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Ensuring that Trojan: Win32/Wacatac.H!ml is killed


NAOS

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So i was recently infected by Trojan: Win32/Wacatac.H!ml however I contacted Microsoft support about the issue and they had me do this - Open File Explorer, then on the View menu at the top, temporarily turn on 'Hidden Items'.

Navigate to this folder: C:\ProgramData\Microsoft\Windows Defender\Scans\History\Service

Delete the contents of that Service folder.

Close File Explorer.

Open Defender and select the option to perform an offline scan, your PC will restart to perform that scan.

And after doing this in safe mode and doing offline scan I didn't get any more warnings or see it in the history logs or whatever it's called. After doing this and checking to see if the warnings were still in the logs I ran another scan (this time just a regular microsoft defender full scan) and it showed nothing. I feel like the trojan is gone but after reading up on some stuff online I am not entirely sure that's it's been destroyed. so if a professional could help me that would be great

 

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Hello @NAOS  and  :welcome:

 

My name is MKDB and I will assist you.

 

 

Let's keep these principles as we proceed. Make sure to read the entire post below first.

  • Please follow the steps in the given order and post back the log files.
  • Please attach all log files into your post.
  • Before we start, please make sure that you have an external backup, not connected to this system, of all private data.
  • Only run the tools I guide you to. Please don't run any other scans, download, install or uninstall any programs while I'm working with you.
  • As English is not my native language, please do not use slang or idioms. It may be hard for me to understand.
  • If you do not respond within 4 days, your topic will be closed.
  • Cracked or hacked or pirated programs are not only illegal, but also will make a computer a malware victim. Having such programs installed, is the easiest way to get infected. It is the leading cause of ransomware encryptions. It is at times also a big source of current trojan infections. If you are running any kin of illegal software on your system, please uninstall them now, before we start the cleaning procedure.

 

 

CasPol.exe is a legit file, do not delete it! Maybe it is misused by malware.

 

 

Step 1

  • If you already have Malwarebytes Anti-Malware installed, then open Malwarebytes and click on the Scan button. It will automatically check for updates and run a Threat Scan.
  • If you don't have Malwarebytes installed or if you don't run the newest version yet, please download it from here and install it.
  • Once the MBAM dashboard opens, click on Settings (gear icon).
  • Click on Security tab and make sure that all four Scan options are enabled.
  • Close Settings and click on the Scan button on the dashboard.
  • Once the scan is completed make sure you have it quarantine any detections it finds.
  • If no detections were found click on the Save results drop-down, then the Export to TXT button and save the file as a Text file to your desktop.
  • If there were detections then once the quarantine has completed click on the View report button, then click the Export drop-down, then the Export to TXT  button, and save the file as a Text file to your desktop or other location you can find and attach that log on your next reply.
  • If the computer restarted to quarantine you can access the logs from the Detection History, then the History tab. Highlight the most recent scan and double-click to open it. Then click the Export drop-down, then the Export to TXT  button, and save the file as a Text file to your desktop or other location you can find and attach that log on your next reply.
  • If Malwarebytes won't run, then please skip to the next step and let me know in your next reply that the scanner would not run.

 

 

Step 2

Please download AdwCleaner and save it to your desktop.

  • Double-click to run it.
  • Accept the End User License Agreement.
  • Click Scan Now.
  • When finished, if items are found please click Next / Quarantine.
  • Maybe your PC will be rebooted, AdwCleaner will be opened automatically.
  • Click View Log File.
  • AdwCleaner will open one log (AdwCleaner[Cxx].txt).
  • Please attach the log to your next reply.

 

 

Step 3

Please download the suitable version of Farbar Recovery Scan Tool (FRST) and save it to your desktop: 32bit | 64bit

Edited by MKDB
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@NAOS

We are going to remove some orphans and check windows system files.

The fix may take some time, please be very patient and do not interfere.

Thank you.

 

 

Step 1

  • Please download the attached fixlist.txt file and save it to the location where you ran FRST from ( C:\Users\burrn\Downloads\FRST64.exe ).

Note: It's important that both files, FRST and fixlist.txt are in the same location or the fix will not work.

  • Close all open programs and save your work.
  • Run FRST again.
  • Press the FIX button only once and wait.
  • Please be patient and do not interfere, even if FRST does not respond for some time. That's nothing to worry about.
  • Please note: This Fix will remove all temporary files, empty recycle bin and will remove cookies and may result in some websites indicating they do not recognize your computer. It may be necessary to receive and apply a verification code.
  • Please note: This step resets your Firewall settings and you may be asked later to grant permission for legitimate programs to pass through the Firewall. If you recognize the program, agree to the request.
  • If the tool needs a restart, please make sure you let the system restart normally and let the tool complete its run after restart.
  • FRST will create one log now (Fixlog.txt) in the same directory the tool is run.
  • Please attach this logfile to your next reply.

 

 

 

fixlist.txt

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Well done @NAOS

From the logfile: Windows Resource Protection found corrupt files and successfully repaired them.

 

Let's do some final checks.

 

 

Step 1

Let me have you run a different scanner to double-check. I don't expect it to find anything, but no harm in checking.

I would suggest a free scan with the ESET Online Scanner

Go to https://download.eset.com/com/eset/tools/online_scanner/latest/esetonlinescanner.exe

  • It will start a download of "esetonlinescanner.exe".
  • Save the file to your system, such as the Downloads folder, or else to the Desktop.
  • Go to the saved file, and double click it to get it started. 
  • When presented with the initial ESET options, click on "Computer Scan".
  • Next, when prompted by Windows, allow it to start by clicking Yes.
  • When prompted for scan type, Click on Full scan
  • Look at & tick  ( select )   the radio selection "Enable ESET to detect and quarantine potentially unwanted applications"   and click on the Start scan button.
  • Have patience.  The entire process may take an hour or more. There is an initial update download.
  • There is a progress window display.
  • You should ignore all prompts to get the ESET antivirus software program.  (e.g. their standard program). You do not need to buy or get or install anything else.
  • When the scan is completed, if something was found, it will show a screen with the number of detected items.  If so, click the button marked “View detected results”.
  • Click The blue “Save scan log” to save the log.
  • If something was removed and you know it is a false finding, you may click on the blue ”Restore cleaned files”  (in blue, at the bottom).
  • Press Continue when all done.  You should click to off the offer for “periodic scanning”.

Note: If you do need to do a File Restore from ESET please follow the directions below

[KB2915] Restore files quarantined by the ESET Online Scanner version 3

https://support.eset.com/en/kb2915-restore-files-quarantined-by-the-eset-online-scanner

 

 

 

Step 2

I would like you to run a tool named SecurityCheck to inquire about the current security update status of some applications.

  • Download SecurityCheck by glax24: https://tools.safezone.cc/glax24/SecurityCheck/SecurityCheck.exe
  • If Microsoft SmartScreen blocks the download, click through to save the file
  • This tool is safe.   Smartscreen is overly sensitive.
  • If SmartScreen blocks the file from running click on More info and Run anyway
  • Right-click  with your mouse on the Securitycheck.exe  and select "Run as administrator"  and reply YES to allow to run & go forward
  • Wait for the scan to finish. It will open a text file named SecurityCheck.txt Close the file.  Attach it with your next reply.
  • You can find this file in a folder called SecurityCheck, C:\SecurityCheck\SecurityCheck.txt
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Ok I will do this, but I am a little be cautious because I have never heard of these apps before, before I proceed can you explain a little bit more about these and why they are safe and trustworthy and is it really necessary? (Sorry im just a very cautious person, and scared by malware and stuff.) 

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Due to the lack of feedback, I do not follow this topic any longer.

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 topic 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.

Please review the following for Tips to help protect from infection.

Thank you.

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