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PC infected with trojan


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21 replies to this topic

#1 rora

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Posted 31 October 2015 - 05:34 AM

Hello,

 

I accidentally downloaded and ran a .js file that was sent to my email and since then I have been experiencing unwanted popups in firefox. After running Windows Defender on my Windows 8 laptop it has detected the 2 trojanhorses:

 

Trojan:Win32/Miuref!rfn

Trojan:Win32/Pearls.E!plock

 

 

I have removed the detected trojans using Windows Defender. After removing those I have scanned using FRST and I have attached the results of the scan. Any help is appreciated. 

 

Thanks

_Rora

Attached Files



BC AdBot (Login to Remove)

 


#2 Jo*

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Posted 31 October 2015 - 05:43 AM

:welcome:

Hello rora,

my name is Jo and I will help you with your computer problems.


Please follow these guidelines:
  • Logs can take a while to research, so please be patient.
  • Read and follow the instructions in the sequence they are posted.
  • print or copy & save instructions.
  • back up all your private data / important files on another (external) drive before using our tools.
  • Do not install / uninstall any applications, unless otherwise instructed.
  • Use only that tools you have been instructed to use.
  • Copy and Paste the log files inside your post, unless otherwise instructed.
  • Ask for clarification, if you have any questions.
  • Stay with this topic til you get the all clean post.
  • My first language is not english. So please do not use slang or idioms. It could be hard for me to read. Thanks for your understanding.

***


Download Security Check by screen317 from here or here.
  • Save it to your Desktop.
  • Double click SecurityCheck.exe and follow the onscreen instructions inside of the black box.
    Vista / Windows 7/8 users right-click and select Run As Administrator.
  • A Notepad document should open automatically called checkup.txt; please post the contents of that document.

***


Please download Malwarebytes Anti-Rootkit and save it to your desktop.
  • Be sure to print out and follow the instructions provided on that same page.
  • Caution: This is a beta version so please be sure to read the disclaimer and back up all your data before using.
  • Scan your system for malware
With some infections, you may see two messages boxes.
  • 'Could not load protection driver'. Click 'OK'.
  • 'Could not load DDA driver'. Click 'Yes' to this message, to allow the driver to load after a restart. Allow the computer to restart. Continue with the rest of these instructions.
  • If malware is found - do not press the Clean up button, please go to the MBAR folder and then copy/paste the contents of the MBAR-log-***.txt file to your next reply.
  • If there is no malware found, please let me know as well.

***


Please download AdwCleaner by Xplode and save to your Desktop.
Double-click AdwCleaner.exe
Vista / Windows 7/8 users right-click and select Run As Administrator.
  • Click on the Scan button.
  • AdwCleaner will begin...be patient as the scan may take some time to complete.
    When the scan has finished, the actual line should say "Pending. Please uncheck elements you do not want to remove" => scan is complete.
  • After the scan has finished, click on the Report button...a logfile (AdwCleaner[R0].txt) will open in Notepad for review.
  • The contents of the log file may be confusing. Unless you see a program name that you know should not be removed, don't worry about it.
    If you see an entry you want to keep, let me know about it.
  • Copy and paste the contents of that logfile in your next reply.
  • A copy of all logfiles are saved in the C:\AdwCleaner folder which was created when running the tool.

***


Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#3 rora

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Posted 01 November 2015 - 02:47 AM

Hi Jo,

 

I attach the requested files and await further instructions.

 

Thanks,

Rora

Attached Files



#4 Jo*

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Posted 01 November 2015 - 06:31 AM

Hello rora,

Run Malwarebytes Anti-Rootkit again: Right-click mbar.exe and select Run As Administrator
  • Scan your system for malware
  • If malware is found, click on the Cleanup button to remove any threats and reboot if prompted to do so.
  • Wait while the system shuts down and the cleanup process is performed.
  • then please go to the MBAR folder and then copy/paste the contents of the MBAR-log-***.txt file to your next reply.
  • If there is no malware found, please let me know as well.

    ***


    Double click on AdwCleaner.exe to run the tool again.
    Vista / Windows 7/8 users right-click and select
Run As Administrator.
  • Click on the Scan button.
  • AdwCleaner will begin to scan your computer like it did before.
  • When the scan has finished, the actual line should say "Pending. Please uncheck elements you do not want to remove". Look through the scan results and uncheck any entries that you do not wish to remove.
  • This time, click on the Clean button.
  • Press OK when asked to close all programs and follow the onscreen prompts.
  • Press OK again to allow AdwCleaner to restart the computer and complete the removal process.
  • After rebooting, a logfile report (AdwCleaner[S0].txt) will open automatically.
  • Copy and paste the contents of that logfile in your next reply.
  • A copy of that logfile will also be saved in the C:\AdwCleaner folder.

***


Please download Junkware Removal Tool from HERE and save it to your desktop.
Shutdown your antivirus to avoid any potential conflicts.
Double click JRT.exe to run the tool.
Vista / Windows 7/8 users right-click and select Run As Administrator.
  • JRT will begin to backup your registry and start scanning your system.
  • Please be patient as this can take a while to complete depending on your system's specifications.
  • On completion, the log JRT.txt is saved on your desktop and will automatically open.
Enable your antivirus!
Post the contents of JRT.txt into your next reply.


***


Run the Farbar Recovery Scan Tool again.
  • Double-click to run FSRT / FSRT64. 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.

***


How the computer is running now?


***


Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#5 rora

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Posted 01 November 2015 - 07:46 AM

Hi,

 

I attach the four log files produced by from the scans. It seems the virus is still working because I still get the ads when browsing on firefox.

 

 

Attached Files



#6 Jo*

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Posted 01 November 2015 - 08:15 AM

Hello rora,

do you gets ads with Internet Explorer too?
 

***


Open notepad. Please copy the contents of the code box below. To do this highlight the contents of the box and right click on it. Paste this into the open notepad.
Save it in the same location as / FSRT / FSRT64 (usually your desktop) as fixlist.txt

 
start
CreateRestorePoint:
CloseProcesses:
EmptyTemp:
HKU\S-1-5-21-3112662967-575192228-731022650-1001\...\MountPoints2: {b6fbf307-1743-11e5-bf5c-e549c4e0cde9} - "F:\AutoRun.exe" 
ShellIconOverlayIdentifiers: [ SkyDrive1] -> {F241C880-6982-4CE5-8CF7-7085BA96DA5A} => No File
ShellIconOverlayIdentifiers: [ SkyDrive2] -> {A0396A93-DC06-4AEF-BEE9-95FFCCAEF20E} => No File
ShellIconOverlayIdentifiers: [ SkyDrive3] -> {BBACC218-34EA-4666-9D7A-C78F2274A524} => No File
ShellIconOverlayIdentifiers-x32: [ SkyDrive1] -> {F241C880-6982-4CE5-8CF7-7085BA96DA5A} => No File
ShellIconOverlayIdentifiers-x32: [ SkyDrive2] -> {A0396A93-DC06-4AEF-BEE9-95FFCCAEF20E} => No File
ShellIconOverlayIdentifiers-x32: [ SkyDrive3] -> {BBACC218-34EA-4666-9D7A-C78F2274A524} => No File
SearchScopes: HKU\S-1-5-21-3112662967-575192228-731022650-1001 -> DefaultScope {99312FA8-23D1-45A6-91B2-185EC55BD752} URL = 
FF Plugin-x32: @TrendMicro.com/FFExtension -> C:\Program Files\Trend Micro\Titanium\UIFramework\Toolbar\firefoxextension\components\npToolbarChrome.dll [No File]
FF Extension: No Name - C:\Users\Abrar\AppData\Roaming\Mozilla\Firefox\Profiles\3i6zsxlk.default\extensions\YouTubeAutoReplay@arikv.com.xpi [not found]
FF Keyword.URL: hxxps://uk.search.yahoo.com/search?fr=mcafee&type=C111GB1045D20130727&p=
end


NOTICE: This script was written specifically for this user, for use on that particular machine.
Running this on another machine may cause damage to your operating system


Run FRST / FSRT64 again like we did before but this time press the Fix button just once and wait.
The tool will make a log (Fixlog.txt) please post it to your reply.


***


FRST / FSRT64: run it again.
  • Right-click FRST / FSRT64 then click "Run as administrator" (XP users: click run after receipt of Windows Security Warning - Open File).
  • When the tool opens, click Yes to disclaimer.
  • Press the Scan button.
  • When finished, it will produce a log called FRST.txt in the same directory the tool was run from.
  • Please copy and paste the log in your next reply.

***


Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#7 rora

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Posted 01 November 2015 - 11:36 AM

Hi Jo,

 

The ads don't seem to appear on Internet Explorer so I guess it's just Firefox.

 

Requested files are attached.

 

Thanks,

Rora

Attached Files


Edited by rora, 01 November 2015 - 11:38 AM.


#8 Jo*

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Posted 01 November 2015 - 11:45 AM


Go to the Start Menu, type Regedit, and hit Enter. If a User Account Control security question shows up, answer with Yes.

On the left side of the Registry window, you can browse all the different hives and keys. On the right side, you can see the corresponding values.

Now browse to this key:
[HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox]

To export this Windows Registry key, right-click it and select Export.
Give it a name.
The Registry Editor will create a file that can be viewed or edited with a text editor like Notepad.



Please copy / paste the export results.

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#9 rora

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Posted 01 November 2015 - 12:05 PM

This is what was in the exported file:

 

Windows Registry Editor Version 5.00
 
[HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox]
 
[HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox\extensions]


#10 Jo*

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Posted 01 November 2015 - 12:12 PM


Uninstall Firefox completely using this manual: http://kb.mozillazine.org/Uninstalling_Firefox
NOTE. Use MozBackup: http://mozbackup.jasnapaka.com/ to backup your bookmarks and passwords.
Do NOT backup anything else.
Install fresh copy.

Install ony plugins, that you really need!

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#11 rora

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Posted 01 November 2015 - 12:21 PM

I did so and installed a fresh version of Firefox. I still get ads opening in new tabs and new windows



#12 Jo*

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Posted 01 November 2015 - 12:24 PM

Hello rora,


Important Note: Your version of Java is out of date. Older versions have vulnerabilities that malicious sites can use to exploit and infect your system.

- Kaspersky Lab report: Evaluating the threat level of software vulnerabilities
- Microsoft: Unprecedented Wave of Java Exploitation
- Ghosts of Java Haunt Users

Please follow these steps to remove older version Java components and update:
  • Download the latest version of Java Runtime Environment (JRE) Version 8 and save it to your desktop.
  • Under "Java Platform, Standard Edition"...click the "Download JRE" button to the right.
  • Read the License Agreement, and then check the box that says: "Accept License Agreement".
  • From the list, select (click on) the download link for your operating system (Windows x86 Offline: jre-8u**-windows-i586.exe or Windows x64: jre-8u**-windows-x64.exe) and save the file to your desktop.
  • Close any programs you may have running - especially your web browser.
  • Go to StartBtn.gif > Control Panel, double-click on Add/Remove Programs or Programs and Features in Vista/Windows 7/8 and remove all older versions of Java.
  • Check (highlight) any item with Java Runtime Environment (JRE or J2SE) in the name.
  • Click the Remove or Change/Remove button and follow the onscreen instructions for the Java uninstaller.
  • Repeat as many times as necessary to remove each Java version.
  • Reboot your computer once all Java components are removed.
  • Then from your desktop double-click on jre-8u25-windows-i586.exe (or jre-8u25-windows-x64.exe for 64-bit) to install the newest version.
  • If using Windows 7/8 or Vista and the installer refuses to launch due to insufficient user permissions, then Run As Administrator.
  • When the Java Setup - Welcome window opens, click the Install > button.
  • If offered any unwanted software or toolbars during installation, just uncheck the box before continuing unless you want it. The McAfee Security Scan Plus may be installed unless you uncheck the McAfee installation box when updating Java.
-- Java is updated frequently. If you want to be automatically notified of future updates, just turn on the Java Automatic Update feature and you will not have to remember to update when Java releases a new version.

Note: The Java Quick Starter (JQS.exe) adds a service to improve the initial startup time of Java applets and applications but it's not necessary. To disable the JQS service if you don't want to use it:
  • Go to Start > Control Panel > Java > Advanced > Miscellaneous and uncheck the box for Java Quick Starter.
  • Click Ok and reboot your computer.

---


Malwarebytes' Anti-Malware
If this program is already installed: Skip the installation and run only the scan!
Download and install: Please download Malwarebytes Anti-Malware to your desktop.
  • Double-click mb3-setup-1878.1878-3.5.1.2522.exe and follow the prompts to install the program.
  • At the end, be sure a checkmark is placed next to the following:
    • Launch Malwarebytes Anti-Malware
    • A 14 day trial of the Premium features is pre-selected. You may deselect this if you wish, and it will not diminish the scanning and removal capabilities of the program.
  • Click Finish.
  • On the Dashboard, click the 'Update Now >>' link
  • After the update completes, click the 'Scan Now >>' button.
  • Or, on the Dashboard, click the Scan Now >> button.
  • If an update is available, click the Update Now button.
  • A Threat Scan will begin.
  • 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.
How to get logs: (Export log to save as txt)
  • After the restart once you are back at your desktop, open MBAM once more.
  • Click on the History tab > Application Logs.
  • Double click on the scan log which shows the Date and time of the scan just performed.
  • Click 'Export'.
  • Click 'Text file (*.txt)'
  • In the Save File dialog box which appears, click on Desktop.
  • In the File name: box type a name for your scan log.
  • A message box named 'File Saved' should appear stating "Your file has been successfully exported".
  • Click Ok
  • Attach that saved log to your next reply.
(Copy to clipboard for pasting into forum replies or tickets)
  • After the restart once you are back at your desktop, open MBAM once more.
  • Click on the History tab > Application Logs.
  • Double click on the scan log which shows the Date and time of the scan just performed.
  • Click 'Copy to Clipboard'
  • Paste the contents of the clipboard into your reply.

---


ESET Online Scanner

Connect any existing external hard drives and / or other removable media.

Note:
It is recommended to disable onboard antivirus program and antispyware programs while performing scans so there are no conflicts and it will speed up scan time.
Please don't go surfing while your resident protection is disabled!
Once the scan is finished remember to re-enable your antivirus along with your antispyware programs.



If this program is already installed: Skip the installation and run only the scan!
  • Hold down Control and click on the following link to open ESET OnlineScan in a new window.
    ESET OnlineScan
  • Click the esetOnline.png button.
  • For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
  • Click on esetSmartInstall.png to download the ESET Smart Installer. Save it to your desktop.
  • Double click on the esetSmartInstallDesktopIcon.png icon on your desktop.
  • Check esetAcceptTerms.png
  • Click the esetStart.png button.
  • Accept any security warnings from your browser.
  • Check esetScanArchives.png
  • Make sure that the option "Remove found threats" is Unchecked
  • Push the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
  • When the scan completes, push esetListThreats.png
  • Push esetExport.png, and save the file to your desktop using a unique name, such as MyEsetScan. Alternatively, look for report in C:\Program Files\ESET\ESET Online Scanner\log.txt. Include the contents of this report in your next reply.
  • Push the Back button.
  • Select Uninstall application on close check box and push esetFinish.png

---


How the computer is running now?


---


Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#13 rora

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Posted 01 November 2015 - 02:04 PM

Ok, I attach the requested logs. 

 

Note, I did not clean malicious files found from the ESET scan as this was not instructed.

 

When I use Firefox now it seems that the 15 day trial version of the Malwarebytes Anti Rootkit is blocking the advertisements that pop up in new tabs. So I'm afraid problem is not yet resolved.

 

 

Attached Files



#14 Jo*

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Posted 01 November 2015 - 02:12 PM

do you get a warning from Malwarebytes Anti Rootkit?

Can you copy and post such a message? Thanks.

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#15 rora

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Posted 01 November 2015 - 02:50 PM

  Hi Jo,  I attach the malware error message that pops up occasionally as I browse using Firefox.

Attached Files






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