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Command Prompt open and close randomly after my pc got infected with koobface


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#1 katsuky

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Posted 17 September 2016 - 05:39 AM

Hello friends. A short while ago my pc was infected with what I think is called Koobface malware. I followed the removal instruction for self help online and got my PC back to working status. Everything seems fine except I notice that my command prompt keep opening and quickly closing at random time. I have tried rescanning with adwareremoval and malwarebyte but the problem keep on persisting. I notice that the command prompt problem would appear a few minutes after i start window, then after that about every half an hour or so. This problem is very annoying since it would alt tab out of programs.

Any ideas if I'm still infected with malware or is this some other problem?

I'm using windows 10 by the way.



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#2 nasdaq

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Posted 17 September 2016 - 09:34 AM

Hello, Welcome to BleepingComputer.
I'm nasdaq and will be helping you.

If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps in the order listed.
===

Download the version of this tool for your operating system.
Farbar Recovery Scan Tool (64 bit)
Farbar Recovery Scan Tool (32 bit)
and save it to a folder on your computer's Desktop.
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.

How to attach a file to your reply:
In the Reply section in the bottom of the topic Click the "more reply Options" button.
attachlogs.png

Attach the file.
Select the "Choose a File" navigate to the location of the File.
Click the file you wish to Attach.

Click the Add reply button.
===

Please post the logs for my review.

#3 katsuky

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Posted 17 September 2016 - 04:38 PM

Hi and thank you for helping me with the problem.

I have attached the requested logs.

 

Attached Files



#4 nasdaq

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Posted 18 September 2016 - 08:11 AM

Hello, Welcome to BleepingComputer.
I'm nasdaq and will be helping you.

If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps in the order listed.
===

Press the windows key Windows_Logo_key.gif+ r on your keyboard at the same time. This will open the RUN BOX.
Type Notepad and and click the OK key.
Please copy the entire contents of the code box below to the a new file.
 
start

CreateRestorePoint:
EmptyTemp:
CloseProcesses:

ShellIconOverlayIdentifiers: [00avast] -> {472083B0-C522-11CF-8763-00608CC02F24} =>  No File
HKLM\SOFTWARE\Policies\Microsoft\Internet Explorer: Restriction <======= ATTENTION
HKU\S-1-5-21-1725768451-201692221-1948187255-1001\SOFTWARE\Policies\Microsoft\Internet Explorer: Restriction <======= ATTENTION
CHR Extension: (????????????[ChromeApps?]) - C:\Users\Duc\AppData\Local\Google\Chrome\User Data\Default\Extensions\eablgejicbklomgaiclcolfilbkckngf [2016-08-28]
CHR Extension: (Chrome Web Store Payments) - C:\Users\Duc\AppData\Local\Google\Chrome\User Data\Default\Extensions\nmmhkkegccagdldgiimedpiccmgmieda [2016-08-28]
S2 ZAMSvc; "C:\Program Files (x86)\Zemana AntiMalware\ZAM.exe" /service [X]
U0 aswVmm; no ImagePath
S1 ZAM; \??\C:\windows\System32\drivers\zam64.sys [X]
C:\Users\Duc\AppData\Local\Google\Chrome\User Data\Default\Extensions\eablgejicbklomgaiclcolfilbkckngf
C:\Users\Duc\AppData\Local\Google\Chrome\User Data\Default\Extensions\nmmhkkegccagdldgiimedpiccmgmieda
Task: {3BD5774C-FC8A-43E0-B638-923E4494AA90} - \OneDrive Standalone Update Task -> No File <==== ATTENTION
Task: {62BB83A8-BC14-442E-AD86-F5736D9C48EE} - \DropboxUpdateTaskMachineUA -> No File <==== ATTENTION
Task: {7FB0F610-848A-44F6-A4F0-1736EB6987C7} - \DropboxOEM -> No File <==== ATTENTION
Task: {BFF2EEF6-F211-4FED-8359-BC01F9780131} - \DropboxUpdateTaskMachineCore -> No File <==== ATTENTION
C:\Users\Duc\AppData\Local\Temp\7DFC.tmp.exe

End
Save the file as fixlist.txt in the same folder where the Farbar tool is running from.
The location is listed in the 3rd line of the Farbar log you have submitted.

Run FRST and click Fix only once and wait.

Restart the computer normally to reset the registry.

The tool will create a log (Fixlog.txt) please post it to your reply.
===

If the problem persists please run this cleaning tool.

Temporarily disable your AV program so it does not interfere.
Info on how to disable your security applications How To Temporarily Disable Your Anti-virus, Firewall And Anti-malware Programs - Security Mini-Guides.

Download Zeok tool from here

When the download appears, save to the Desktop.
On the Desktop, right-click the Zoek.exe file and select: Run as Administrator
(Give it a few seconds to appear.)

Next, copy/paste the entire script inside the code box below to the input field of Zoek:
createsrpoint;
autoclean;
emptyclsid;
emptyffcache;
FFdefaults;
emptyiecache;
iedefaults;
emptychrcache;
CHRdefaults;
emptyalltemp;
emptyfolderscheck;delete
ipconfig /flushdns;b
Now...
Close any open Browsers.
Click the Run script button, and wait. It takes a few minutes to run all the script.

When the tool finishes, the zoek-results.log is opened in Notepad.
The log is also found on the systemdrive, normally C:\
If a reboot is needed, the log is opened after the reboot.

Please attach the zoek-results.log in your reply.
===

Also, please provide an update on how the computer is behaving after running the above script.

#5 katsuky

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Posted 18 September 2016 - 02:18 PM

Hello, I have made the fixlist and ran FRST as instructed.

I have attached the fixlog.

I will let you know if the problem persists and I have to do the second option.

For now I'll wait and see if FRST have fixed the problem.

Attached Files



#6 katsuky

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Posted 19 September 2016 - 01:39 AM

Used my pc for half a day and did not see the command prompt popping up anymore.

I think the problem is fixed.

Thank you very much for your help.



#7 nasdaq

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Posted 19 September 2016 - 08:35 AM

If all is well.

To learn more about how to protect yourself while on the internet read this little guide best security practices keep safe.
http://www.bleepingcomputer.com/forums/t/407147/answers-to-common-security-questions-best-practices/

#8 nasdaq

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Posted 24 September 2016 - 08:49 AM

It appears that this issue is resolved, therefore I am closing the topic. If that is not the case and you need or wish to continue with this topic, please send me or any Moderator a Personal Message (PM) that you would like this topic re-opened.




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