Home » Browser hijacker » Effective Guide to Remove Sf-addon.com

Effective Guide to Remove Sf-addon.com

What bad luck! My computer has been infected by Sf-addon.com redirect. All my web browsers including Internet Explorer, Mozilla Firefox, and Google Chrome are attacked completely. I kept redirecting to this webpage whenever I try to go online. I failed to remove this virus via anti-virus program. How can I get rid of this browser hijack redirect from my computer and change my browser back? Can you help me? And any info or help you give me would be of great help.

What is Sf-addon.com?

Sf-addon.com is a fake search site which allows remote hackers get access to the infected machine once it enters a target computer system. Does not like other browser hijacker that have no advertisements on its homepage, this redirect virus acts more obvious that there are some of ads popping up on the start page of its main interface, such as pop up games. If you find that this site has been set as a homepage of Google Chrome, Firefox and IE, or maybe it sets itself to be the start page without your permission, you should be caution that your machine might be infected by browser hijacker. This is a unreliable search website that supported by third parties under the purpose of promoting commercial links, ads and websites that can be inserted amid the search results it provides. With this forcible redirect virus, here comes other annoying troubles as pop up ads, rogue search results and risky infections. The original intention of developing this redirect virus is to infect and take over control the infected web browsers, by doing this, the developers of this redirect virus are able to get remote control over the affected machine. As long as all the browser installed on the infected machine are under its charge, it begins bringing unreliable and even dangerous contents to fill up the entire screen.

This redirect virus has been wildly spread and have been used by many net users as a search provider. In this case, it can help to earn a lot of money for criminals once it is used for searching for the reason that the main method used to get pay from third parties is to have promotion contents displayed within the search results. The efforts of showing random commercial search results can benefit its creators. Once victims get involved in the trap of this redirect virus, they may need to deal with endless problems like privacy issues, data theft, information stolen, web browser redirection, pop up ads, poor performance and system death. No one can ensure the safety of the affected system if this infection has entered the system along with other threats. Sometimes the infection of browser hijacker even hits the security defense of computer, causing system security loopholes and vulnerabilities. One way to solve the problems triggered by this threat is to take actions to remove Sf-addon.com from the system and clean all leftovers in advance.

Infection Symptoms:

It sneaks into the computer without your consent and knowledge.
It takes control over your browser by tampering with browser parameters.
It redirects you to irrelevant content web pages and displays tons of pop-up ads on the main computer screen.
The harmful redirect virus slows down your browser and makes the whole computer sluggish.
It can help cyber criminals gather your significant personal data for illegal benefit.

The Reason Why Your Antivirus Fails to Delete This Redirect

Sf-addon.com is a tricky and stubborn redirect virus, which is hard to remove. It uses root kit technology to hide itself deep inside the system and changes its path location frequently. Thus, many security tools fail to find out its location exactly, not to mention to remove it. Under circumstances, you can not only rely on security tools to remove this virus, but take measure to snap out of it from your computer thoroughly. The following efficient guide will do you a great favor.

Sf-addon.com Removal Instructions

Method one: Use SpyHunter to quickly remove Sf-addon.com from your computer

Method Two: Manually get rid of Sf-addon.com from your computer

Method one: Use SpyHunter to quickly remove Sf-addon.com from your computer

SpyHunter is a professional and real-time anti-spyware application, which is created to assist the average computer user in protecting their PC from malicious threats. If are not a good at computer, you can download and install it on your PC, and use it to remove this redirect virus from your PC automatically and easily.

Step 1: Click the button below to start to download SpyHunter .

Download SpyHunter Now

Step 2: Double-click on the download file. If you are asked “Do you want to run this file?” you should click on “Run” button to continue.


Step 3: In this step, you must agree with the license agreement. Tick “I accept the license agreement”, and click “next button to go on”.


Step 4: Once SpyHunter has been successfully installed, click on “Finish” button to exit this installation.


Step 5: After the installation, Run SpyHunter and click “Malware Scan” button to perform a full and quick system scan on your PC.


Step 6: As soon as the scanning process is over, choose “Select All” to get rid of all the threats on your PC.


Method Two: manually get rid of Sf-addon.com from your computer

The manual removal is quite dangerous and complicated. If you have a wealth of knowledge about the computer, you can manually remove this redirect virus from your computer.

Always be sure to back up your PC before making any changes.

Step 1: Clear cookies from affected browsers

Internet Explorer:

Start the browser.
Click on Tools in the top menu and go to Internet Options.


Switch to the General tab, Delete Cookies button can be directly seen in IE6, IE7. Click on Delete Cookies button and then press OK button in the next confirm window.


Mozilla Firefox:

Start Mozilla Firefox.
Click on Tools in the top menu and point to Options.


Press Privacy tab, click on “removal individual cookies” link and then hit OK button.


Google Chrome:

Launch Google Chrome.
Click on wrench icon in the upper right corner and navigate to Settings option.


Go to the Under the Hood tab, click on the Clear Browsing data button.
In the next pop up window, tick “Delete cookies and other site data” box, select “Everything” on the right side of “Clear data from this period”, click on Clear browsing data and press Close button.


Step 2: Clean add-ons and extensions from infected browsers

Click Tools in the Menu bar and then click Internet Options.
Click programs tab, click Manage add-ons and disable all the suspicious add-ons.


Mozilla Firefox:

Click the Firefox menu in the upper left corner and select Add-ons.


Click Extensions, find out and disable any suspicious add-ons.

Google Chrome:

Click on wrench icon in the upper right corner, click on Tools and select Extensions option.


Find out and remove any unknown extensions.

Step 3: Show hidden files and folders

For Windows 7 and Windows 8:

Press Win+E keys together to open Windows Explorer.
Click on Organize and select Folder and search options in Windows7.

Folder and search options in Windows Explorer in Windows 7

Click on the View tab and then click Options in Windows 8.

View Options in Windows Explorer

In the Folder Options, click Show hidden files and folders, uncheck Hide protected operating system files (Recommended) Under Advanced settings, and then click OK button.

Step 4: Delete all malicious registry entries related to the redirect virus.

Press Win+R to get the Run window or you can navigate to Start menu and go to select Run.
Type “regedit” into the Run box, and click OK button to proceed.
When Registry Editor is opened, search for and delete all associated registry entries below:


HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\[RANDOM CHARACTERS].exe
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Random

Step 5: Search for and delete files created by this Sf-addon.com in local disk.

C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\*.exe
C:\Documents and Settings\LocalService\Local Settings\*.*

Step 6: Restart your machine


Sf-addon.com is a serious computer threat, which can damage target computer terribly and cause many inconveniences for the victims eventually. Furthermore, this hijacker virus may violate and expose your privacy. Hence, this browser hijacker should be removed from the infected computer without any hesitation.

The above manual removal is a risky and complicated job, because the virus mutates very quickly to avoid being detected and deleted from your computer. Victims are required to edit registry entries and system files on their own, and any puny mistakes during the manual removal process will lead to system crash. If you are a computer novice or If you have no idea about where its malicious files are really hiding, it is recommended that you use the Powerful Automatic Virus Removal Tool-SpyHunter to remove Sf-addon.com redirect virus automatically and safely. (Download SpyHunter Now)

Download SpyHunter Now