12/12/2011 05:13 AM]

HKEY_CURRENT_USER\SOFTWARE\Google\Chrome\Extensions
apdfllckaahabafndbhieahigkjlhalf - C:\Users\Nishant\AppData\Local\Google\Drive\apdfllckaahabafndbhieahigkjlhalf_live.crx[04/17/2014 04:46 PM]

Google Voice Search Hotword (Beta) - Nishant\AppData\Local\Google\Chrome\User Data\Default\Extensions\bepbmhgboaologfdajaanbcjmnhjmhfn
Google Cast - Nishant\AppData\Local\Google\Chrome\User Data\Default\Extensions\boadgeojelhgndaghljhdicfkmllpafd
Windows Media Player Extension for HTML5 - Nishant\AppData\Local\Google\Chrome\User Data\Default\Extensions\hokdglbhghcebcopdbanieangmcamaak

==== Chromium Fix ======================

C:\Users\Nishant\AppData\Local\Google\Chrome\User Data\Default\Local Storage\https_workplaceservices400.fidelity.com_0.localstorage deleted successfully
C:\Users\Nishant\AppData\Local\Google\Chrome\User Data\Default\Local Storage\https_workplaceservices400.fidelity.com_0.localstorage-journal deleted successfully

==== Set IE to Default ======================

Old Values:
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]
"Start Page"="http://go.microsoft.com/fwlink/p/?LinkId=255141"

New Values:
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]
"Start Page"="http://go.microsoft.com/fwlink/p/?LinkId=255141"

==== All HKCU SearchScopes ======================

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\SearchScopes
"DefaultScope"="{2C1A73EC-0311-455D-8CB1-57DD8BC31970}"
{012E1000-F331-11DB-8314-0800200C9A66} Google Url="http://www.google.com/search?q={searchTerms}"
{0633EE93-D776-472f-A0FF-E1416B8B2E3A} Bing Url="http://www.bing.com/search?q={searchTerms}&src=IE-SearchBox&FORM=IE11SR"
{2C1A73EC-0311-455D-8CB1-57DD8BC31970} Google Url="http://www.google.com/search?q={sea...tartIndex={startIndex?}&startPage={startPage}"

==== Empty IE Cache ======================

C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5 emptied successfully
C:\Users\Nishant\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5 emptied successfully
C:\Windows\SysNative\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5 emptied successfully
C:\Windows\sysWoW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5 emptied successfully
C:\Windows\sysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5 emptied successfully

==== Empty FireFox Cache ======================

No FireFox Profiles found

==== Empty Chrome Cache ======================

C:\Users\Nishant\AppData\Local\Google\Chrome\User Data\Default\Cache emptied successfully

==== Empty All Flash Cache ======================

Flash Cache Emptied Successfully

==== Empty All Java Cache ======================

Java Cache cleared successfully

==== C:\zoek_backup content ======================

C:\zoek_backup (files=228 folders=52 96118562 bytes)

==== Empty Temp Folders ======================

C:\Users\Default\AppData\Local\Temp emptied successfully
C:\Users\Default User\AppData\Local\Temp emptied successfully
C:\Users\Nishant\AppData\Local\Temp will be emptied at reboot
C:\Windows\serviceprofiles\networkservice\AppData\Local\Temp emptied successfully
C:\Windows\serviceprofiles\Localservice\AppData\Local\Temp emptied successfully
C:\Windows\Temp will be emptied at reboot

==== After Reboot ======================

==== Empty Temp Folders ======================

C:\Windows\Temp successfully emptied
C:\Users\Nishant\AppData\Local\Temp successfully emptied

==== Empty Recycle Bin ======================

C:\$RECYCLE.BIN successfully emptied

==== EOF on Tue 11/11/2014 at 0:25:36.08 ======================

 

[argus]

How is the situation now?

 

[Nishant]

Looks good so far! Thank you!

Anything else I need to do?

 

[argus]

Very good.


Download DelFix by Xplode and save it to your desktop.

• Run the tool by right click on the
  
  icon and Run as administrator option.
• Make sure that these ones are checked:
  • Remove disinfection tools
  • Purge system restore
  • Reset system settings
• Push Run and wait until the tool completes his work.
• All tools we used should be gone. Tool will create an report for you (C:\DelFix.txt)

The tool will also record healthy state of registry and make a backup using ERUNT program in %windir%\ERUNT\DelFix
Tool deletes old system restore points and create a fresh system restore point after cleaning.