BlockAndSurf Ads

Also Known As: Block-N-Surf virus
Type: Adware
Distribution: Low
Damage level: Medium

BlockAndSurf ads removal instructions

What is BlockAndSurf?

Created by Revizer Technologies Ltd, the Block and Surf (Block-N-Surf) browser add-on claims to hold a database of many black list domains, which potentially keeps children safe on the web by preventing viewing of adult content websites. The software is developed to work with Google Chrome and Mozilla Firefox, and while its initiative to protect children is valid, this application has some downsides. For example, it displays unwanted online ads including banners, “pop-ups”, “pop-unders", sponsored links, coupons, deals, shopping comparison, content suggestions, and other online advertisements, which computer users may find difficult to remove. Another downside of the BlockAndSurf app is that it tracks users' Internet browsing activity by recording IP addresses, MAC addresses, hardware information, geolocations, default search providers, web pages visited, and other information. This information can be personally identifiable, and therefore, the presence of this add-on on your system may lead to serious privacy issues and identity theft. Users wishing to protect children online should opt for trusted antivirus and anti-spyware programs (with parental controls). Inadvertent applications installation can occur when users install free software downloaded from the Internet. BlockAndSurf is ad-supported and may be bundled with free software for monetization purposes.

blockandsurf adware

To avoid installation of unwanted browser toolbars and add-ons (which may lead to redirects and unwanted ad issues), install free software with caution - check each installation window carefully, opting out of any browser add-ons and disallowing changes to the browser homepage and default search engine settings. Although BlockAndSurf is not directly linked to malware or virus infections, having this browser add-on installed on your computer is not recommended since it displays unwanted advertising and diminishes Internet browsing performance. If you care about computer safety, opt for applications developed by reputable security companies.

Most potentially unwanted applications are distributed via small programs called 'download clients' within freeware download websites such as download.com, soft32.com, softonic.com, and many others. Download clients are used to monetize the free services provided by these websites by offering installation of promoted browser extensions together with the chosen free software. Therefore, careless download and installation of freeware commonly results in adware or malware infections. This situation can be prevented by closely observing each step during the download of free software and never accepting installation of any additional applications offered. If you are installing downloaded software, select the 'Custom' or 'Advanced' installation options, rather than 'Quick' or 'Regular' - this will reveal any bundled applications attempting stealth installation, and you will be able to decline them. Users who have installed BlockAndSurf and observe unwanted online advertisements when browsing the Internet (Ads by BlockAndSurf), should follow this removal guide to eliminate this adware from their computers.

The BlockAndSurf potentially unwanted application generates ads from the following sources: Dealply, Superfish, Jollywallet, Text Enhance, GetDeal, Daily Offer Service, IRobinhood, PriceSparrow, and CouponBuddy.

Deceptive free software installers used in BrowseAndSurf adware distribution:

blockandsurf adware installer sample 8 blockandsurf adware installer sample 7 blockandsurf adware installer sample 6 blocknsurf adware installer sample 5 blocknsurf adware installer sample 4 blocknsurf  adware installer sample 3 blockandsurf adware installer sample 2 blockand surf adware installer

BlockAndSurf adware generating intrusive online advertisements ('Ads by BlockAndSurf'):

blocknsurf in-text ads blocknsurf intrusive banner ads blocknsurf tech support ads blockandsurf generating banner ads sample 2 blockandsurf adware generating intrusive online advertisements

BlockAndSurf adware generating pop-up ads ('Brought to you by BlockAndSurf'):

blockandsurf adware generating pop-up ads

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Quick menu:

BlockAndSurf adware removal:

Windows 7 users:

Accessing Programs and Features (uninstall) in Windows 7

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

Windows XP users:

Accessing Add or Remove Programs in Windows XP

Click Start, choose Settings and click Control Panel. Locate and click Add or Remove Programs.

Windows 10 and Windows 8 users:

Accessing Programs and Features (uninstall) in Windows 8

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Mac OSX users:

Uninstall app in OSX (Mac)

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

block and surf uninstall via Control Panel

In the uninstall programs window, look for "BlockAndSurf", select this entry and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted program (which causes BlockAndSurf ads), scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove BlockAndSurf from Internet browsers:

Video showing how to remove potentially unwanted browser add-ons:

Google Chrome logo Remove malicious extensions from Google Chrome:

Removing block and surf from Google Chrome step 1

Click the Chrome menu icon Google Chrome options icon (at the top right corner of Google Chrome), select "Tools" and click on "Extensions". Locate: "BlockAndSurf", select this entry and click the trash can icon.

Removing block and surf from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the block-n-surf virus, reset your Google Chrome browser settings. Click the Chrome menu icon Google Chrome menu icon (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

Google Chrome settings reset step 1

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

Google Chrome settings reset step 2

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Google Chrome settings reset step 3

Mozilla Firefox logo Remove malicious plugins from Mozilla Firefox:

Removing block and surf from Mozilla Firefox step 1

Click the Firefox menu firefox menu icon (at the top right corner of the main window), select "Add-ons". Click on "Extensions", in the opened window remove "BlockAndSurf".

Removing block and surf from Mozilla Firefox step 2

Optional method:

Computer users who have problems with block-n-surf virus removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, firefox menu icon in the opened menu, click Help.

Accessing settings (Reset Firefox to default settings step 1)

Select Troubleshooting Information.

Accessing Troubleshooting Information (Reset Firefox to default settings step 2)

In the opened window, click the Refresh Firefox button.

Clicking on Refresh Firefox button (Reset Firefox to default settings step 3)

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Confirm your want to reset Firefox settings to default (Reset Firefox to default settings step 4)

safari browser logoRemove malicious extensions from Safari:

removing adware from safari step 1 - accessing preferences

Make sure your Safari browser is active, click Safari menu, and select Preferences....

removing adware from safari step 2 - removing extensions

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

resetting safari step 1

In the opened window select all history and click the Clear History button.

resetting safari step 2

Microsoft Edge (Chromium) logoRemove malicious extensions from Microsoft Edge:

Removing adware from Microsoft Edge step 1

Click the Edge menu icon Microsoft Edge (chromium) menu icon (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Removing adware from Microsoft Edge step 2

Optional method:

If you continue to have problems with removal of the block-n-surf virus, reset your Microsoft Edge browser settings. Click the Edge menu icon Microsoft Edge (chromium) menu icon (at the top right corner of Microsoft Edge) and select Settings.

Microsoft Edge (Chromium) reset step 1

In the opened settings menu select Reset settings.

Microsoft Edge (Chromium) reset step 2

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

Microsoft Edge (Chromium) reset step 3

  • If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

declining installation of adware while downloading free software sampleCommonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

Removal assistance:
If you are experiencing problems while trying to remove block-n-surf virus from your computer, please ask for assistance in our malware support forum.

Post a comment:
If you have additional information on block-n-surf virus or it's removal please share your knowledge in the comments section below.

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Software uninstall instructions
Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
Block-N-Surf virus QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Block-N-Surf virus on your mobile device.
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