Clicking on the Mo20 promotion can lead to the injection of different malware or unwanted programs. In this guide, you will see the guide of Mo20 popups removal in various ways, as well as examining your computer for other viruses existence.

What are Mo20 pop-ups?

Mo20 popups are an outcome of adware action. Adware is a kind of malware that presents you the pay-per-view of pay-per-click promotions, which creates a massive volume of earnings for adware representatives. These ads may have sometimes shocking content, or have a web link to harmful content/website, considering that adware maintainers have no purpose to examine the goodness of the material they are going to show – their single target is cash.

Mo20 push notification.

Pop-up marketing itself is a good, low-priced and extremely productive marketing tool¹. It permits the seller to attach the customers’ interest to their website, as well as the customers to receive dynamic updates on the goods they intend to purchase. When the person will get a pop-up alert that the TV set he likes to purchase is available at the online shop he/she visited earlier with a 15% price cut, one will undoubtedly use this possibility and purchase it. Taking into consideration the extremely low price for the popups and their targeting, such a promotion and marketing instrument is a favorite thing among the marketing departments of huge internet stores.

Nonetheless, such a rewarding system could not be missed by virus developers. The ability to demonstrate the popup ads by force to the targets of malware invasion is an ideal basis for malicious manipulations with popup promotions. And Mo20.biz promotions are among hundreds that are “employed” in this system.

Site	Mo20.biz
Hosting	AS14061 DigitalOcean, LLC Netherlands, Amsterdam
Infection Type	Adware, Push notifications, Unwanted Ads, Pop-up Ads
IP Address	143.198.248.64
Symptoms	Annoying pop-up ads in the right corner.
Similar behavior	Mo21, Mo22, Mo23
Fix Tool	GridinSoft Anti-MalwareTo remove possible virus infections, try to scan your PC

How have I got the Mo20 virus?

There are a huge amount of methods of becoming contaminated by the adware that cause the Mo20 popups storm. A lion’s part of this malware instance is after the freeware or cracked programs, that are distributed on the peering networks. Freeware may also be downloaded from the official site, and the adware is offered as a legal bundled program.

There is no need to blame yourself. A huge amount of individuals regularly utilize the dubious programs from untrusted providers: abandonware, various utilities that are free of cost, or even hacked programs. All of these kinds of software are dangerous, because it is quite easy to build in a Mo20 malware under the guise of part of the license hacking script, or as a part of the self-made algorithm inside of the Windows optimization tool.

Mo20 popup malware can also be concealed in the advertisement somewhere on the strange site. Such websites are usually filled with bright and blinking advertisements, and their owners often approve any kind of promos to be published on their page. For this reason, clicking such banners is a shot in the dark: only the advertisement provider realizes what will occur when you press this advertisement. Besides some “light” viruses, like adware or undesirable programs, you can also get something far more unsafe, like ransomware or coin miner; the large share of coin miners distribution is exactly after the malicious ads.

The statistic shows that people dislike popup advertising more than other types of promotions

How can I get rid of Mo20 pop-up advertisements?

The guide of Mo20 adware removal includes 2 parts. First, we need to exterminate the malware, and afterwards fix the results of its activity. The elimination task is very simple, because it can be executed even with making use of Microsoft Defender – anti-virus program that is present on all personal computers with Windows 8/10. However, due to its substantial resources consumption, as well as some problems that can be serious for some categories of users, Defender is oftentimes disabled by the users, so its usage is likely impossible. Moreover, different trojan viruses have the ability to disable the embedded antivirus. It is far better to use the separated program that will not have such exposures.

I would certainly recommend you to utilize Gridinsoft Anti-Malware² – a well-proven security tool that will certainly wipe out the viruses from your computer and also make an impenetrable shield with a Proactive protection function. But let’s deal with Mo20 adware first.

Download GridinSoft Anti-Malware

Removing Mo20 popup virus with GridinSoft Anti-Malware

• Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
• Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
• When the scan is over, you may choose the action for each detected virus. For all files of Mo20 malware the default option is “Delete”. Press “Apply” to finish the malware removal.

Now, when the computer is clean of viruses, we can proceed to the browser reset. You can do this step manually, as well as with the use of GridinSoft Anti-Malware.

Reset browser settings to default

Manual method of browser reset

1. Open “Settings and more” tab in upper right corner, then find here “Settings” button. In the appeared menu, choose “Reset settings” option :
2. After picking the Reset Settings option, you will see the following menu, stating about the settings which will be reverted to original :

1. Open Menu tab (three strips in upper right corner) and click the “Help” button. In the appeared menu choose “troubleshooting information” :
2. In the next screen, find the “Refresh Firefox” option :

After choosing this option, you will see the next message :

1. Open Settings tab, find the “Advanced” button. In the extended tab choose the “Reset and clean up” button :
2. In the appeared list, click on the “Restore settings to their original defaults” :
3. Finally, you will see the window, where you can see all the settings which will be reset to default :

1. Open Settings menu by pressing the gear icon in the toolbar (left side of the browser window), then click “Advanced” option, and choose “Browser” button in the drop-down list. Scroll down, to the bottom of the settings menu. Find there “Restore settings to their original defaults” option :


2. After clicking the “Restore settings…” button, you will see the window, where all settings, which will be reset, are shown :

When the web browsers are reset, you need to make sure that your browser will be connected the proper DNS while connecting to the website you want. Create a text file named “hosts” on your desktop, after that open it and fill it with the following lines³:

# Copyright (c) 1993-2006 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a ‘#’ symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
# localhost name resolution is handle within DNS itself.
# 127.0.0.1 localhost
# ::1 localhost

Find the hosts.txt file in C:/Windows/System32/drivers/etc directory. Rename this file to “hosts.old.txt” (to distinguish it from the new one), and then move the file you created on the desktop to this folder. Remove the hosts.old from this folder. Now you have your hosts file as good as new.

However, there is one issue that makes things much more difficult to restore, particularly without the anti-malware software. The majority of adware variants that are utilized to show you the Mo20 pop-up ads are altering the deep browser setups, disabling an access to the settings tab. So, if you attempt to change your browser settings after your PC was infected by pop-up-related malware, your browser will collapse soon. In some cases, you will see no crash, but significant lag spike after pressing the “settings” key. Browser will stop reacting for ~ 30 seconds, and then it will be back to the typical, up until you attempt to open settings one more time.

Reset your browser settings with GridinSoft Anti-Malware

To reset your browser with GridinSoft Anti-Malware, open the Tools tab, and click the “Reset browser settings” button.

You can see the list of the options for each browser. By default, they are set up in the manner which fits the majority of users. Press the “Reset” button (lower right corner). In a minute your browser will be as good as new.

The browser reset is recommended to perform through the antivirus tool by GridinSoft, because last is also able to reset the HOSTS file without any additional commands.

References

1. More about pop-up advertisements on Wikipedia.
2. GridinSoft Anti-Malware review and also the reasons why I advise it for malware removal.
3. Official Microsoft guide for hosts file reset.