Remove Mous9.biz Pop-up Ads — How to Fix Gude

Mous9.biz pop-up alerts may show up out of the blue, covering the content of the page you went to or opening your browser when you do not want it to be opened.

Clicking the Mous9.biz promotion can trigger the injection of other malware or unwanted programs. In this guide, you will see the manual of Mous9.biz popups clearing in various manners, as well as inspecting your personal computer for other viruses presence.

It is better to prevent, than repair and repent!

Removing Mous9.biz manually may take hours and may damage your PC in the process. I recommend you to download GridinSoft Anti-Malware for threats removal. Allows to complete scan and cure your PC during the trial period.

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What are Mous9.biz pop-ups?

Mous9.biz popups are an outcome of adware activity. Adware is a kind of malware that demonstrates to you the pay-per-view of pay-per-click ads, which generates a large amount of income for adware representatives. These ads may include explicit composition, or have a link to harmful content/website, because adware maintainers have no reason to inspect the goodness of the content they are going to reveal – their single target is cash.

Mous9.biz push notification.

Pop-up advertising itself is an excellent, low-priced and extremely efficient advertising instrument¹. It makes it possible for the seller to attach the customers’ attention to their site, and the customers to receive the dynamic updates on the goods they want to buy. When the consumer will get a pop-up notification that the TV set he likes to buy is provided at the online shop he/she saw previously with a 15% price cut, one will surely use this chance and buy it. Taking into consideration the very small cost for the popups and their targeting, such an advertising and marketing method is a favorite thing amidst the marketing teams of large internet sellers.

Nonetheless, such a rewarding strategy could not be missed by virus creators. Potential to demonstrate the popup ads forcibly to the people of malware invasion is an excellent basis for malicious manipulations with the popup ads. And Mous9.biz ads is just one of hundreds that are “employed” in this scheme.

Here is a short info for the Mous9.biz site

How have I got the Mous9.biz virus?

There are a lot of ways of becoming contaminated by the adware that result in the Mous9.biz popups tornado. A lion’s part of this virus incidents is after the free software or cracked programs, that are spread on the peering networks. Free software may also be downloaded from the main web page, and the adware is supplied as a legitimate bundled program.

There is no need to blame yourself. A plenty of people frequently use the uncertain programs from untrusted providers: abandonware, various apps that are free, or even hacked programs. All of these types of programs are risky, due to the fact that it is very easy to integrate a Mous9.biz malware under the cover of part of the license hacking script, or as a component of the self-made algoritm inside of the Windows optimization tool.

Mous9.biz popup malware can likewise be concealed in the ad somewhere on the strange site. Such sites are in most cases full of bright and blinking ads, and their proprietors usually permit any kind of promos to be published on their web page. For this reason, clicking on such banners is a risky thing: only the ad contractor realizes what will occur when you click this ad. Besides some “light” viruses, like adware or undesirable programs, you may likewise receive something a lot more threatening, like ransomware or coin miner; the large share of coin miners distribution is exactly after the malicious promotions.

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

Potentially unwanted programs, like Mous9.biz pop-up virus may initiate a lot of problems on your personal computer. Distracting is not the only problem – pop-up notifications can present you the advertisements, where you are offered to get one more unknown program, or “a amazing security tool”. Scareware is often distributed under the last motto. Potentially unwanted programs, in turn, can have spyware functionality. And it is pretty hard to distinguish the undesirable app from a good one, if you don’t know the exact names. Besides the PUPs and pseudo antiviruses, popup-related advertisements are also chosen as a spreading way by various trojan viruses, for example – coin miners. The consequences of activity of such viruses is 100% unpleasant, and can cost you several hundreds of dollars. And even if you are not clicking these banners, they may be clicked by someone who also makes use of your PC – parents, children, spouse, etc. So the situation can become much more serious, and it will be much harder to deal with it without data and money loss. It is recommended to wipe out the viruses with anti-malware programs as soon as possible.

How can I get rid of Mous9.biz pop-up advertisements?

The manual of Mous9.biz adware clearing contains 2 sections. First, we need to get rid of the malware, and then deal with the consequences of its activity. The removal task is quite simple, since it can be done even with using Microsoft Defender – security tool that is available on all computers with Windows 8/10. Nevertheless, due to its substantial resources utilization, as well as some bugs that can be serious for some groups of users, Defender is frequently turned off by the users, so its use is most likely impossible. Additionally, different trojan viruses are able to turn off the embedded antivirus. It is better to make use of the separated program that will not have such vulnerabilities.

I’d advise you to utilize Gridinsoft Anti-Malware² – a well-proven anti-malware device that will undoubtedly wipe out the viruses from your system and make an invulnerable shield with a Proactive protection feature. However, let’s deal with Mous9.biz adware initially.

Removing Mous9.biz 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 Mous9.biz 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

To reset Edge, do the following steps :

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 :

For Mozilla Firefox, do the next actions :

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 :

If you use Google Chrome

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 :

Opera can be reset in the next way

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 browsers are reset, you need to make sure that your browser will be connected the right DNS while connecting to the site you want. Create a text file named “hosts” on your computer’s desktop, after that open it and fill it with the following text³:

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.

Nonetheless, there is one issue that makes things a lot harder to restore, particularly without the anti-malware program. Most of adware versions that are used to show you the Mous9.biz pop-up advertisements are changing the deep browser setups, disabling an access to the settings tab. So, if you attempt to change your browser settings after your system was infected by pop-up-related malware, your browser will collapse quickly. Sometimes, you will see no crash, but large lag spike after pressing the “settings” key. Browser will stop responding for ~ 30 secs, and afterwards it will be back to the normal, till 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.

How to Remove Mous9.biz Pop-ups?

Name: Mous9.biz

Description: Mous9.biz - a lot of users became a target for the pop-up advertisements. I have a lot of friends who literally bombed me with the questions like “how to remove Mous9.biz push notifications?” or “why do Mous9.biz pop-ups keep appearing on Chrome even after AdBlock installation?”. In this article we will show you how to deal with Mous9.biz pop-ups, which may corrupt your browser’s correct performance, and create a lot of troubles while you are working.

Operating System: Windows

Application Category: Adware

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