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Malwarebytes detects Trojan.Agent svchost.exe


JavL

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  • Staff

Please do the following:

Download the appropriate version for your system of the Farbar Recovery Scan Tool and save it to a flash drive.

Plug the flashdrive into the infected PC.

Enter System Recovery Options.

To enter System Recovery Options from the Advanced Boot Options:

  • Restart the computer.
  • As soon as the BIOS is loaded begin tapping the F8 key until Advanced Boot Options appears.
  • Use the arrow keys to select the Repair your computer menu item.
  • Choose your language settings, and then click Next.
  • Select the operating system you want to repair, and then click Next.
  • Select your user account and click Next.

To enter System Recovery Options by using Windows installation disc:

  • Insert the installation disc.
  • Restart your computer.
  • If prompted, press any key to start Windows from the installation disc. If your computer is not configured to start from a CD or DVD, check your BIOS settings.
  • Click Repair your computer.
  • Choose your language settings, and then click Next.
  • Select the operating system you want to repair, and then click Next.
  • Select your user account an click Next.

On the System Recovery Options menu you will get the following options:


    • Startup Repair
      System Restore
      Windows Complete PC Restore
      Windows Memory Diagnostic Tool
      Command Prompt

[*]Select Command Prompt

[*]In the command window type in notepad and press Enter.

[*]The notepad opens. Under File menu select Open.

[*]Select "Computer" and find your flash drive letter and close the notepad.

[*]In the command window type e:\frst.exe (for x64 bit version type e:\frst64) and press Enter

Note: Replace letter e with the drive letter of your flash drive.

[*]The tool will start to run.

[*]When the tool opens click Yes to the disclaimer.

[*]Place a check next to List Drivers MD5 as well as the default check marks that are already there

[*]Press Scan button.

[*]type exit and reboot the computer normally

[*]FRST will make a log (FRST.txt) on the flash drive, please copy and paste the log in your reply.

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  • Staff

Please make sure you do all the steps in the order they are written.

  1. For 64bit systems, download Listparts64 and save it to your flashdrive
  2. Download fix.txt
    Save it to your flash drive.
  3. Please download FixList.txt
    Save it to your flash drive.
  4. Boot to System Recovery Options and select "Command Prompt".
    Run FRST64 and press the Fix button just once and wait.
    The tool will make a log on the flashdrive (Fixlog.txt) please post it later on to your reply. You may close the tool.
  5. While still in the recovery environment run ListParts by typing h:\listparts64 in the command prompt and pressing Enter.
    Click Fix. Close the pop up after the fix is done.
  6. Please restart, let it boot normally and then post the FixLog.txt.

NEXT

Refer to the ComboFix User's Guide

  1. Download ComboFix from the following location:
    Link
    * IMPORTANT !!! Place ComboFix.exe on your Desktop
  2. Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with ComboFix.
    You can get help on disabling your protection programs here
  3. Double click on ComboFix.exe & follow the prompts.
  4. Your desktop may go blank. This is normal. It will return when ComboFix is done. ComboFix may reboot your machine. This is normal.
  5. When finished, it shall produce a log for you. Post that log in your next reply
    Note:
    Do not mouseclick combofix's window whilst it's running. That may cause it to stall.
    ---------------------------------------------------------------------------------------------
  6. Ensure your AntiVirus and AntiSpyware applications are re-enabled.
    ---------------------------------------------------------------------------------------------

NOTE: If you encounter a message "illegal operation attempted on registry key that has been marked for deletion" and no programs will run - please just reboot and that will resolve that error.

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  • Staff

Please do the following:

  • Very Important! Temporarily disable your anti-virus, script blocking and any anti-malware real-time protection before following the steps below.
  • They can interfere with ComboFix or remove some of its embedded files which may cause "unpredictable results".

Copy/paste the text inside the Codebox below into notepad:

Here's how to do that:

Press the WinKey + R to open a run box, type Notepad > click OK.

This will open an empty notepad file:

Copy all the text inside of the code box - Press Ctrl+C (or right click on the highlighted section and choose 'copy')


File::
c:\windows\Tasks\AutoKMSDaily.job
c:\windows\AutoKMS.exe

ClearJavaCache::

Now paste the copied text into the open notepad - press CTRL+V (or right click and choose 'paste')

Save this file to your desktop, Save this as "CFScript"

Here's how to do that:

1.Click File;

2.Click Save As... Change the directory to your desktop;

3.Change the Save as type to "All Files";

4.Type in the file name: CFScript

5.Click Save ...

CFScriptB-4.gif

  • Referring to the screenshot above, drag CFScript.txt into ComboFix.exe.
  • ComboFix may request an update; please allow it.
  • ComboFix will now run a scan on your system. It may reboot your system when it finishes. This is normal.
  • When finished, it shall produce a log for you.
  • Copy and paste the contents of the log in your next reply.

CAUTION: Do not mouse-click ComboFix's window while it is running. That may cause it to stall.

NEXT

P2P - I see you have P2P software BitTorrent installed on your machine. We are not here to pass judgment on file-sharing as a concept. However, we will warn you that engaging in this activity and having this kind of software installed on your machine will always make you more susceptible to re-infections. It likely contributed to your current situation. This page will give you further information.

Please note: Even if you are using a "safe" P2P program, it is only the program that is safe. You will be sharing files from uncertified sources, and these are often infected. The bad guys use P2P filesharing as a major conduit to spread their wares.

Please see this topic for more information:

Perils of P2P File Sharing.

I would strongly recommend that you uninstall this now. You can do so via Control Panel >> Programs and Features.

NEXT

Please download Junkware Removal Tool to your desktop.

  • Shutdown your antivirus to avoid any conflicts.
  • Right-mouse click JRT.exe and select Run as administrator
  • The tool will open and start scanning your system.
  • Please be patient as this can take a while to complete.
  • On completion, a log (JRT.txt) is saved to your desktop and will automatically open.
  • Post the contents of JRT.txt into your next message

NEXT

Download AdwCleaner from here and save it to your desktop.

  • Run AdwCleaner and select Delete
  • Once done it will ask to reboot, allow the reboot
  • On reboot a log will be produced, please attach the content of the log to your next reply

NEXT

  • Please open your MalwareBytes AntiMalware Program
  • Click the Update Tab and search for updates
  • If an update is found, it will download and install the latest version.
  • Once the program has loaded, select "Perform Quick Scan", then click Scan.
  • The scan may take some time to finish, so please be patient.
  • When the scan is complete, click OK, then Show Results to view the results.
  • Make sure that everything is checked, and click Remove Selected. <-- very important
  • When disinfection is completed, a log will open in Notepad and you may be prompted to Restart. (See Extra Note)
  • The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.
  • Copy&Paste the entire report in your next reply.

Extra Note:If MBAM encounters a file that is difficult to remove, you will be presented with 1 of 2 prompts, click OK to either and let MBAM proceed with the disinfection process, if asked to restart the computer, please do so immediately.

NEXT

Go here to run an online scanner from ESET.

  • Turn off the real time scanner of any existing antivirus program while performing the online scan
  • Tick the box next to YES, I accept the Terms of Use.
  • Click Start
  • When asked, allow the activeX control to install
  • Click Start
  • Make sure that the option Remove found threats is unticked and the Scan Archives option is ticked.
  • Click on Advanced Settings, ensure the options Scan for potentially unwanted applications, Scan for potentially unsafe applications, and Enable Anti-Stealth Technology are ticked.
  • Click Scan
  • Wait for the scan to finish
  • When the scan completes, press the LIST OF THREATS FOUND button
  • Press EXPORT TO TEXT FILE , name the file ESETSCAN and save it to your desktop
  • Include the contents of this report in your next reply.
  • Press the BACK button.
  • Press Finish

NEXT

Please advise how the computer is running now and if there are any outstanding issues

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  • 2 weeks later...

Due to the lack of feedback this topic is closed to prevent others from posting here. If you need this topic reopened, please send a Private Message to any one of the moderating team members. Please include a link to this thread with your request. This applies only to the originator of this thread.

Other members who need assistance please start your own topic in a new thread. Thanks!

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