Checkrecaptcha.eu Ads Removal. How to stop pop-up?

Written by Valdis Koks

Checkrecaptcha.eu search hijacker is a type of malware that squeezes into your WIndows, and afterwards switches the search engine settings in your browser to one which it is paid for. It also makes different unpleasant modifications that might lead to personal data leaks, in addition to other malware penetration. In this article, you will read the manual of Checkrecaptcha.eu hijacker clearing in various techniques, as well as additionally the solution of making your web browser as good as new.

icon hijacker - Do I really need it?

Checkrecaptcha.eu Info

Name Checkrecaptcha.eu extension
Type Browser hijacker1
Short Description The unwanted software that amends important browser settings without the user’s permission.
Symptoms The Checkrecaptcha.eu hijacker replaces the browser parameters set by the users and replaces these settings with its own values.
Distribution Method Bundling with Freeware or Shareware, misleading pop-up ads produced by adware.
Detection Tool Inspect If Your System Has Been Affected by the Checkrecaptcha.eu hijacker.

The methods of injection of Checkrecaptcha.eu search hijackers are different. The majority of them belong to the malware dispersing through the malvertising or malicious links of different sites. Occasionally, your system may be infected with this malware through the trojan-downloader, which is utilized to distribute different other malware. There is a solitary form of this unwanted program – web browser plugin that may build right into any web browser which supports the add-on setup2.

You will not likely setup this plugin by yourself, due to the fact that their names are pretty dubious, and the usefulness is extremely debatable. The “developers” of Checkrecaptcha.eu hijacker usually specify that it can save the .doc/.docx documents from the sites already to .pdf format, or to save the entire web site on your disk. It is quite difficult to picture if someone can be needed in such operations in 2023, when the Web access is not time-limited as well as every system has the ability to start the needed .docx files at Google Docs.

Nevertheless, besides their uselessness, they may easily be located in the Chrome Web Store. Certainly, virus experts sound the alarm concerning such spam right into the legitimate source of browser extensions, calling for the Google reaction – removing these extensions from their site. But they are still not hurrying to take care of that safety issue.

Icon - Your PC hijacker

Is the Checkrecaptcha.eu virus?

At the first sight, you may assume that these redirects are just bothersome, but not harmful. Due to this reason a great deal of people are simply playing for time instead of removing this malware, getting much more chances of being contaminated with various other viruses, which are far more severe than Checkrecaptcha.eu is.

Besides the altered search engine or search results, you can also see various ads even on those internet sites that do not have any kind of promotions on it by default. And you may just misclick while turning off the promotion, and begin the downloading of an unrecognized file, which may be a virus, or a potentially undesirable program, and even ransomware – whatever the maintainers of this hijacker desire.

If your web browser is damaged due to the Azorult trojan task, the system may begin malfunctioning in the near future – this symptome is one of the most typical in case of trojan infiltration.

Icon - remove Checkrecaptcha.eu hijacker

How to remove Checkrecaptcha.eu?

First, let me say several words about prevention the Checkrecaptcha.eu virus penetration. It is very simple to speak about the tactics of shielding your PC from such frustrating things as browser hijackers, however, it is extremely simple to be caught on this bait even being an experienced user. As it was mentioned above, this virus may hide after the eye-catching (at the first sight) advertisement, or in packs with other adware you may get in dozens of ways. But no matter the usual intricacy of the injection techniques, it is very easy to prevent the Checkrecaptcha.eu hijacker appearing in your system:

  • Do not follow the dubious links;
  • Restrict the usage of pseudo-free software (one which is offered as free, but has an additional unwanted programs in its pack);
  • Leave the habit of clicking advertisements on the web. If you need to buy something, it is better to google it;
  • Avoid downloading the files from dubious sources, like forums or file sharing websites.

Preparation before removing Checkrecaptcha.eu.

Before starting the actual uninstall procedure, we recommend that you do the following introductory milestones.

  • Make sure you have this hands-on tutorial constantly all set to use.
  • Carry out a back-up of every one of your information, including the kept logins, passwords and various other qualifications. You should support your details with a cloud back-up option and also see to it your files are shielded from any type of kind of loss, even from the most extreme infections.
  • Wait up until the long-lasting back-up procedure is over.

Step 1: Uninstall Checkrecaptcha.eu and related software from Windows

Here is a method in few simple stages that must have the ability to uninstall most applications. Either you use Windows 10, 8, 7, Vista or XP, these milestones will work well. Moving the app or its folder to the Trash can be a very wrong idea. In case you do that, remnants of the app may remain, and that can cause the unstable performance of your system, malfunctions with the file type associations and other unpleasant behavior. The effective solution to get an app off your device is to remove it manually. To do that:

1. Keep holding the Windows Logo Button and “R” on your keyboard. A Pop-up window will soon arrive.

Windows keyboard R

2. In the field that appeared, type in “appwiz.cpl” -1  and choose OK – 2.

Run appwiz.cpl

 

3. This will open a window with all the apps available on the device. Choose the app that you want to get rid of, then choose “Uninstall

Follow the steps above and you will successfully get rid of most unwanted apps.

Step 2: Get rid of Checkrecaptcha.eu from all your available browsers.

Mozilla FirefoxGoogle ChromeInternet ExplorerMicrosoft Edge

1. Launch Mozilla Firefox. Go to its menu window

2. Choose the “Add-ons” icon in the menu.

3. Find the unwanted extension and select “Remove

Mozilla Firefox Add-ons Remove

4. Upon deleting the extension, reload Mozilla Firefox, closing it with the help of a red “X” button in the upper right corner and start it again.

1. Launch Google Chrome and go to its drop menu

Google Chrome drop menu click

2. Click on “Tools” and then in the extended menu select “Extensions

Google Chrome Tools select Extensions

3. In the “Extensions” menu find the unwanted extension and apply the “Remove” button related to it.

Google Chrome Extensions Remove

4. As soon as the extension is deleted, reload Google Chrome by closing it by means of the red “X” button at the top right corner and launch it again.

1. Launch Internet Explorer

2. Click on the gear icon marked ‘Tools’ to open the drop menu and choose ‘Manage Add-ons’

Manage-add-ons

3. In the “Manage Add-ons” window, locate the extension you want to delete and then click “Remove”. A pop-up window will come up to inform you that you are about to delete the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and choose “Remove”.

Internet Explorer extension removal

4. Once the unwanted extension is deleted, reload Internet Explorer by shutting it down from the red “X” button located at the top right corner and launch it again.

1. Launch Edge

2. Access the drop menu by clicking on the icon at the top right corner.

3. From the drop menu choose “Extensions”.

Microsoft Edge menu Extensions

4. Locate the suspected dangerous extension you want to delete and then click on the Remove button.

Microsoft Edge Extensions Remove

Step 3: Clean any registries that could be added by Checkrecaptcha.eu on your device.

The usually attacked registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by going to the Windows registry editor and getting rid of any values added by Checkrecaptcha.eu. Follow the steps below:

  1. Start the Run Window command once again, type “regedit” and click OK.Window command regedit
  2. As soon as you open it, you can freely go to the Run and RunOnce keys, whose locations are displayed above.Window command Run and RunOnce keys
  3. You can delete the value of the virus by right-clicking on it and deleting it.Window command regedit delete the value virus

Tip: To locate a virus-created value, you can right-click on it and select “Modify” to find which file it is set to run. If this is the malware file location, delete the value.

Step 4: Scan for Checkrecaptcha.eu with Loaris Trojan Remover

1. Click on the “Download” button to proceed to Loaris Trojan Remover download.

It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by Trojan Remover. Click on the corresponding links to check License AgreementPrivacy Policy.

2. Click “Install” to start.

Loaris Trojan Remover Install

There were 4 scan types suggested:

  • Standard Scan.
  • Full Scan.
  • Custom Scan.
  • Removable Scan.

 

3. After the installed has finished, click on the ‘Scan’ tab. Click on ‘Full Scan’.

Loaris Trojan Remover Full Scan

4. Once the scanning is started, Loaris will initiate the thorough analysis of your device and may soon identify specific threats currently slowing down the performance of your system. Make sure to wait until the scanning is completed to let the software fully evaluate the safety of your workstation.

Loaris Trojan Remover - scan in process

5. After Loaris Trojan Remover has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Apply’ button. There were options to move the files to quarantine, ignore or delete them.

Loaris Trojan Remover - show viruses

If any threats have been removed, it is highly recommended to restart your PC.

 

  1. About browser hijackers on Wikipedia
  2. Possible danger of free browser extensions

About the author

Valdis Koks

Security engineer, reverse engineering and memory forensics

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