Remove Checkup01.biz Pop-up Virus — How to Remove?

Checkup01.biz pop-up alerts can appear unexpectedly, covering the subject of the page you went to or opening your web browser when you do not want it to be opened.

Clicking on the Checkup01.biz ad can result in the injection of various malware or unwanted programs. In this article, you will see the manual of Checkup01.biz popups removal in several manners, and also examining your computer for extra viruses existence.

It is better to prevent, than repair and repent!

Removing Checkup01.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 Checkup01.biz pop-ups?

Checkup01.biz popups are an outcome of adware presence. Adware is a type of malware that suggests you the pay-per-view of pay-per-click ads, which generates a significant amount of earnings for adware representatives. These promotions may have sometimes shocking composition, or have a web link to malicious content/website, considering that adware maintainers have no reason to examine the goodness of the content they are going to reveal – their solitary target is cash.

Checkup01.biz push notification.

Pop-up marketing itself is a good, affordable and also really effective marketing instrument¹. It permits the vendor to link the customers’ attention to their site, as well as the customers to receive the dynamic updates on the goods they want to purchase. When the person will receive a pop-up alert that the TV set he likes to buy is provided at the online store he/she checked out previously with a 15% discount, one will certainly use this possibility and purchase it. Considering the very low price for the popups and their targeting, such a promotion and marketing method is a favorite thing among the marketing departments of huge online stores.

Nonetheless, such a successful scheme could not be missed by virus developers. Option to show the popup advertisements forcibly to the victims of malware invasion is an ideal basis for malevolent tricks with the popup ads. And Checkup01.biz promotions is among hundreds that are “employed” in this system.

Here is a short info for the Checkup01.biz site

How have I got the Checkup01.biz virus?

There are a plenty of ways of getting infected by the adware that result in the Checkup01.biz popups tornado. A lion’s part of this computer virus incidents is after the free software or cracked programs, that are spread on the peering networks. Free software can additionally be downloaded from the official site, and the adware is presented as a legit bundled program.

There is no need to blame yourself. A lot of users frequently make use of the unreliable programs from untrusted sources: abandonware, a wide range of tools that are free of cost, or perhaps hacked programs. All of these sorts of applications are unsafe, since it is extremely easy to build in a Checkup01.biz malware under the guise of part of the license hacking script, or as a part of the self-made algoritm within the Windows optimization tool.

Checkup01.biz popup malware can additionally be hidden in the advertisement somewhere on the unusual site. Such web pages are typically loaded with colorful and blinking advertisements, and their owners typically accept any promotions to be posted on their web page. Hence, clicking such banners is a shot in the dark: only the ad contractor knows what will happen when you press this ad. Besides some “light” viruses, like adware or unwanted programs, you can also get something a lot more risky, like ransomware or coin miner; the big share of coin miners distribution is exactly after the malicious advertisements.

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

Potentially unwanted applications, like Checkup01.biz popup virus may cause a variety of different problems on your computer. Distracting is not the only effect – pop-up notifications may present you the promotions, where you are offered to get another strange application, or “a effective security tool”. Scareware is usually spread under the last slogun. Potentially unwanted applications, in turn, can have spyware functions. And it is quite hard to distinguish the unwanted app from a normal one, if you don’t know the exact names. Besides the PUPs and pseudo antiviruses, popup-related ads are also exploited as a distribution method by different trojan viruses, for instance – coin miners. The consequences of actions of such malware is 100% unwanted, and can cost you hundreds of dollars. And even if you are not clicking these ads, they can be clicked by someone who also makes use of your personal computer – parents, children, spouse, etc. So the things may become much more serious, and it will be much harder to deal with it without data and money loss. It is recommended to get rid of the viruses with anti-malware programs as soon as possible.

How can I get rid of Checkup01.biz pop-up advertisements?

The guide of Checkup01.biz adware elimination includes 2 parts. First, we need to get rid of the malware, and after that fix the results of its activity. The removal task is very easy, due to the fact that it can be executed even with making use of Microsoft Defender – anti-virus tool that is available on all computers with Windows 8/10. However, because of its significant resources usage, along with some defects that can be crucial for some categories of individuals, Defender is often disabled by the users, so its use is probably impossible. What’s more, different trojan viruses can disable the embedded antivirus. It is better to use the separated program that will not have such vulnerabilities.

I would certainly suggest you to use Gridinsoft Anti-Malware² – a well-proven antivirus tool that will definitely wipe out the malware from your system and also create an invulnerable cover with a Proactive protection feature. But let’s deal with Checkup01.biz adware initially.

Removing Checkup01.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 Checkup01.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 web browsers are reset, you need to make sure that your browser will definitely connect the appropriate DNS while connecting to the site you need. Make a text file titled “hosts” on your desktop, then open it and fill it with the following content³:

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 trouble that makes things a lot more difficult to restore, specifically without the anti-malware program. The majority of adware variants that are used to show you the Checkup01.biz pop-up advertisements are adjusting the deep browser configurations, disabling an access to the settings tab. So, if you try to change your browser settings after your system was penetrated by pop-up-related malware, your browser will certainly crash soon. In some cases, you will see no crash, however, significant lag spike after pushing the “settings” key. Browser will stop reacting for ~ 30 secs, and afterwards it will be back to the typical, up until you try to open settings once again.

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 Checkup01.biz Pop-ups?

Name: Checkup01.biz

Description: Checkup01.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 Checkup01.biz push notifications?” or “why do Checkup01.biz pop-ups keep appearing on Chrome even after AdBlock installation?”. In this article we will show you how to deal with Checkup01.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 the reasons why I suggest it for malware removal.
3. Official Microsoft guide for hosts file reset.