Remove DNSUnlocker from Chrome, Internet Explorer, and Firefox

By | Posted on September 1, 2015 | Updated on September 23, 2015

DNSUnlocker pop-ups and redirect may appear on the browser if an adware is residing on the computer. This is considered as adware attack because the add-on that is injected into the browser was purposely made to deliver ads on the PC. Ads shown by DNSUnlocker may vary from simple endorsements to a fake program update that entices users to download and install a program. Once this is accomplished, other adware will get install on the computer and it starts to mess up with browsers like Internet Explorer, Mozilla Firefox, Google Chrome, and Safari.

Getting redirected to DNSUnlocker, including occasional pop-ups are caused by other malicious browser plug-in, extension, or add-on. Although there is no direct data that links this malicious site to adware, reports from computer users states that DNSUnlocker redirection and pop-ups started to appear after installing harmful browser add-on. Removing installed plug-ins also will not stop the pop-ups and redirects committed DNSUnlocker. You also need to delete risky files it has dropped inside the system and various folders.

We highly suggest removal of DNSUnlocker and relevant adware right away. Your data might be in danger with its presence. They tend to collect data from the computer like search terms, browsing habit, and other information that may be useful to effective show relevant ads in the future.


Other Detections:

Different anti-virus and anti-malware programs may name this threat according to their patterns. Here are some detection names: PUP.Optional.DNSUnlocker

DNSUnlocker Removal Guide

Stage 1 : Scan and Delete Adware with AdwCleaner

1. Download the tool called AdwCleaner from the location stated below.
Click here to download AdwCleaner (this will open a new window)

2. Once you have completed the download, please close all running programs on the computer.

3. Locate the file and double-click on adwcleaner_Ver.exe to start running the tool. Then, click on Scan button.


4. It searches for presence of harmful programs, plug-ins, add-ons, or any data that were found malicious and linked to DNSUnlocker. You need to Clean all items detected by this tool.

5. Once scan is done, the tool may need to reboot your computer to finalize the cleaning process.

6. After reboot, AdwCleaner will display the log file of the recent scan.

Stage 2 : Remove DNSUnlocker Add-on and Cleanup the Browser

After the previous scans, you may have deleted DNSUnlocker from the affected browser. This next step will ensure that no more module of adware will be left on the browser. This free tool scans and checks the browser for unwanted add-on and extension, and if found, Avast Browser Cleanup will give you a report and suggestion.

1. Download this free tool and save it to your desktop.
Avast Browser Cleanup Download Link (This will open in a new window)

2. Please install the program. Start the process by double-clicking on the executable file avast-browser-cleanup-sfx.exe.

3. When run, Avast Browser Cleanup performs a test on the browser. If unwanted entries were found, it will display a button ‘Remove all add-ons listed below and cleanup browser.’ You may remove all or delete one entry at a time.

Avast Browser Scanner

4. Avast Browser Cleanup will confirm before it permanently deletes the add-on. Please click Yes to proceed with the removal of DNSUnlocker on the affected browser.

Stage 3 : Remove DNSUnlocker data from Network Settings

1. Go to Start > Control Panel.

2. Click on View network status and tasks.


3. Click on the current connection to display network connection status. In this case, DNSUnlocker made changes to Wireless Network Connection.


4. Click on Properties button to display Local Area Connection or Wireless Network Connection properties.


5. Double-click on Internet Protocol Version 4 (TCP/IPv4).

6. Make sure that it is set to ‘Obtain an IP address automatically’ and ‘Obtain DNS server automatically’.


7. Click OK button to save the changes. You have just removed DNSUnlocker settings from your network properties.

Stage 4 : Clean Google Chrome DNS Cache

1. Open Google Chrome.

2. In the address bar, please type chrome://net-internals/#dns

3. Click on the Clear host cache button to remove any cache related to DNSUnlocker.


Stage 5 : Remove DNSUnlocker Data from Google Chrome

1. On Google Chrome browser, type chrome://settings/clearBrowserData on the address bar.


2. Click on Clear browsing data to remove any information that are relevant to DNSUnlocker.

Option: Alternative Method to Clean Up Internet Browser

Cleaning your internet browser from clutter and unwanted add-on/extension is a must when dealing with DNSUnlocker. The procedure below discuss on resetting various browsers to its default state.

Reset Mozilla Firefox to Default

This section describes how to remove unwanted extension from Firefox that may be related to DNSUnlocker.. This process can fix many browser issues by restoring Firefox to factory settings without affecting your essential information (bookmarks, browsing history, passwords, and Internet cookies) on the browser. If you desire to remove only specific extension, please see manual removal of add-on from Firefox.

1. Navigate to Firefox menu at the top of the browser and access the Help area. Click on Troubleshooting Information.

2. A new tab will appear. You will notice a section on upper-right corner of the screen stating Reset Firefox to its default state. Click the Reset Firefox button.

FF Reset

3. If confirmation window appears, click Reset Firefox to continue.

4. Firefox browser will close and start the resetting process. When done, it will display a list of restored data. DNSUnlocker should be gone by now. Click Finish to open a fresh version of Firefox.

Restore Internet Explorer to Default Settings

1. Open Internet Explorer and navigate to top menu. Click Tools, and then Internet Options.

2. Select Advanced tab on Internet Options window.

IE Reset

3. On lower part of the window, under Reset Internet Explorer Settings area, click the Reset button. Please see image for reference.

Your data like favorites, bookmark, and history will remain in the browser. However, this process may delete add-ons by DNSUnlocker and other unknown objects. If you prefer to carry out the procedure manually, please see add-on removal from Internet Explorer.

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