How to remove To4s.biz pop-ups? — Fix Guide

Written by Wilbur Woodham
To4s.biz pop-up notifications may appear unexpectedly, covering the post of the site you explored or opening your web browser when you don’t want it to be opened.

Clicking on the To4s.biz promotion may lead to the injection of various malware or unwanted programs. In this post, you will see the tutorial of To4s.biz popups clearing in several manners, and also checking your system for additional viruses presence.

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What are To4s.biz pop-ups?

To4s.biz popups are a result of adware activity. Adware is a kind of malware that shows you the pay-per-view of pay-per-click promotions, which creates a massive amount of income for adware distributors. These advertisements might include explicit information, or have a link to harmful content/website, since adware maintainers have no purpose to inspect the goodness of the content they are going to reveal – their solitary target is money.

To4s.biz push notification

To4s.biz push notification.

Pop-up advertising itself is a very good, cheap and very effective advertising instrument1. It permits the vendor to attach the customers’ attention to their website, as well as the buyers to receive the dynamic updates on the goods they intend to purchase. When the customer will receive a pop-up alert that the TV set he likes to buy is offered at the online store he/she saw earlier with a 15% price cut, one will undoubtedly use this chance and buy it. Considering the incredibly low cost for the popups and their targeting, such a marketing tool is a much-loved thing amidst the marketing departments of big internet retailers.

Nevertheless, such a profitable plan could not be missed by virus creators. Potential to demonstrate the popup ads forcibly to the people of malware invasion is a perfect basis for malevolent manipulations with the popup promotions. And To4s.biz ads is one of hundreds that are “employed” in this scheme.

Here is a short info for the To4s.biz site
Site To4s.biz
Hosting AS39572 DataWeb Global Group B.V.
Netherlands, Amsterdam
Infection Type Adware, Push notifications, Unwanted Ads, Pop-up Ads
IP Address 185.177.94.108
Symptoms Annoying pop-up ads in the right corner.
Similar behavior To3s, To8s, To7s
Fix Tool
To remove possible virus infections, try to scan your PC

How have I got the To4s.biz virus?

There are a lot of methods of becoming infected by the adware that create the To4s.biz popups tornado. A lion’s part of this malware cases is after the freeware or cracked programs, that are distributed on the peering networks. Freeware may also be downloaded from the main web page, and the adware is presented as a legitimate bundled program.

There is no need to blame yourself. A number of people often work with the uncertain programs from untrusted sources: abandonware, various utilities that are free of cost, or perhaps hacked programs. Every one of these kinds of applications are dangerous, because it is very simple to build in a To4s.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.

To4s.biz popup virus can also be hidden in the ad somewhere on the unusual web page. Such websites are usually filled with intense and blinking advertisements, and their proprietors often accept any type of promotions to be posted on their page. Thus, clicking on such banners is a risky thing: only the advertisement contractor realizes what will occur when you press this advertisement. Besides some “light” viruses, like adware or undesirable programs, you may also receive something much more threatening, like ransomware or coin miner; the big share of coin miners distribution is exactly after the malicious ads.

People dislike popups

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

Potentially unwanted applications, like To4s.biz pop-up virus may initiate a lot of troubles on your personal computer. Distracting is not the only effect – pop-up notifications can display you the ads, where you are offered to get another strange application, or “a perfect security tool”. Scareware is often distributed with the use of the last motto. Potentially undesirable applications, in turn, can have spyware functionality. 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 advertisements are also exploited as a distribution way by various trojan viruses, for example – coin miners. The consequences of actions of such viruses is 100% unpleasant, and can cost you several hundreds of dollars. And even if you are not interacting with these banners, they may be clicked by someone who also makes use of your PC – parents, children, spouse, etc. So the things may become much more serious, and it will be much harder to deal with it without data loss. It is recommended to get rid of the viruses with antivirus programs as soon as possible.

How can I get rid of To4s.biz pop-up advertisements?

The manual of To4s.biz adware removal consists of 2 sections. Initially, we need to get rid of the malware, and after that deal with the effects of its activity. The elimination process is pretty easy, due to the fact that it can be performed even with using Microsoft Defender – security software that is present on all personal computers with Windows 8/10. Nonetheless, because of its substantial resources utilization, along with some defects that can be serious for some categories of individuals, Defender is frequently turned off by the users, so its usage is likely impossible. In addition, different trojan viruses can shut off the embedded antivirus. It is far better to make use of the separated program that will not have such vulnerabilities.

I’d advise you to use Gridinsoft Anti-Malware2 – a well-proven security device that will surely wipe out the viruses from your personal computer and also make an invulnerable cover with a Proactive protection feature. However, let’s take care of To4s.biz adware initially.

Removing To4s.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.
  • Gridinsoft Anti-Malware during the scan process

  • 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.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of To4s.biz malware the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning

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. Reseting the Edge browser

  3. 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. The first step to revert Mozilla Firefox

  3. In the next screen, find the “Refresh Firefox” option :
  4. The second step of Firefox restoration
    After choosing this option, you will see the next message :
    The last step for Firefox
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 connect the appropriate DNS while connecting to the website you want. Create a text file titled “hosts” on your desktop, then open it and fill it with the following content3:

# 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.

Nevertheless, there is one problem that makes the things much harder to restore, particularly without the anti-malware program. A lot of adware versions that are utilized to show you the To4s.biz pop-up ads are adjusting the deep browser settings, disabling an access to the settings tab. So, if you attempt to change your browser settings after your computer was penetrated by pop-up-related malware, your browser will collapse quickly. Sometimes, you will see no crash, but significant lag spike after pressing the “settings” key. Browser will stop reacting for ~ 30 secs, and then it will be back to the normal, 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.

Tools tab in GridinSoft Anti-Malware

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.

Reset Browser Settings tab in GridinSoft Anti-Malware

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 To4s.biz Pop-ups?

Name: To4s.biz

Description: To4s.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 To4s.biz push notifications?” or “why do To4s.biz pop-ups keep appearing on Chrome even after AdBlock installation?”. In this article we will show you how to deal with To4s.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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References

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

About the author

Wilbur Woodham

I was a technical writer from early in my career, and consider IT Security one of my foundational skills. I’m sharing my experience here, and I hope you find it useful.

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