PUA:Win32/CoinMiner Removal

[heat26]

Greetings Everyone,
 

I have recently been attacked by CoinMiner, I have tried getting rid of it with windows security but it failed, I have tried using Malwarebytes to get rid of it but it keeps popping up after reboot, it is mainly using my cpu on 100% but not my gpu.

I will be waiting for responses here, feel free to ask me if you need something to help me.

Thank You.

[kevinf80]

Hello heat26 and welcome to Malwarebytes, Lets grab some logs and see whats going on, continue with the following: 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 Farbar Recovery Scan Tool and save it to your desktop. Alternative download option: http://www.techspot.com/downloads/6731-farbar-recovery-scan-tool.html Note: You need to run the version compatible with your system (32 bit or 64 bit). If you are not sure which version applies to your system download both of them and try to run them. Only one of them will run on your system, that will be the right version. If your security alerts to FRST either, accept the alert or turn your security off to allow FRST to run. It is not malicious or infected in any way... Be aware FRST must be run from an account with Administrator status... If English is not your primary language Right click on FRST/FRST64 and rename FRSTEnglish/FRST64English   Double-click to run it. When the tool opens click Yes to disclaimer.(Windows 8/10 users will be prompted about Windows SmartScreen protection - click More information and Run.) Make sure Addition.txt is checkmarked under "Optional scans"   Press Scan button to run the tool.... It will make a log (FRST.txt) in the same directory the tool is run. Please copy and paste it to your reply. The tool will also make a log named (Addition.txt) Please attach that log to your reply. Let me see those logs in your reply... Thank you, Kevin....

[heat26]

Hello Kevin,

\I haFRST_17-05-2021 11.18.09.txtAddition_17-05-2021 11.18.09.txtve ran Malwarebytes as well as the adwcleaner and also the FRST, Here is the txt files. For some reason adwcleaner and malwarebyte didn't detect the CoinMiner this time but i will include the earlier logs aswell

AdwCleaner[S04].txt AdwCleaner[S05].txt AdwCleaner[S06].txt AdwCleaner[S03].txt txtxt (2).txt txtxt.txt

[heat26]

Hello Kevin, 

I will be in school for a couple hours, bear with me if I don’t have any responses.

Thanks.

[kevinf80]

Thanks for the update heat26, just reply when you have time. It takes what it takes...

Cheers,

Kevin

[kevinf80]

Hiya heat26,

Continue with the following:

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. The system will be rebooted after the fix has run. Next, Download Sophos Free Virus Removal Tool and save it to your desktop. If your security alerts to this scan either accept the alert or turn off your security to allow Sophos to run and complete..... Please Do Not use your PC whilst the scan is in progress.... This scan is very thorough so may take several hours...   Double click the icon and select Run Click Next Select I accept the terms in this license agreement, then click Next twice Click Install Click Finish to launch the program Once the virus database has been updated click Start Scanning If any threats are found click Details, then View log file... (bottom left hand corner) Copy and paste the results in your reply Close the Notepad document, close the Threat Details screen, then click Start cleanup Click Exit to close the program If no threats were found please confirm that result.... The Virus Removal Tool scans the following areas of your computer: Memory, including system memory on 32-bit (x86) versions of Windows The Windows registry All local hard drives, fixed and removable Mapped network drives are not scanned. Note: If threats are found in the computer memory, the scan stops. This is because further scanning could enable the threat to spread. You will be asked to click Start Cleanup to remove the threats before continuing the scan. Saved logs are found here: C:\ProgramData\Sophos\Sophos Virus Removal Tool\Logs Let me see those logs in your reply... Thank you, Kevin.

fixlist.txt

[heat26]

Hello Kevin, 

I ran both the frst and the sophos,

It took ages for sophos to finish but here is the logs.

I will do a quick restart to see if its still there

 

Fixlog.txt SophosVirusRemovalTool.log

[heat26]

I have done a quick restart, it didnt pop up but my windows explorer cpu usage is still pretty high, it's sitting on around 17% on idle 

 

[kevinf80]

Hiya heat26,

Norton Security shows as disabled in your FRST logs, are you going to use Norton or has its licence ran out..?

Thank you,

Kevin..

[heat26]

Hello,

It has ran out from a couple of years ago sadly, why is it ?

[kevinf80]

Hiya heat26,

Can you remove Norton with the removal tool from Bleeping Computers:

https://www.bleepingcomputer.com/download/norton-removal-tool/

When complete run FRST again as follows:

Run FRST one more time, ensure all boxes are checkmarked under "Whitelist" but only Addition.txt under "Optional scan" Select scan, when done post the new logs. "FRST.txt" and "Addition.txt"   Thank you,   Kevin..

[heat26]

Hello, 

The Norton Removal tool took a long time, as well as the frst, the frst updated and popped up as a trojan so i ran to a little problem.

here are the logs

Addition2.txt FRST2.txt

[kevinf80]

Hello heat26,

Thanks for those logs, continue:

Download attached fixlist.txt file (end of reply) and save it to the Desktop, or the folder you saved FRST into. "Do not open that file when running FRST fix" NOTE. It's important that both FRST and fixlist.txt are in the same location or the fix will not work. Open FRST and press the Fix button just once and wait. The tool will make a log on the Desktop (Fixlog.txt) or the folder it was ran from. Please post it to your reply.   After your system reboots, is there any change, any improvement...?   Thank you,   Kevin..

fixlist.txt

[heat26]

Hello Kevin,

I will continue the fix tomorrow since I have to go to school this morning and its not mid night. I will give you an update in the morning.

Thanks

[kevinf80]

Yes, just post back whenever you`re ready...

[heat26]

Hello, 

I have ran the fixlist and here are the logs.

Fixlog2.txt

[heat26]

Hello, 

It seems like the cpu is running back in normal temps, I will make another discussion if there is something wrong with it, Thank you for the help, You are the best

[kevinf80]

Hello heat26,

Good to hear your system has settled down and is back to normal. We just need to clean up now:

Uninstall the following program (unless you prefer to keepit): Sophos AV http://www.askvg.com/how-to-completely-uninstall-remove-a-software-program-in-windows-without-using-3rd-party-software/ Also delete this folder if still present: C:\ProgramData\Sophos Next, Right click on FRST here: C:\Users\Helio\Downloads\Programs\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...

[kevinf80]

Glad we could help.

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