This article aims to help you by showing how to remove the SimilarWeb browser hijacker completely from your computer system.
A new browser intrusive software has been reported to be associated with multiple different types of websites, including SimilarWeb. The software heavily modifies the web browser of the affected computers while in the same time aims to display you different advertisements, which may result in your computer’s performance to decrease significantly. In addition to this, SimilarWeb hijacker may also lead you to third-party websites, which may be scamming and even malicious for your computer. If you want to remove the SimilarWeb-related hijacker, we recommend you to read the following article.
In order to slither in your computer without you noticing it, the SimilarWeb hijacker may use different strategies. It may come unnoticed as a result of having another adware on your computer which has obtain administrative permissions to automatically install other ad-supported programs alongside it.
The primary method by which potentially unwanted software, like SimilarWeb may spread is via bundled installers of third-party applications. Such installation programs are usually helping programs that users often download, like .iso mount tools, CD/DVD burning software, media players, etc. Since some freeware providing websites make profits by adding installers of third-party programs, you may also ecounter SimilarWeb unwanted software in one of those installation steps. Since it is not easy to find, you can usually locate it in the “Custom” or “Advanced” installation modes and it may pretend to be added as a free extra to the installation.
SimilarWeb Hijacker – More Information
When it has been installed on your computer, under the pretext it is a “helper” software, SimilarWeb browser hijacker may do a lot more harm than actually help your online browsing experience. Besides adding values in the Windows Registry Editor which may result in the PUP (potentially unwanted program) to run on Windows start and be automatically added as a browser extension, the SimilarWeb – related program may also change your home page to the following one:
This web page may or may not be from the actual SimilarWeb website and it includes tracking technologies in order to monitor your online activities. Such can be:
LSOs or Flash Cookies.
These tracking technologies could be used for different purposes. In the case of SimilarWeb redirect “virus”, they may be used to obtain your:
Online clicks history.
The websites you have visited.
Where you have clicked online.
This information may be used for different purposes and this does not exclude the possibility of it being shared or sold for profit for online advertising research. In addition to this, the information may also be used to display you targeted adverts. These are different types, and they are based on what you looked for while browsing. Such ads may come in different forms, for example:
Pop-up ads with or without sound.
Highlighted text with suspicious web links on the web pages you visit.
The websites these advertisements may lead you may be different types and this also includes suspicious websites, scamming sites and even malicious web links that may infect your computer with malware (worst case scenario). Only one more reason to remove the SimilarWeb hijacker if you see it’s suspicious web page appearing on your computer without your permission or knowledge of installing it on purpose.
Remove SimilarWeb Redirect “Virus” Completely
In order to remove this unwanted program from your computer, you should follow the removal instructions for SimilarWeb hijacker below. They are divided in manual removal and automatic removal. Since manual removal may not guarantee you will remove SimilarWeb hijacker fully, because you may miss something. security experts strongly recommend using a SimilarWeb removal software which will automatically scan for and remove all objects in a fast manner.
Manually delete SimilarWeb from Windows and your browser
Note! Substantial notification about the SimilarWeb threat: Manual removal of SimilarWeb requires interference with system files and registries. Thus, it can cause damage to your PC. Even if your computer skills are not at a professional level, don’t worry. You can do the removal yourself just in 5 minutes, using a malware removal tool.
1.Remove or Uninstall SimilarWeb in Windows
Remove or Uninstall SimilarWeb in Windows.
Step 1: Remove/Uninstall SimilarWeb in Windows
Here is a method in few easy steps to remove that program.No matter if you are using Windows 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program get left behind, and that can lead to unstable work of your PC, mistakes with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it.
Hold the Windows Logo Button and “R” on your keyboard. A Pop-up window will appear (fig.1).
In the field type in “appwiz.cpl” and press ENTER (fig.2).
This will open a window with all the programs installed on the PC.
Select the program that you want to remove, and press “Uninstall” (fig.3).
Follow the instructions above and you will successfully uninstall SimilarWeb.
2.Remove SimilarWeb from Your Browser
Remove SimilarWeb from Your Browser.
Remove a toolbar from Mozilla FirefoxRemove a toolbar from Google Chrome Remove a toolbar from Internet Explorer Remove a toolbar from Safari
Start Mozilla Firefox Open the menu window
Select the “Add-ons” icon from the menu
Select SimilarWeb and click “Remove“
After SimilarWeb is removed, restart Mozilla Firefox by closing it from the red “X” in the top right corner and start it again.
Start Google Chrome and Open the drop menu
Move the cursor over “Tools” and then from the extended menu choose “Extensions“
From the opened “Extensions” menu locate SimilarWeb and click on the garbage bin icon on the right of it.
After SimilarWeb is removed, restart Google Chrome by closing it from the red “X” in the top right corner and start it again.
Start Internet Explorer:
Click “‘Tools’ to open the drop menu and select ‘Manage Add-ons’
In the ‘Manage Add-ons’ window, make sure that in the first window ‘Add-on Types’, the drop menu ‘Show’ is on ‘All add-ons’
Select SimilarWeb to remove, and then click ‘Disable’. A pop-up window will appear to inform you that you are about to disable the selected toolbar, and some additional toolbars might be disabled as well. Leave all the boxes checked, and click ‘Disable’.
After SimilarWeb has been removed, restart Internet Explorer by closing it from the red ‘X’ in the top right corner and start it again.
Open the drop menu by clicking on the sprocket icon in the top right corner.
From the drop menu select ‘Preferences’
In the new window select ‘Extensions’
Click once on SimilarWeb
A pop-up window will appear asking for confirmation to uninstall SimilarWeb. Select ‘Uninstall’ again, and the SimilarWeb will be removed.
3.Fix registry entries created by SimilarWeb on your PC
Fix registry entries created by SimilarWeb on your PC.
Some malicious scripts may modify the registry entries of your computer to change different settings. This is why manual clean up of your Windows Registry Database is strongly recommended. Since the tutorial on how to do this is a bit lenghty, we recommend following our instructive article about fixing registry entries.
Automatically remove SimilarWeb by downloading an advanced anti-malware program
1. Remove SimilarWeb with SpyHunter Anti-Malware Tool
Remove SimilarWeb with SpyHunter Anti-Malware Tool
1. Install SpyHunter to scan for and remove SimilarWeb.2. Scan with SpyHunter to Detect and Remove SimilarWeb.
Step 1:Click here to go to SpyHunter’s download instruction page. Step 2: Guide yourself by the download instructions provided for each browser. Step 3: After you have installed SpyHunter, wait for it to automatically update.
Step1: After the update process has finished, click on the ‘Scan Computer Now’ button. Step2: After SpyHunter has finished scanning your PC for any SimilarWeb files, click on the ‘Fix Threats’ button to remove them automatically and permanently. Step3: Once the intrusions on your PC have been removed, it is highly recommended to restart it.
2. Back up your data to secure it against attacks related to SimilarWeb in the future
Back up your data to secure it against attacks in the future
IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data automatically with cloud backup and insure it against any type of data loss on your device, even the most severe. We recommend reading more about and downloading SOS Online Backup.
1. For Windows 7 and earlier 1. For Windows 8, 8.1 and 10 1. Enabling the Windows Defense Feature (Previous Versions)
1-Click on Windows Start Menu
2-Type Backup And Restore
3-Open it and click on Set Up Backup
4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next.
5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next.
6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by SimilarWeb.
1-Press Windows button + R
2-In the window type ‘filehistory’ and press Enter
3-A File History window will appear. Click on ‘Configure file history settings’
4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup.
5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from SimilarWeb.
1- Press Windows button + R keys.
2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run.
3- A System Properties windows should appear. In it choose System Protection.
5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection.
6- Click on Ok and you should see an indication in Protection settings that the protection from SimilarWeb is on. Restoring a file via Windows Defense feature:
1-Right-click on the encrypted file, then choose Properties.
2-Click on the Previous Versions tab and then mark the last version of the file.
3-Click on Apply and Ok and the file encrypted by SimilarWeb should be restored.
Optional: Using Alternative Anti-Malware Tools
Remove SimilarWeb Using Other Alternative Tools
STOPZilla Anti Malware
1. Download and Install STOPZilla Anti-malware to Scan for And Remove SimilarWeb. Step 1: Download STOPZilla by clicking here. Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards. Step 3: After you have downloaded the setup, simply open it. Step 4: The installer should appear. Click on the ‘Next’ button. Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again. Step 6: Review and click on the ‘Install’ button. Step 7: After the installation process has completed click on the ‘Finish’ button.
2. Scan your PC with STOPZilla Anti Malware to remove all SimilarWeb associated files completely. Step 1:Launch STOPZilla if you haven’t launched it after install. Step 2: Wait for the software to automatically scan and then click on the ‘Repair Now’ button. If it does not scan automatically, click on the ‘Scan Now’ button. Step 3: After the removal of all threats and associated objects, you should Restart your PC.
Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.
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Stop Push Pop-ups
How to Remove SimilarWeb from Windows.
Step 1: Scan for SimilarWeb with SpyHunter Anti-Malware Tool
1.1 Click on the "Download" button to proceed to SpyHunter's download page.
1.2 After you have installed SpyHunter, wait for it to update automatically.
1.3 After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.
1.4 After SpyHunter 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 'Next' button.
If any threats have been removed, it is highly recommended to restart your PC.
Step 2: Boot Your PC In Safe Mode
2.1 Hold Windows key + R
2.2 The "Run" Window will appear. In it, type "msconfig" and click OK.
2.3 Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.
2.4 When prompted, click on "Restart" to go into Safe Mode.
2.5 You can recognise Safe Mode by the words written on the corners of your screen.
Step 3: Uninstall SimilarWeb and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs.No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it.
3.1 Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.
3.2 In the field type in "appwiz.cpl" and press ENTER.
3.3 This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.
Step 4: Clean Any registries, Created by SimilarWeb on Your PC.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by SimilarWeb there. This can happen by following the steps underneath:
4.1 Open the Run Window again, type "regedit" and click OK.
4.2 When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.
4.3 You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.
Video Removal Guide for SimilarWeb (Windows).
Get rid of SimilarWeb from Mac OS X.
Step 1: Uninstall SimilarWeb and remove related files and objects
1.1 Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
1.2 Find Activity Monitor and double-click it:
1.3 In the Activity Monitor look for any suspicious processes, belonging or related to SimilarWeb:
Tip: To quit a process completely, choose the “Force Quit” option.
1.4 Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.
1.5 In the Applications menu, look for any suspicious app or an app with a name, similar or identical to SimilarWeb. If you find it, right-click on the app and select “Move to Trash”.
1.6 Select Accounts, after which click on the Login Items preference.
Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to SimilarWeb. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.
1.7 Remove any left-over files that might be related to this threat manually by following the sub-steps below:
Go to Finder.
In the search bar type the name of the app that you want to remove.
Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove SimilarWeb via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!
1: Click on "Go" and Then "Go to Folder" as shown underneath:
2: Type in "/Library/LauchAgents/" and click Ok:
3: Delete all of the virus files that have similar or the same name as SimilarWeb. If you believe there is no such file, do not delete anything.
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove SimilarWeb files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as SimilarWeb, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Click the button below below to download SpyHunter for Mac and scan for SimilarWeb:
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Erase SimilarWeb from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window:
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Uninstall SimilarWeb from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Remove SimilarWeb from Safari
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the SimilarWeb will be removed.
How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.
Start Safari and then click on the gear leaver icon.
Click the Reset Safari button and you will reset the browser.
Eliminate SimilarWeb from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.
Remove Push Notifications from Your Browsers
Turn Off Push Notifications from Google Chrome
To disable any Push Notices from Google Chrome browser, please follow the steps below:
Step 1: Go to Settings in Chrome.
Step 2: In Settings, select “Advanced Settings”:
Step 3: Click “Content Settings”:
Step 4: Open “Notifications”:
Step 5: Click the three dots and choose Block, Edit or Remove options:
Remove Push Notifications on Firefox
Step 1: Go to Firefox Options.
Step 2: Go to “Settings”, type “notifications” in the search bar and click "Settings":
Step 3: Click “Remove” on any site you wish notifications gone and click “Save Changes”
Stop Push Notifications on Opera
Step 1: In Opera, press ALT+P to go to Settings.
Step 2: In Setting search, type “Content” to go to Content Settings.
Step 3: Open Notifications:
Step 4: Do the same as you did with Google Chrome (explained below):
Eliminate Push Notifications on Safari
Step 1: Open Safari Preferences.
Step 2: Choose the domain from where you like push pop-ups gone and change to "Deny" from "Allow".
It may slow your computer down significantly and display advertisements. The main idea is for your information to likely get stolen or more ads to appear on your device.
The creators of such unwanted apps work with pay-per-click schemes to get your computer to visit risky or different types of websites that may generate them funds. This is why they do not even care what types of websites show up on the ads. This makes their unwanted software indirectly risky for your OS.
What Are the Symptoms of SimilarWeb?
There are several symptoms to look for when this particular threat and also unwanted apps in general are active:
Symptom #1: Your computer may become slow and have poor performance in general.
Symptom #2: You have toolbars, add-ons or extensions on your web browsers that you don't remember adding.
Symptom #3: You see all types of ads, like ad-supported search results, pop-ups and redirects to randomly appear.
Symptom #4: You see installed apps on your Mac running automatically and you do not remember installing them.
Symptom #5: You see suspicious processes running in your Task Manager.
If you see one or more of those symptoms, then security experts recommend that you check your computer for viruses.
What Types of Unwanted Programs Are There?
According to most malware researchers and cyber-security experts, the threats that can currently affect your Mac can be the following types:
Rogue Antivirus programs.
What to Do If I Have a "virus" like SimilarWeb?
With few simple actions. First and foremost, it is imperative that you follow these steps:
Step 1:Find a safe computer and connect it to another network, not the one that your Mac was infected in.
Step 2:Change all of your passwords, starting from your email passwords.
Step 3: Enable two-factor authentication for protection of your important accounts.
Step 4: Call your bank to change your credit card details (secret code, etc.) if you have saved your credit card for online shopping or have done online activities with your card.
Step 5: Make sure to call your ISP (Internet provider or carrier) and ask them to change your IP address.
Step 6: Change your Wi-Fi password.
Step 7:(Optional): Make sure to scan all of the devices connected to your network for viruses and repeat these steps for them if they are affected.
Step 8:Install anti-malware software with real-time protection on every device you have.
Step 9: Try not to download software from sites you know nothing about and stay away from low-reputation websites in general.
If you follow these recommendations, your network and all devices will become significantly more secure against any threats or information invasive software and be virus free and protected in the future too.
How Does SimilarWeb Work?
Once installed, SimilarWeb can collect data about your web browsing habits, such as the websites you visit and the search terms you use. This data is then used to target you with ads or to sell your information to third parties.
SimilarWeb can also download other malicious software onto your computer, such as viruses and spyware, which can be used to steal your personal information and show risky ads, that may redirect to virus sites or scams.
Is SimilarWeb Malware?
The truth is that PUPs (adware, browser hijackers) are not viruses, but may be just as dangerous since they may show you and redirect you to malware websites and scam pages.
Many security experts classify potentially unwanted programs as malware. This is because of the unwanted effects that PUPs can cause, such as displaying intrusive ads and collecting user data without the user’s knowledge or consent.
About the SimilarWeb Research
The content we publish on SensorsTechForum.com, this SimilarWeb how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific, adware-related problem, and restore your browser and computer system.
How did we conduct the research on SimilarWeb?
Please note that our research is based on independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware, adware, and browser hijacker definitions.
Furthermore, the research behind the SimilarWeb threat is backed with VirusTotal.
To better understand this online threat, please refer to the following articles which provide knowledgeable details.