Pop-up Ads Removal Guide

Can’t Remove ads? This page includes detailed Removal instructions!

Cdnsure is a form of software that, without your knowledge, directs your browser to specific websites. Although it may at first glance seem like a standard Chrome extension, it actively supports obscure websites through automatic page-redirects. It’s critical to remove Cdnsure right away to prevent being redirected to dubious websites with harmful material. Your computer has probably been taken over by Cdnsure if you are seeing obtrusive pop-ups, banners, and other advertisements on your screen. Furthermore, it’s possible that Cdnsure Virus has changed both your homepage and preferred search engine. Furthermore, users should use caution when browsing the internet and be on the lookout for any suspicious or unwanted pop-up windows, particularly those that solicit confidential data or urge the download of unidentified software.

Here is a screenshot of the website:



How did I get infected with?

Most of the time, social engineering methods are used to disseminate pop-ups onto a user’s device. The practice of brainwashing others to force them into making choices or divulging private information is known as social engineering. In the case of pop-ups, users may be directed to a malicious website by clicking on a link in an email, social media communication, or compromised website. Before they can access the website’s contents, visitors may see a message requesting that they activate browser notifications. If the user agrees to this request, the website will then be able to display unwanted advertisements as browser alerts.

Why is having dangerous? pop-ups are frequently used to promote malicious software, phony downloads, giveaway schemes, and questionable websites. These scams can be used to trick users into installing malware or giving personal and money information. Identity theft, financial loss, and other forms of cybercrime could result as a consequence. When is installed in the browser, unwanted and possibly intrusive pop-up ads, banner ads, and other advertisements are shown, slowing down and obstructing browsing. Along with displaying phishing sites, the browser hijacker can be used to steal personal and financial data. Then, this information might be nefariously applied to crimes like financial deception or identity theft.

How to Remove virus 

The infection is specifically designed to make money to its creators one way or another. The specialists from various antivirus companies like Bitdefender, Kaspersky, Norton, Avast, ESET, etc. advise that there is no harmless virus.

If you perform exactly the steps below you should be able to remove the infection. Please, follow the procedures in the exact order. Please, consider to print this guide or have another computer at your disposal. You will NOT need any USB sticks or CDs.

STEP 1: Track down in the computer memory

STEP 2: Locate startup location

STEP 3: Delete traces from Chrome, Firefox and Internet Explorer

STEP 4: Undo the damage done by the virus

STEP 1: Track down in the computer memory

  • Open your Task Manager by pressing CTRL+SHIFT+ESC keys simultaneously
  • Carefully review all processes and stop the suspicious ones.


  • Write down the file location for later reference.

Step 2: Locate startup location

Reveal Hidden Files

  • Open any folder
  • Click on “Organize” button
  • Choose “Folder and Search Options”
  • Select the “View” tab
  • Select “Show hidden files and folders” option
  • Uncheck “Hide protected operating system files”
  • Click “Apply” and “OK” button

Clean virus from the windows registry

  • Once the operating system loads press simultaneously the Windows Logo Button and the R key.


  • A dialog box should open. Type “Regedit”


Depending on your OS (x86 or x64) navigate to:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] or
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] or

  • and delete the display Name: [RANDOM]

delete backgroundcontainer

  • Then open your explorer and navigate to: %appdata% folder and delete the malicious executable.

Clean your HOSTS file to avoid unwanted browser redirection

Navigate to %windir%/system32/Drivers/etc/host

If you are hacked, there will be foreign IPs addresses connected to you at the bottom. Take a look below:


STEP 3 : Clean traces from Chrome, Firefox and Internet Explorer

  • Open Google Chrome

  • In the Main Menu, select Tools then Extensions
  • Remove the by clicking on the little recycle bin
  • Reset Google Chrome by Deleting the current user to make sure nothing is left behind

disable from chrome

  • Open Mozilla Firefox

  • Press simultaneously Ctrl+Shift+A
  • Disable the unwanted Extension
  • Go to Help
  • Then Troubleshoot information
  • Click on Reset Firefox

remove from firefox

  • Open Internet Explorer

  • On the Upper Right Corner Click on the Gear Icon
  • Click on Internet options
  • go to Toolbars and Extensions and disable the unknown extensions
  • Select the Advanced tab and click on Reset

remove from ie

  • Restart Internet Explorer

Step 4: Undo the damage done by

This particular Virus may alter your DNS settings.

Attention! this can break your internet connection. Before you change your DNS settings to use Google Public DNS for, be sure to write down the current server addresses on a piece of paper.

To fix the damage done by the virus you need to do the following.

  • Click the Windows Start button to open the Start Menu, type control panel in the search box and select Control Panel in the results displayed above.
  • go to Network and Internet
  • then Network and Sharing Center
  • then Change Adapter Settings
  • Right-click on your active internet connection and click properties. Under the Networking tab, find Internet Protocol Version 4 (TCP/IPv4). Left click on it and then click on properties. Both options should be automatic! By default it should be set to “Obtain an IP address automatically” and the second one to “Obtain DNS server address automatically!” If they are not just change them, however if you are part of a domain network you should contact your Domain Administrator to set these settings, otherwise the internet connection will break!!!

You must clean all your browser shortcuts as well. To do that you need to

  • Right click on the shortcut of your favorite browser and then select properties.


  • in the target field remove argument and then apply the changes.
  • Repeat that with the shortcuts of your other browsers.
  • Check your scheduled tasks to make sure the virus will not download itself again.

How to Permanently Remove Virus (automatic) Removal Guide

Please, have in mind that once you are infected with a single virus, it compromises your system and let all doors wide open for many other infections. To make sure manual removal is successful, we recommend to use a free scanner of any professional antimalware program to identify possible registry leftovers or temporary files.