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Remove Evernote virus (Removal Guide) - updated Jun 2019

removal by Olivia Morelli - -   Also known as Evernote Web virus | Type: System tools

Evernote virus is a set of cyber infections and scams that try impersonate a legitimate application

Evernote virus
Evernote virus is a fake version of a legitimate Evernote application - it allows bad actors to insert malicious ads into websites that the infected users visit

Evernote virus, which is also known as Evernote Web virus, is a term used for cyber infections that can get into user devices by pretending to be an official Evernote app, published by a trustworthy company[1]. The service is designed initially to take notes and organize to-do tasks and has over 1.5 million downloads on Google Play.[2]

It turns out, scammers are using the name of this legitimate company to trick computer users into thinking that they are using a browser extension, while in reality, the malicious version is being installed. Evernote Web virus uses the same name as the real Chrome extension, so it can be very hard to identify whether you are infected or not.

Besides the fake Evernote version, security researchers also recently uncovered a security vulnerability inside the Evernote Web Clipper Extension for Chrome under the code name CVE-2019-12592.[3] It allows hackers to hijack the Chrome Web browser and harvest sensitive user data like cookies, login credentials, and other private information.

Name Evernote virus
Type Malware, software vulnerability
Associated CVE CVE-2019-12592
Malicious version dropped by Multiplug potentially unwanted program
Risk factors Sensitive data exposure to bad actors, money loss, other malware infections
Elimination To remove the malicious version of Evernote, scan your device with reputable security software
Recovery After you delete the malicious application, scan your device with Reimage Reimage Cleaner to fix virus damage

Evernote virus dropped by a potentially unwanted program Multiplug

Reportedly,[4] Evernote virus, which is a fake version of the official app, s distributed with the help of Multiplug (a potentially unwanted program), which is digitally signed by Sergei Ivanovich Drozdov, who claims to be an open source developer.

This PUP manages to insert the deceptive browser extension to Comodo Dragon[5], Torch, and Google Chrome browsers. Upon the infiltration, Multiplug PUP drops the following files into the host browser extension folder:

  • content.js
  • lsdb.js
  • manifest.json
  • WJA4Pkzixj3.js

Thanks to the inserted JavaScript code, as well as the tricks that Multiplug PUP uses, the fake extension receives a name “Evernote Web,” which can trick users into believing the app is legitimate. While the Evernote virus does not show any symptoms of the infection, there is a small hint that shows discrepancies – when visiting Chrome://extensions page, click on the “visit website” button next to the Evernote Web extension – it will bring you nowhere.

Evernote virus extension loads a content script into every Internet website that the victim visits, and as a result, the user receives a virtual layer of various web advertisements in a variety of different forms – banners, pop-up and pop-under ads, in-text links and more.

Evernote virus termination
Evernote virus is a term used to describe a malicious version of a popular app that can be obtained on Google web store

These ads can lead you to highly insecure Internet sites, especially those that promote spyware and malware programs[6]. You should not blame Evernote firm for these ads – it has nothing to do with with the legitimate Evernote app. Instead, you should remove Evernote Web fake extension using a tutorial that we have prepared, or run a system scan with an anti-spyware program for automatic Evernote removal.

For malware termination, we suggest using reputable security applications which should delete the Evernote virus without troubles. Additionally, you should also scan your device with Reimage Reimage Cleaner to restore it to the previous state and remove virus damage.

In most of the cases, such ads appear right after installing some free application without checking what is hiding inside it. As we have already mentioned, Multiplug can easily be involved in the distribution of Evernote web adware.

When inside and active, the fake Evernote virus may not only cause unwanted ads during your browsing. It can also be set to track your browsing habits and redirect you to affiliate websites. While there is no guarantee that each of such sites is safe, you should be very careful with 'ads by Evernote web,' 'brought to you by Evernote web,' 'Evernote web ads' and similar pop-up notifications.

The vulnerability allows hackers remote code execution

There is no doubt that third-party extensions are useful features used by many users worldwide, as they make the browsing smoother and provide useful functionality. However, letting the unknown code to enter your browser and potentially make changes to the way it operates is much more dangerous than most people think.

It is true that various extensions often require additional permissions to better take care of the tasks they are designed to do. However, when a critical software vulnerability like CVE-2019-12592 gets involved, things get much worse, as even the most private data like banking details might be stolen by cybercriminals.

To exploit the vulnerability, hackers would have to perform the following steps:

  • Redirect the user to a malicious website with the help of the installed adware, or a malicious link on social media.
  • The malicious site secretly loads legitimate iframe tags of the particular websites.
  • The vulnerability then allows the malicious payload to be inserted into all iframes contexts.
  • Malicious payload allows hackers to steal cookies, credentials, and perform user actions.

The researchers who discovered the vulnerability at Guardio[7] reported the issue to Evernote, and Evernote Web Clipper extension was immediately patched. To avoid this version of Evernote virus, please make sure you run 7.11.1 (or later) version of the application.

Evernote virus CVE-2019-12592 flaw

Watch out for the malicious versions of the application

The malicious app's hijack[8] happens without user's knowledge because this fake browser extension arrives alongside Multiplug software. You can accidentally agree to install these programs when installing a free application that you downloaded from the Internet.

In general, potentially unwanted programs are distributed with a help of software developers that seek to increase their income by adding various extensions, plugins and add-ons to their popular free products in exchange for money. That's why we must recommend you to be very careful when downloading such free programs as download managers, PDF creators and video streaming software to your computer because each of them can be filled with optional components.

If you want to check what programs are you installing on your computer, make sure you read End User License Agreement. In addition, if you see no suspicious information, you should select Custom or Advanced installation settings of the freeware[9].

After that, you should follow each of installation steps carefully and opt out of all unknown third-party programs. If you think that this program might be hiding in your PC system, you should follow a guide below and fix it. Leaving this PUP may increase the risk of infecting your PC with malware.

Remove the bogus Evernote Web app and patch Evernote Web Clipper Extension

Evernote virus is one of those programs that may trick you into visiting unsafe websites or make you install questionable programs on your computer. To avoid that, you must remove Evernote Web virus and make sure the app you are using is legitimate. You can find the helpful removal guide that we have written below. However, an even easier method to complete Evernote Web removal is to scan the system with anti-malware application and let it clean the system for you.

Besides making sure that the malicious version of the application is terminated, you also need to take care of Evernote Web Clipper Extension that is designed for Google Chrome. The browser checks for all the installed browser plugins updates automatically, although just to be sure, you should check if the Evernote extension is version 7.11.1 or later.

You may remove virus damage with a help of Reimage Reimage Cleaner . SpyHunter 5Combo Cleaner and Malwarebytes are recommended to detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage Cleaner, try running Combo Cleaner.

To remove Evernote virus, follow these steps:

Eliminate Evernote from Windows systems

In Windows, you need to remove MultiPlug application and then clean affected web browsers from the fake Evernote extension.

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). Click 'Start -> Control Panel -> Programs and Features' (if you are 'Windows XP' user, click on 'Add/Remove Programs').
  2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program. If you are 'Windows 10 / Windows 8' user, then right-click in the lower left corner of the screen. Once 'Quick Access Menu' shows up, select 'Control Panel' and 'Uninstall a Program'.
  3. Uninstall Evernote and related programs
    Here, look for Evernote or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'

Delete Evernote from Mac OS X system

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for Evernote or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'

Remove Evernote from Internet Explorer (IE)

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for Evernote and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete Evernote removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Get rid of Evernote virus from Microsoft Edge

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, Evernote should be removed from your Microsoft Edge browser.

Erase Evernote from Mozilla Firefox (FF)

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select Evernote and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete Evernote removal. Click on 'Reset Firefox' button for a couple of times

Uninstall Evernote from Google Chrome

Go to Extensions tab, find Evernote Web and click on the trash bin icon next to it to delete the extension. We highly recommend you to delete all other unknown browser extensions as well.

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select Evernote and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete Evernote removal. Click on 'Reset' button to complete your removal

Eliminate Evernote from Safari

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for Evernote or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete Evernote removal process. Select all options and click on 'Reset' button

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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References

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