Jump to content

Coinhive Pop-up on random sites

Recommended Posts

I'm running latest Malwarebytes Premium and maybe for a couple of weeks it has been blocking CoinHive on random websites... using Firefox (latest 57.0.2). There's no pattern I can detect because it's so random... I've gotten the pop-up on Home Depot, PayPay, and many others even got a pop-up when bringing up the Firefox Add-ons. Normally I will get the pop-up once on these web pages but not for a second visit which is just so weird.

I've included my mb-check-results for you to look over. Thanks!





Edited by mike2874
Link to post
Share on other sites

  • Root Admin

Hello @mike2874 and :welcome:


Please run the following steps and post back the logs as an attachment when ready.


  • If you're already running Malwarebytes 3 then open Malwarebytes and check for updates. Then click on the Scan tab and select Threat Scan and click on Start Scan button.
  • If you don't have Malwarebytes 3 installed yet please download it from here and install it.
  • Once installed then open Malwarebytes and check for updates. Then click on the Scan tab and select Threat Scan and click on Start Scan button.
  • Once the scan is completed click on the Export Summary 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 on your next reply.


Please download AdwCleaner by Malwarebytes and save the file to your Desktop.

  • Right-click on the program and select RunAsAdmin.jpg Run as Administrator to start the tool.
  • Accept the Terms of use.
  • Wait until the database is updated.
  • Click Scan.
  • When finished, please click Clean.
  • Your PC should reboot now if any items were found.
  • After reboot, a log file will be opened. Copy its content into your next reply.


RESTART THE COMPUTER before running Step 3

Please download the Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatible with your system. You can check here if you're not sure if your computer is 32-bit or 64-bit

  • Double-click to run it. When the tool opens, click Yes to disclaimer.
  • Press the Scan button.
  • It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
  • The first time the tool is run, it also makes another log (Addition.txt). If you've, run the tool before you need to place a check mark here.
  • Please attach the Additions.txt log to your reply as well.





Edited by AdvancedSetup
Link to post
Share on other sites

Sorry for the delay hope this is how you wanted things posted.

# AdwCleaner - Logfile created on Sun Dec 10 15:38:53 2017
# Updated on 2017/29/11 by Malwarebytes
# Running on Windows 10 Home (X64)
# Mode: clean
# Support: https://www.malwarebytes.com/support

***** [ Services ] *****

No malicious services deleted.

***** [ Folders ] *****

Deleted: C:\Windows\Searcher
Deleted: C:\Program Files (x86)\Searcher
Deleted: C:\Users\mccoa\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Searcher
Deleted: C:\Users\mccoa\AppData\Roaming\Tencent

***** [ Files ] *****

No malicious files deleted.

***** [ DLL ] *****

No malicious DLLs cleaned.

***** [ WMI ] *****

No malicious WMI cleaned.

***** [ Shortcuts ] *****

No malicious shortcuts cleaned.

***** [ Tasks ] *****

No malicious tasks deleted.

***** [ Registry ] *****

Deleted: [Key] - HKCU\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\EdpDomStorage\d2j8jkom7xmn9n.cloudfront.net
Deleted: [Key] - HKCU\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children\001\Internet Explorer\DOMStorage\d2j8jkom7xmn9n.cloudfront.net
Deleted: [Key] - HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Searcher

***** [ Firefox (and derivatives) ] *****

No malicious Firefox entries deleted.

***** [ Chromium (and derivatives) ] *****

No malicious Chromium entries deleted.


::Tracing keys deleted
::Winsock settings cleared
::Additional Actions: 0



C:/AdwCleaner/AdwCleaner[S0].txt - [1718 B] - [2017/12/10 15:35:59]

########## EOF - C:\AdwCleaner\AdwCleaner[C0].txt ##########

Threat Scan.txt



Link to post
Share on other sites

  • Root Admin

Great, let me have you run the following.

NOTE: This fix will also run a full disk check. This disk check make take a few hours to run depending on the speed of your computer but please let it run.

Please download the attached fixlist.txt file and save it to the Desktop.
NOTE. It's important that both files, FRST or FRST64 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.

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). 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.





Link to post
Share on other sites

  • Root Admin

Press the Windows + R keys to open the Run dialog, type powershell.exe and press the Enter key.

In PowerShell copy and paste the command below, and press the Enter key.


get-winevent -FilterHashTable @{logname="Application"; id="1001"}| ?{$_.providername –match "wininit"} | fl timecreated, message | out-file Desktop\CHKDSKResults.txt

Here is a code box of that command if you need to use for copying it.

get-winevent -FilterHashTable @{logname="Application"; id="1001"}| ?{$_.providername –match "wininit"} | fl timecreated, message | out-file Desktop\CHKDSKResults.txt

The file CHKDSKResults.txt file will be created on your desktop, that is the log file of your disk check scan results from Event Viewer.

Please upload that file on your next reply




Edited by AdvancedSetup
Link to post
Share on other sites

  • Root Admin

The issue is that advertisements use javascript which is valid and is itself not malware. It's designed to give the user a good experience on a web page but there are those that abuse it and make changes to the browser to have it go to their specific site. We don't block that type of change as it is normally valid. Use of an Ad Blocker (designed to block Ads) it almost a necessity nowadays. AdBlocker Plus or similar tools are highly recommended by me for all users.


Link to post
Share on other sites

  • Root Admin

Sometimes it's XSS and/or other JavaScript that comes through. For Firefox there is NoScript.net that works very well but there is a bit of a learning curve to use it. I'm not sure if it supports Chrome or not or if there is something like that for Chrome as I don't use Chrome.

Just a reminder, don't forget about good solid backups of your data.

If there is anything else please let me know, otherwise we'll go ahead and close your topic here soon.

Thanks again



Link to post
Share on other sites

  • Root Admin

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.



Link to post
Share on other sites

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.