Remove Coustaushaw.com Virus — How to Fix Guide

Written by Wilbur Woodham
Coustaushaw.com pop-up advertisements appear when you do not expect, detracting and annoying you. However, they are slightly more than simple pop-ups – their essence is purely malignant, and they may introduce other malware to your device. In this post, I will show you the guide how to remove Coustaushaw.com pop-up advertisements and explain how to avoid them in the future.

Any time you interact with Coustaushaw.com push notifications will be ineffective at best. In worst case scenario, the pages it can throw you to may introduce malware to your system. These pop-up advertisements may also promote fake shopping sites which will take your money and payment info. The latter generally ends up with losing all the money you have on the exposed card.

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What are Coustaushaw.com pop-up advertisements?

As the pop-up definition goes, these are short and small advertisements that attract your attention to a product they promote. But the difference between regular push notifications and Coustaushaw.com notifications is the malicious origins of the latter. Common push notifications are offered for you to enable with a legitimate purpose – keep you aware about the fresh posts, discounts and so on. It is an effective approach to help your website to retain visitors and help the interested ones to have the best deal.

Brief summary of the Coustaushaw.com pop-up ads:
Name Coustaushaw.com
Hosting AS13335 Cloudflare, Inc.
United States, San Francisco
IP Address 172.64.101.37
Malware type Adware1
Effect Unwanted pop-up advertisements
Hazard level Medium
Malware source Apps from third-party websites, ads on dubious websites
Similar behavior Green, Heavypcchained, Knuckledd
Removal method
To remove possible virus infections, try to scan your PC

Coustaushaw.com pop-up advertisements, as opposed, are related to less legit websites. You will generally observe the offer to turn them on after a redirection from another website. There’s nothing bad in redirecting unless it throws you into such a dubious place. In this case, enabling pop-up ads is offered under the guise of the anti-bot check-up. In other cases, the web pages can refuse to show you the contents unless you turn on these pop-up advertisements. These theses should already be the red flag, as websites generally feature a less obscure anti-bot mechanism. Seeing this demand should be the reason to close the page right away. In some cases, even after clicking “Allow”, you will not see the web page – the only page it has is a landing page with the offer to turn on the pop-up notifications.

Coustaushaw.com push notification

Coustaushaw.com push notification.

How does this work?

Most of browsers support turning on pop-ups from websites. Websites, on the other hand, may send out notifications with the content of their choice. It may be an advertisement of the page listed on this particular website, as well as an ad of the page of their partner. As a result, you may see the pop-up from site X, but clicking it will throw you to site Y – because a referral link to that website was added.

Crooks rely on this feature in their attempt to gain money using illegal advertising. They trick victims into turning on pop-ups, and after that just spread numerous promotions of other crooks they contract with. As you can suppose, no legit organisations will have a business with fraudsters. All the Coustaushaw.com push ads you may see lead to other untrustworthy sites. In some cases, the same victim can be trapped by multiple pop-up spamming web pages, and its web browser will turn into a complete mess.

The banners these rascals show are paid under the pay-per-view model. It commonly provides a miserable payment for one view, but when you have hundreds of users and show them hundreds of ads each day – that is a much bigger sum. Despite the majority of these banners giving no result at all, it can still bring all the parties a lot of profit.

Are Coustaushaw.com pop-up notifications dangerous?

Yes, they are. Initially, they may look harmless – just a blinking pop-up that appears from time to time. However, the things this window promotes differ drastically from what you used to see in pop-up notifications. Coustaushaw.com website is controlled by fraudsters, who intentionally spread hundreds of irrelevant ads in pop-ups. They also never follow any common sense and can launch sporadic pop-up advertisements into a hurricane of promotions. For weak systems, that may be enough to cause performance issues. But that is not all problems these pop-up ads carry.

Why people dislike popups

As with any other thing related to illegal ads, Coustaushaw.com pop-up ads do not contain any legit deals to offer. Even when crooks make the banners similar to ones from Amazon, Walmart or Ebay, the web page these ads will throw you to are completely different. And these pages may offer you to turn on other pop-ups, install a “useful” program, or pay for a thing at a big discount and never receive it. Let’s leave aside the cases when pop-ups promote phishing pages or straightforward malware. There’s no way these pages will bring you any good, thus interacting with them is a very bad idea. For the same reason, Coustaushaw.com push notifications are not recommended to click on either, and the best solution is to disable them as soon as possible.

How to remove Coustaushaw.com pop-ups?

Fortunately, Coustaushaw.com pop-up notifications removal is not very complicated. They sit in the web browser and can’t hide themselves among system files. Nonetheless, as I pointed out above, some pop-up ads can deliver malicious software to your system. It is nearly impossible to show all cases, and manual malware removal is inconvenient. Therefore, after getting rid of the pop-up notifications it is recommended to use anti-malware software. I’d especially recommend that if you have never allowed pop-up advertisements, and they still appeared. That may point at adware activity. GridinSoft Anti-Malware will perfectly fit both recovery and malware scanning purposes, because of its system recovery functionality and multi-component detection system.

First of all, you should reset your browser settings. You can do that in both manual and automatic manner. The former, obviously, takes more time to complete and may be somewhat complicated if you have never done that. Automated supposes the use of anti-malware programs that can reset all browser settings at once.

Reset your browsers 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 options for each browser. By default, they are set up in a manner that 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 the latter is also able to reset the HOSTS file without any additional commands.

Reset your browsers manually

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 browsers are reset, you need to ensure that your browser will connect the right DNS while connecting to the website you need. Create a text file titled “hosts” on your pc’s desktop, then open it and fill it with the following lines2:


# 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.

Scan your system for possible viruses

After removing the Coustaushaw.com push notifications, it’s time to see if these pop-ups brought any threat to your system. Launch GridinSoft Anti-Malware, and then click on Standard scan. It will be enough in most cases to find and remove malware. The scan will last 5-10 minutes; you are free to use your system during that process.

GridinSoft Anti-Malware during the scan process

Once the scan is complete, you will see the detections or a notification about a clean system. Proceed with pressing the Clean Up button (or OK when nothing is detected).

GridinSoft scan finished

How to Remove Coustaushaw.com Pop-ups?

Name: Coustaushaw.com

Description: Coustaushaw.com - 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 Coustaushaw.com push notifications?” or “why do Coustaushaw.com pop-ups keep appearing on Chrome even after AdBlock installation?”. In this article we will show you how to deal with Coustaushaw.com 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 this malware type on GridinSoft Encyclopedia.
  2. 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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