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How to uninstall the OpenBook adware from your operating system?

Also Known As: Ads by OpenBook
Type: Adware
Damage level: Medium

What is OpenBook?

OpenBook is an application categorized as adware. It operates by running intrusive advertisement campaigns, i.e., delivers various ads. Additionally, OpenBook likely has data tracking abilities. Since most users download/install adware products inadvertently, they are also classified as PUAs (Potentially Unwanted Applications).

OpenBook adware

OpenBook adware in detail

Adware enables the placement of third-party graphical content on any visited website and/or different interfaces. This software delivers pop-ups, surveys, coupons, banners, full-page, and other intrusive advertisements. They severely diminish the browsing experience by overlying webpage content and slow down the browsing speed.

The displayed ads can be misleading, untrustworthy, and even harmful. Intrusive adverts promote a variety of sale-based, rogue, unreliable, deceptive/scam, compromised, and malicious sites. Furthermore, some of these advertisements can download/install software (e.g., PUAs) stealthily - when they are clicked on.

What is more, adware usually has data tracking abilities; hence, OpenBook likely has such functionalities as well. Targeted information includes: URLs visited, pages viewed, search queries typed, IP addresses/ geolocations, personally identifiable details, and so forth. The collected data is then shared with and/or sold to third-parties.

To summarize, the presence of unwanted software on devices can lead to system infections, serious privacy issues, financial losses, and even identity theft. Therefore, it is highly recommended to remove all suspect applications and browser extensions/plug-ins immediately upon detection.

Threat Summary:
Name Ads by OpenBook
Detection Names (application) N/A (VirusTotal)
Detection Names (installer setup) N/A (VirusTotal)
Symptoms Seeing advertisements not originating from the sites you are browsing. Intrusive pop-up ads. Decreased Internet browsing speed.
Distribution Methods Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers.
Damage Decreased computer performance, browser tracking - privacy issues, possible additional malware infections.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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Adware in general

InstaQuickRecipe Buddy, AdBlock Now, and SketchBall are some examples of apps within the adware category. They appear ordinary and innocuous. Users are lured into download/installation with promises of "handy" features, which are typically nonoperational.

In fact, practically all PUAs use fake functionalities as bait. The only goal of unwanted applications is to generate revenue for the developers. Therefore, instead of delivering on any promises, PUAs can run intrusive advert campaigns, force-open unreliable and malicious webpages, hijack browsers, and collect private information.

How did OpenBook install on my computer?

Select PUAs (e.g., OpenBook) have "official" promotional sites from which they can be downloaded. These applications are also spread via intrusive advertisements. Upon being clicked, the ads can execute scripts to download/install this software without user permission.

PUAs are distributed via downloaders/installers of other products. This deceptive marketing tactic of packing regular products with unwanted or malicious additions - is termed "bundling". Rushed downloads/installations (e.g., ignored terms, skipped sections, etc.) increase the risk of unintentionally allowing bundled content into the device.

How to avoid installation of potentially unwanted applications?

It is advised to research software before download/installation. Furthermore, all downloads must be done from official and verified sources. Untrustworthy download channels, e.g., unofficial and free file-hosting websites, Peer-to-Peer sharing networks, and other third-party downloaders - commonly offer bundled and hazardous content.

When downloading/installing, it is important to read terms, study available options, use the "Custom/Advanced" settings, and opt-out from supplementary apps, tools, features, etc. Intrusive advertisements appear legitimate; however, they redirect to various questionable sites (e.g., gambling, pornography, adult-dating, and so forth).

In case of encounters with such ads and/or redirects, the device must be inspected and all dubious applications and browser extensions/plug-ins detected - removed from it without delay. If your computer is already infected with OpenBook, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate this adware.

Screenshot of OpenBook adware's installation setup:

OpenBook adware installer

Screenshot of the website used to promote OpenBook adware:

OpenBook adware promoting website

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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Quick menu:

OpenBook adware removal:

Windows 10 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.

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.

macOS (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.

OpenBook adware uninstall via Control Panel

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

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

Remove OpenBook adware from Internet browsers:

At time of research, OpenBook did not install its browser plug-ins on Internet Explorer, Google Chrome, or Mozilla Firefox, however, it was bundled with other adware. Therefore, you are advised to remove all potentially unwanted browser add-ons from your Internet browsers.

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

Google Chrome logoRemove malicious extensions from Google Chrome:

Removing OpenBook  ads from Google Chrome step 1

Click the Chrome menu icon Google Chrome menu icon (at the top right corner of Google Chrome), select "More tools" and click "Extensions". Locate all recently-installed suspicious browser add-ons and remove them.

Removing OpenBook ads from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the ads by openbook, 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 logoRemove malicious plugins from Mozilla Firefox:

Removing OpenBook ads 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 all recently-installed suspicious browser plug-ins.

Removing OpenBook ads from Mozilla Firefox step 2

Optional method:

Computer users who have problems with ads by openbook 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 ads by openbook, 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 ads by openbook from your computer, please ask for assistance in our malware support forum.

Post a comment:
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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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Malware activity

Global malware activity level today:

Medium threat activity

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

QR Code
Ads by OpenBook QR code
Scan this QR code to have an easy access removal guide of Ads by OpenBook on your mobile device.
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