is an application that belongs to the software category of browser hijackers. is compatible with most Windows versions and can infect popular web browsers such as Chrome, Firefox, Edge and others.

The Virus will make unwanted changes to your browser.

If has invaded your system, then you have likely noticed certain changes that have been made to the way your browser looks, as well as the way it has started behaving. For instance, some of the most common symptoms accompanying a browser hijacker infection include the change in your homepage and/or the default search engine that you use. These can be replaced by news ones, and if you try to change these settings again yourself, the browser hijacker simply won’t allow it.

This, by the way, is often a reason for people to assume that they may have been infected by some virus or malware. And aiding that confusion is also the fact that programs like tend to generate massive quantities of online ads in the browsers of the infected users. Popups, box messages, in-text links and animated banners can be raining on you from every corner of your screen during browsing sessions, which is something also often associated with virus infections.

The Bestdealfor21 Virus

Bestdealfor21 is not malicious and it will not seek to harm your machine in any way. The most Bestdealfor21 can do is frustrate you with its constant page redirects to various sponsored web locations and it may potentially cause some sluggishness in your system if it’s using too much of its RAM and CPU to generate all the ads.

Nevertheless, browser hijackers like, Auto Refresh Malware and Agafurretor are actually also known for their capacity to potentially expose users to danger. This can happen as a result of being redirected a website that has been compromised by cybercrminals for example, and that way your private information may no longer be safe. Alternatively, you may even encounter malware, even such extremely harmful types like Trojans and ransomware, for instance. Therefore, it’s a good idea to try and stay away from the online ads to the best of your ability.

And in order to avoid being redirected to some site or page that you have no interest in anyway, it’s best to simply see to the removal of altogether. We understand that this is not always as straightforward a task as it may initially sound. And the reason for that is because browser hijacker developers don’t like to give users an easy way out of these infections, so they simply omit including an uninstallation menu that most regular applications have. Therefore, if you try uninstalling on your own, there’s a high chance you will miss some of the scattered components, and the hijacker will simply reinstall itself in your system again.

So to give you a hand with this, we have designed a special removal guide that you can use below. Be sure to follow the steps in it exactly as described and you should have cleaned your system from the infection in no time.


Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Changes made to the browser’s configurations such as a new browser homepage and a replaced default search engine. 
Distribution Method Program bundles are the leading source of browser hijackers and other such ad-generating applications. 
Detection Tool Virus Removal

To try and remove quickly you can try this:

  1. Go to your browser’s settings and select More Tools (or Add-ons, depending on your browser).
  2. Then click on the Extensions tab.
  3. Look for the extension (as well as any other unfamiliar ones).
  4. Remove by clicking on the Trash Bin icon next to its name.
  5. Confirm and get rid of and any other suspicious items.

If this does not work as described please follow our more detailed removal guide below.

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).


Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous.

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:
Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result
Bestdealfor21.lifeAVG AV

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections.

Hold together the Start Key and R. Type appwiz.cpl –> OK.

You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

Type msconfig in the search field and hit enter. A window will pop-up:

Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

If there are suspicious IPs below “Localhost” – write to us in the comments.

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

  1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
  2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
  3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.

  • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).

Properties —–> Shortcut. In Target, remove everything after .exe.  Remove from Internet Explorer:

Open IE, click —–> Manage Add-ons.

Find the threat —> Disable. Go to —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply. Remove from Firefox:

Open Firefoxclick  ——-> Add-ons —-> Extensions.

Find the adware/malware —> Remove.
Bestdealfor21.lifeRemove from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

Rename it to Backup Default. Restart Chrome.

Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


About the author


Violet George

Violet is an active writer with a passion for all things cyber security. She enjoys helping victims of computer virus infections remove them and successfully deal with the aftermath of the attacks. But most importantly, Violet makes it her priority to spend time educating people on privacy issues and maintaining the safety of their computers. It is her firm belief that by spreading this information, she can empower web users to effectively protect their personal data and their devices from hackers and cybercriminals.

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