Jump to content

Trojan:Win32/Wacatac.B!ml


Go to solution Solved by kevinf80,

Recommended Posts

Hi! My windows defender continues to detect a Trojan: Win32 / Wacatac.B! Ml and I cannot remove it with malwarebyte. It is detected and says it is removed, but every time I turn on the computer, the powershell opens two windows by itself and starts to look like some commands. I've already seen if it is at startup but it doesn't even appear. The powershell never opened before the virus was detected ... I hope you can help me! Thank you, waiting for a reply!

Addition.txt FRST.txt

Link to post
Share on other sites

Hello AndreCoutinho and welcome to Malwarebytes,

Continue please:

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 FRSTEnglish, and fixlist.txt are in the same location or the fix will not work.

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Note: If the tool warned you about an outdated version please download and run the updated version.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

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 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.

user posted image

The system will be rebooted after the fix has run.

Next,

Open Malwarebytes, select > small cog wheel top right hand corner, that will open "settings" from there select "Security" tab.

Scroll down to "Scan Options" ensure Scan for Rootkits and Scan within Archives are both on....

Close out the settings window, this will take you back to "DashBoard" select the Blue "Scan Now" tab......

When the scan completes quarantine any found entries...

To get the log from Malwarebytes do the following:
 
  • Click on the Detection History tab > from main interface.
  • Then click on "History" that will open to a historical list
  • Double click on the Scan log which shows the Date and time of the scan just performed.
  • Click Export > From export you have two options:
    Copy to Clipboard - if seleted right click to your reply and select "Paste" log will be pasted to your reply
    Text file (*.txt) - if selected you will have to name the file and save to a place of choice, recommend "Desktop" then attach to reply

     
  • Please use "Copy to Clipboard, then Right click to your reply > select "Paste" that will copy the log to your reply…


Next,

Download AdwCleaner by Malwarebytes onto your Desktop.

Or from this Mirror
 
  • Right-click on AdwCleaner.exe and select http://i.imgur.com/Spcusrh.pngRun as Administrator (for Windows Vista, 7, 8, 8.1 and 10 users)
  • Accept the EULA (I accept), then click on Scan
  • Let the scan complete. Once it's done, make sure that every item listed in the different tabs is checked and click on the Quarantine button. This will kill all the active processes
  • Once the cleaning process is complete, AdwCleaner will ask to restart your computer, do it
  • After the restart, a log will open when logging in. Please copy/paste the content of that log in your next reply



Next,

Download "Microsoft's Safety Scanner" and save direct to the desktop

Ensure to get the correct version for your system....

https://docs.microsoft.com/en-us/windows/security/threat-protection/intelligence/safety-scanner-download


Right click on the Tool, select Run as Administrator the tool will expand to the options Window
In the "Scan Type" window, select Quick Scan
Perform a scan and Click Finish when the scan is done.


Retrieve the MSRT log as follows, and post it in your next reply:

1) Select the Windows key and R key together to open the "Run" function
2) Type or Copy/Paste the following command to the "Run Line" and Press Enter:

notepad c:\windows\debug\msert.log

The log will include log details for each time MSRT has run, we only need the most recent log by date and time....

Let me see those logs in your reply..

Thank you,

Kevin

fixlist.txt

Link to post
Share on other sites

Hiya AndreCoutinho,

The Malwarebytes log shows "Nenhuma Ação pelo Utilizador" or translated "No Action by User" is that correct, did you take no action..? Apart from that how does your PC respond now, are there any remaining issues or concerns...?

Also in my last reply I requested that AdwCleaner be used, did you run that tool? if so can I see the produced logs...

Thank you,

Kevin...

Edited by kevinf80
Link to post
Share on other sites

  • Solution

Hiya AndreCoutinho,

Good to hear your PC is back to normal apart from Boot speed. Lets try your system in "Clean Boot" mode, see if that makes any difference...

Set windows up for "Clean Boot" mode, full instructions here: https://support.microsoft.com/en-gb/kb/929135

Basically all none MS services are disabled, see how your system runs in that mode. Obviously 3rd party services that affect security or internet connection can be left active.

If clean boot makes your system faster and more responsive it is now a process of elimination to find which non MS service(s) was affecting your system...

Go through the process again, this time with all MS services hidden again enable the top half of non MS services, re-boot and see how your system responds, if still ok the top half can be left enabled.

Repeat again, enable so many of the bottom half then re-boot. Continue until you locate the problem service(s). A process of elimination, a bit long winded but worth the effort. Let me know the outcome...
 
Thank you,
 
Kevin...
Link to post
Share on other sites

Hiya AndreCoutinho,
 
Good to hear all is now ok for you, continue with the following to finish up...
 
Right click on FRST here: C:\Users\andre\Downloads\FRST.exe and rename uninstall.exe when complete right click on uninstall.exe and select "Run as Administrator"

If you do not see the .exe appended that is because file extensions are hidden, in that case just rename FRST to uninstall

That action will remove FRST and all created files and folders...

Next,

Remove all System Restore Points: https://www.tenforums.com/tutorials/33593-delete-system-restore-points-windows-10-a.html#option2

Create clean fresh Restore Point: http://www.thewindowsclub.com/create-system-restore-point

Run Windows Disk Clean Up Utility - https://neosmart.net/wiki/disk-cleanup/

Condsider the following:

Disable Remote Desktop: https://www.tenforums.com/tutorials/92433-enable-disable-remote-desktop-connections-windows-10-pc.html

Disable Windows Telemetry: https://helpdeskgeek.com/windows-10/how-to-disable-windows-10-telemetry/

Malwarebytes Browser Guard (Free) for Firefox: https://addons.mozilla.org/en-GB/firefox/addon/malwarebytes/

Malwarebytes Browser Guard (Free) for Chrome: https://chrome.google.com/webstore/detail/malwarebytes-browser-guar/ihcjicgdanjaechkgeegckofjjedodee Will also work for Opera and Edge..

PatchMyPC, keep all your software upto date - https://patchmypc.com/home-updater#download

From there you should be good to go...

Next,

Read the following links to fully understand PC Security and Best Practices, you may find them useful....

Answers to Common Security Questions and best Practices

Do I need a Registry Cleaner?

Take care and surf safe

Kevin... user posted image
Link to post
Share on other sites

Glad we could help.

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

 

 

Link to post
Share on other sites

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.
Back to top
×
×
  • Create New...

Important Information

This site uses cookies - We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.