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Remove Mezaa virus (Removal Guide) - updated Aug 2019

removal by Ugnius Kiguolis - - | Type: Adware

Mezaa is an aggressive adware application that inserts links directly into legitimate sites

Mezza virus

Mezaa is a potentially unwanted application that usually gets installed together with freeware and shareware, so users are unaware of its infiltration. The app is one of the most aggressive adware,[1] as it modifies registry entries and creates subkeys on the Windows operating system to perform its activities. An adware is known to deliver pop-up ads and in-text links into legitimate sites (such as Amazon) on Google Chrome and other browsers and also installing additional suspicious applications on the targeted computer without user's consent. Due to such aggressive behavior, many AV vendors recognize the application as malicious under such names as Suspicious_GEN.F47V1109, Artemis!FB9ED40BCDC8, Adware.Mezaa, MSIL/Adware.Sendori.A, etc.

Name Mezaa
Classified as Adware
AV detection Suspicious_GEN.F47V1109, Artemis!FB9ED40BCDC8, Artemis, Mezaa, Adware.Mezaa, MSIL/Adware.Sendori.A
Related files MZA.exe, MezaaSvc.exe, Mezaa.Service.exe
Danger level Medium due to heavy Windows Registry modification
Symptoms Excessive amount of commercial ads. Some of them may be marked with a slogan “Ads by Mezaa”
Distribution Freeware bundling
Reimage is a reliable security tool that can eliminate Mezaa and related apps with one click. 

Mezza virus was active since late September 2014, and the application (that allegedly helps users with their shopping) was available on the rather poorly executed website. However, as of 2018, the official site has been removed and the only way users still obtain Mezza adware is by installing it as an optional component bundled with other software.[2]

Once installed, Mezza changes Windows startup system and starts running MZA.exe, MezaaSvc.exe, and Mezaa.Service.exe process within Task Manager. They are responsible for the execution of the adware, as well as injection of a related extension to the default web browser, be it Chrome, Firefox, Edge or Safari. The app then modifies Windows Registry, making Mezza virus removal a much harder task that it would normally be, comparing it with regular adware apps.

First of all, web browser's load time may be prolonged, so you may be forced to wait for the startup window to open for a minute or two. However, the most prominent sign of the Mezaa virus presence is a continuous attack of ads. Pop-ups, banners, interstitial ads, in-text links, full-page auto-play ads, etc. may flood your screen and prevent you from viewing the content that matters for you.

Usually, Mezaa ads contain various offers that are available on its partners' web stores. However, some of the pop-ups may be powered by suspicious third-parties that may try to foist useless services or trick people into downloading malware. Therefore, if you see ads claiming that your system is infected with a virus or that you have been selected to win valuable prizes, do not fall for clicking on them. Such and similar ads maybe a catch leading to phishing or scam[3] websites. 

In addition to intrusive ads, Mezaa virus aims at collecting users' Search Data. It includes

  • IP address
  • Email address
  • Search queries
  • Most visited websites
  • Bookmarks, and similar browsing-related information.

Even though it's not considered as personally identifiable (PI), its disclosure to third parties is not recommended. That's because the number of ads may grow even more. Besides, they may be improved according to your preferences, thus have more potential to be clicked on. 

Mezza ads
Mezza is an adware that spreads bundled with freeware and displays commercial ads to generate revenue.

Anyway, we encourage you to remove Mezaa from the system. This way, you will clean the system from malware, as well as delete intrusive content from your web browser. The easiest way to get rid of unwanted programs is to run a full scan with a professional anti-virus. Nevertheless, you can perform the removal manually with the help of a guide given at the end of this article. 

Finally, we recommend scanning your device with Reimage or similar PC repair tool after Mezaa removal. The mentioned software can remove Registry entries created by PUP and make sure that no “Ads by Mezaa” will show up on your browser again.

Adware can unravel its ads with the help of freeware

Not all, but many adware-type programs can be downloaded from official websites or sometimes from such reliable sources as Google Play Store. In some of the cases, like in this one, adware has an official website, which does not provide a download button. That's a clear sign that the app you are looking at is a PUP, which is being distributed along with freeware. 

Such unwanted tools are usually hidden under Quick or Basic installation options and marked by default. Consequently, if the PC's owner selects one of these options, he or she unconsciously permit to install the whole software package. 

To prevent the unexpected appearance of such apps, be very careful when installing freeware and shareware on your PC. The easiest way to disclose the bundle and reveal additional downloads is to choose Custom or Advanced installation option. Do not click the Next button for trying to speed up installation because you may easily miss the check mark that allows installation of PUPs. 

Mezza infection
Users reported that removing Mezza is quite difficult. You should make use of our instructions to get rid of the threat permanently.

Mezaa virus removal guide

If you noticed that your Internet browsing is frequently interrupted by ads that are labeled “brought to you by Mezaa,” “Mezaa ads,” and similar slogans, there's no doubt that adware program infiltrated your PC via freeware bundle. 

Your web browser will remain contaminated by intrusive advertisements as long as you won't remove Mezaa malware from the system. You can do that in two ways, i.e., by scanning the system with a professional anti-virus or performing system's check manually. 

Mezaa removal is not a difficult task. However, the utanvirus.se[4] team claims that the automatic elimination process could save your day. Such and similar malware can find helper objects, which, if left intact, can reinstall adware and rebuilt third-party advertising servers. 

You can remove virus damage automatically with a help of one of these programs: Reimage, SpyHunter 5Combo Cleaner, Malwarebytes. We recommend these applications because they detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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Compatible with Microsoft Windows Supported versions Compatible with OS X Supported versions
What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with SpyHunter 5.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove Mezaa virus, follow these steps:

Remove Mezaa from Windows systems

Adware belongs to the category of malware. Although such programs are not malicious, they should not be kept on the system due to highly suspicious content. If you are Windows OS, the following guide explains how to clean the system from adware programs like Mezza.

  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 Mezaa and related programs
    Here, look for Mezaa 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'

Uninstall Mezaa 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 Mezaa 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'

Erase Mezaa 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 Mezaa 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 Mezaa removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Delete Mezaa virus from Microsoft Edge

Keep in mind that ads won't stop showing up if you won't reset your web browser's settings to default. Microsoft Edge users can take advantage of this reset guide:

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, Mezaa should be removed from your Microsoft Edge browser.

Get rid of Mezaa 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 Mezaa 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 Mezaa removal. Click on 'Reset Firefox' button for a couple of times

Eliminate Mezaa from Google Chrome

To clean unwanted extensions from Chrome, follow these steps:

  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 Mezaa 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 Mezaa removal. Click on 'Reset' button to complete your removal

Remove Mezaa 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 Mezaa 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 Mezaa removal process. Select all options and click on 'Reset' button

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The mastermind

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References

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