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Malware.Sandbox.1 - Malware Type, File

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C:\USERS\EJ\DOWNLOADS\TOOLKIT...\PROGRAMFILES\TWTK30\CKS.EXE        My machine has been running all day 12 hours and it is running very slow.  Malwarebytes says 1 item detected.  How do I fix this?  I am a novice.  Please help.  I did not download anything.  This file is a personality workshop file that I have not used in a while.  This is a scan in my Local C drive.

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  • Root Admin
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Hello @Eagles


Please do the following so that we can get started and see what's going on.

The Farbar Recovery Scan Tool is a free Windows utility designed to create troubleshooting logs for your computer. These logs help our Support team to identify and resolve issues with your computer.

There are two versions of the Farbar Recovery Scan Tool available for download: 32-bit and 64-bit.
To find which operating system is installed on your computer, refer to Microsoft's article: 32-bit and 64-bit Windows: Frequently asked questions

Download and launch Farbar Recovery Scan Tool

  1. Download the Farbar Recovery Scan Tool
    Do not click on any Ads.
  2. Locate the file you downloaded on your computer.
    Downloaded files are often saved to the Downloads folder.
  3. Double-click the downloaded file to run the Farbar Recovery Scan Tool.

  4. Windows protected your PC notification may appear. This notification is from the Windows Defender SmartScreen Filter which prevents unfamiliar apps from running on your PC.
    Disable smart screen ONLY if it interferes with software we may have to use:  What is SmartScreen and how can it help protect me?

         a.  Click More info.

         b.  Click Run anyway.

  5. When the User Account Control window appears, click Yes.


  6. To accept the Disclaimer of warranty, click Yes.


  7. Ensure only the boxes listed below are checked


    Registry  Services  Drivers
    Processes  Internet  One month



  8. Disable any Antivirus software you have installed ONLY if it stops software we may use from working.
    Please remember to re-enable any Antivirus software when we are finished running scans

    Click Scan. The scan may take a few minutes to complete.


  9. When the scan completes, Farbar Recovery Scan Tool shows two messages:

  • Scan completed. FRST.txt is saved in the same directory FRST is located.


  • Addition.txt is saved in the same directory FRST is located.


  • Click OK to close each message window


Please attach both of those logs on your next reply, DO NOT copy/paste the contents of the logs directly







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Please go to Control Panel, Programs, Programs and Features and uninstall ALL versions of Java.

Java 8 Update 241
Java 8 Update 241
Java 8 Update 301
Java 8 Update 301
Java 8 Update 311
Java 8 Update 311
Java 8 Update 321
Java 8 Update 321


Then temporarily disable your Vipre antivirus and run the following fix.



Please download the attached fixlist.txt file and save it to the Desktop or location where you ran FRST from.
NOTE. It's important that both files, FRST or FRST64, and fixlist.txt are in the same location or the fix will not work.

Please make sure you disable any real-time antivirus or security software before running this script. Once completed, make sure you re-enable it.

NOTICE: This script was written specifically for this user, for use on this particular machine. Running this on another machine may cause damage to your operating system that cannot be undone.

Run FRST or FRST64 and press the Fix button just once and wait.
If the tool needs a restart please make sure you let the system restart normally and let the tool complete its run after restart.
The tool will make a log on the Desktop (Fixlog.txt) or wherever you ran FRST from. Please attach or post it to your next reply.

Note: If the tool warned you about an outdated version please download and run the updated version.

NOTE-1:  This fix will run a scan to check that all Microsoft operating system files are valid and not corrupt and attempt to correct any invalid files. It will also run a disk check on the restart to ensure disk integrity. Depending on the speed of your computer this fix may take 30 minutes or more.

NOTE-2: As part of this fix all temporary files will be removed. If you have any open web pages that have not been bookmarked please make sure you bookmark them now as all open applications will be automatically closed. Also, make sure you know the passwords for all websites as cookies will also be removed. The use of an external password manager is highly recommended instead of using your browser to store passwords.

NOTE-3: As part of this fix it will also reset the network to default settings including the firewall. If you have custom firewall rules you need to save please export or save them first before running this fix.

The following directories are emptied:

  • Windows Temp
  • Users Temp folders
  • Edge, IE, FF, Chrome, and Opera caches, HTML5 storages, Cookies and History
  • Recently opened files cache
  • Flash Player cache
  • Java cache
  • Steam HTML cache
  • Explorer thumbnail and icon cache
  • BITS transfer queue (qmgr*.dat files)
  • Recycle Bin

Important: items are permanently deleted. They are not moved to quarantine. If you have any questions or concerns please ask before running this fix.

The system will be rebooted after the fix has run.




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I cannot stop Vipre.  The computer says denied.  I tried several ways to stop the three Vipre files, even changing my mouse.  Still not able to stop it.  Should I delete Vipre and reinstall it later?

Also, I stopped the scan in Malwarebytes and deleted the quarantined malware.sandbox.1 threat .  My computer rebooted.  I ran another Malwarebytes scan and it was successful, not detecting any threats.

So, at this point I have a computer without Java.


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Once we're done you can reinstall Java but in reality, the vast majority of users do not need Java.  @Eagles

Please see if the following links help to temporarily disable Vipre so that you can run the fix.



VIPRE Advanced Security for Home

How to temporarily shutdown/disable VIPRE Advanced Security

Advanced Active Protection




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I have re-enabled Vipre and worked through the configurations as instructed.

I do not care about Java being on my machine.

Will you advise after you review the Fix file I sent to wrap up everything.

I appreciate everything you did to assist me and your patience, especially since I am not technical.

I will wait to hear back to wrap up.

God bless you




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The FIXLOG you posted was the one I needed and yes, this time it did run correctly.

Please run the following for me now.


Microsoft Safety Scanner

Please make sure you Exit out of any other program you might have open so that the sole task is to run the following scan.   
That goes especially for web browsers, make sure all are fully exited out of and messenger programs are exited and closed as well


Please set File Explorer to SHOW ALL folders, all files, including hidden ones.  Use OPTION ONE or TWO of this article



I suggest a new scan for viruses & other malware. This may take several hours, depending on the number of files on the system and the speed of the computer.

The Microsoft Safety Scanner is a free Microsoft stand-alone virus scanner that can be used to scan for & remove malware or potentially unwanted software from a system. 

The download links & the how-to-run-the tool are at this link at Microsoft 



Look on the Scan Options & select the FULL scan.

Then start the scan. Have lots of patience. It may take several hours.

  • Once you see it has started, take a long long break;  walk away.  Do not pay credence if you see some intermediate early flash messages on the screen display.  The only things that count are the End result at the end of the run.
  • The scan will take several hours.  Leave it alone. It will remove any other remaining threats as it goes along.  Take a very long break, do your normal personal errands .....just do not use the computer during this scan.

This is likely to run for many hours as previously mentioned  ( depending on the number of files on your machine & the speed of the hardware.)

The log is named MSERT.log  and the log will be at C:\Windows\debug\msert.log

Please attach that log with your next reply.

Thank you


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Running the Microsoft Safety Scanner now.

I thought I was finished and have been in my email this morning.  Now I am concerned about infection,exposure, and risk.

I was running my Malwarebytes and all of a sudden it said I was not protected and I tried adding the license key and it did not accept.

Will follow up with the report.

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Running the Microsoft Safety Scanner now.

I thought I was finished and have been in my email this morning.  Now I am concerned about infection,exposure, and risk.

I was running my Malwarebytes and all of a sudden it said I was not protected and I tried adding the license key and it did not accept.

Will follow up with the report.


Here is the msert.log.


I will wait to hear back from you.  This file identifies Vir Tool:Win32/DefenderTamperingRestore - Removed.

Does this mean I can reload my Malwarbytes.  I will wait to hear back from you.






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I apologize for the delayed response.

I did restart the computer.  All seems well.

However, Malwarebytes quarantined the malware.sandbox file in my laptop.  Also associating it with the TWK30 Toolkit file.  I deleted it.

Should I run the Microsoft Safety Scanner on my laptop.

I do not understand how this file got into my laptop. 


Thank you and have a nice Easter.




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Will do.  I will run the Microsoft Security Scanner on my laptop.  I know I will diable Vipre.

This is probably a silly question.  However, I will ask it knowing I am a bit over excited with all of the virus stuff I have been through.

I ran all of my scans in Malwarebytes and Vipre this morning and all were good.  No malware or virus stuff.

However, I stepped away from my desktop and there was a message that said Adobe Acrobat not found, type in the file again.  It was something like that.  I had to click ok to get out of the box.

Should I be concerned?




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I was up checking my desktop and I cannot get to the internet.  All my other computers can get there. 

How can I take my computer back to a previous recovery point?  Last time this happened it was a trojan.

I am so frustrated and concerned.


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