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How to get rid of the BoostSign adware?

Also Known As: Ads by BoostSign
Type: Mac Virus
Damage level: Medium

What is BoostSign adware?

The purpose of BoostSign is to generate advertisements and promote a fake search engines/hijack browsers (by changing their settings). It is uncommon for apps like BoostSign to be downloaded and installed by users on purpose. Thus, they are categorized as potentially unwanted applications (PUAs).

BoostSign adware

BoostSign adware in detail

BoostSign generates pop-ups, banners, coupons, or other ads. Those ads could open various scams asking to provide credit card details, addresses, bank account numbers or other details, download pages for PUAs, some malicious sites. Also, those ads could be capable of downloading or even installing PUAs by running certain scripts.

BoostSign hijacks a web browser by changing the default search engine, homepage, and new tab page's URL to a fake search engine. Fake search engines can show results generated by other (legitimate or shady) search engines or generate their own results containing links to potentially malicious pages.

Threat Summary:
Name Ads by BoostSign
Threat Type Adware, Mac malware, Mac virus
Detection Names Avast (MacOS:Adload-AG [Adw]), Combo Cleaner (Gen:Variant.Adware.MAC.AdLoad.13), ESET-NOD32 (A Variant Of OSX/Adware.Synataeb.G), Kaspersky (Not-a-virus:HEUR:AdWare.OSX.Adload.j), Full List (VirusTotal)
Additional Information This application belongs to Adload malware family.
Symptoms Your Mac becomes slower than normal, you see unwanted pop-up ads, you are redirected to dubious websites.
Distribution methods Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers, torrent file downloads.
Damage Internet browser tracking (potential privacy issues), display of unwanted ads, redirects to dubious websites, loss of private information.
Malware Removal (Mac)

To eliminate possible malware infections, scan your Mac with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
▼ Download Combo Cleaner for Mac
To use full-featured product, you have to purchase a license for Combo Cleaner. Limited seven days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

BoostSign in general

BoostSign has the qualities of adware and a browser hijacker. It could be capable of accessing collecting) sensitive information. A couple examples of other apps similar to BoostSign are LatestExtended, KeyData, and FocusDeploy. Most of them are promoted/distributed using questionable methods.

How did BoostSign install on my computer?

Lots of potentially unwanted applications can be found in downloaders and installers) as optional downloads or installations. Users download and install PUAs when they leave "Custom", "Manual", "Advanced", or similar settings available in those downloaders and installers unchanged.

Also, users download or install PUAs through shady advertisements and third-party, fake installers available for download on untrustworthy websites. If clicked, certain ads can run certain scripts and cause unexpected downloads or even installations.

How to avoid installation of potentially unwanted applications?

Software (and files) should be downloaded from official, trustworthy websites via direct links. Third-party downloaders, installers, Peer-to-Peer networks, unofficial websites, and other sources are not trustworthy. Programs should not be downloaded or installed unless all unwanted offers are deselected using the settings mentioned in the previous section.

Advertisements displayed on shady pages should not be clicked. If your computer is already infected with BoostSign, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

Pop-up that appears after installation of the BoostSign adware:

boostsign adware pop-up displayed once installation is done

BoostSign's Contents folder:

boostsign adware contents folder

Instant automatic Mac 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 Mac malware. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner for Mac By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. Limited seven days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

Quick menu:

Video showing how to remove BoostSign adware using Combo Cleaner:

BoostSign adware removal:

Remove BoostSign-related potentially unwanted applications from your "Applications" folder:

mac browser hijacker removal from applications folder

Click the Finder icon. In the Finder window, select "Applications". In the applications folder, look for "MPlayerX", "NicePlayer", or other suspicious applications and drag them to the Trash. After removing the potentially unwanted application(s) that cause online ads, scan your Mac for any remaining unwanted components.

Remove ads by boostsign related files and folders:

Finder go to folder command

Click the Finder icon, from the menu bar. Choose Go, and click Go to Folder...

step1Check for adware-generated files in the /Library/LaunchAgents folder:

removing adware from launch agents folder step 1

In the Go to Folder... bar, type: /Library/LaunchAgents

removing adware from launch agents folder step 2
In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step2Check for adware generated files in the /Library/Application Support folder:

removing adware from application support folder step 1

In the Go to Folder... bar, type: /Library/Application Support

removing adware from application support folder step 2
In the “Application Support” folder, look for any recently-added suspicious folders. For example, “MplayerX” or “NicePlayer”, and move these folders to the Trash.

step3Check for adware-generated files in the ~/Library/LaunchAgents folder:

removing adware from ~launch agents folder step 1


In the Go to Folder bar, type: ~/Library/LaunchAgents

removing adware from ~launch agents folder step 2

In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step4Check for adware-generated files in the /Library/LaunchDaemons folder:

removing adware from launch daemons folder step 1
In the Go to Folder... bar, type: /Library/LaunchDaemons

removing adware from launch daemons folder step 2
In the “LaunchDaemons” folder, look for recently-added suspicious files. For example “com.aoudad.net-preferences.plist”, “com.myppes.net-preferences.plist”, "com.kuklorest.net-preferences.plist”, “com.avickUpd.plist”, etc., and move them to the Trash.

step 5 Scan your Mac with Combo Cleaner:

If you have followed all the steps in the correct order you Mac should be clean of infections. To be sure your system is not infected run a scan with Combo Cleaner Antivirus. Download it HERE. After downloading the file double click combocleaner.dmg installer, in the opened window drag and drop Combo Cleaner icon on top of the Applications icon. Now open your launchpad and click on the Combo Cleaner icon. Wait until Combo Cleaner updates it's virus definition database and click "Start Combo Scan" button.

scan-with-combo-cleaner-1

Combo Cleaner will scan your Mac for malware infections. If the antivirus scan displays "no threats found" - this means that you can continue with the removal guide, otherwise it's recommended to remove any found infections before continuing.

scan-with-combo-cleaner-2

After removing files and folders generated by the adware, continue to remove rogue extensions from your Internet browsers.

Ads by BoostSign removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove ads by boostsign related Safari extensions:

safari browser preferences

Open Safari browser, from the menu bar, select "Safari" and click "Preferences...".

safari extensions window

In the preferences window, select "Extensions" and look for any recently-installed suspicious extensions. When located, click the "Uninstall" button next to it/them. Note that you can safely uninstall all extensions from your Safari browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Safari.

firefox browser iconRemove malicious plug-ins from Mozilla Firefox:

Remove ads by boostsign related Mozilla Firefox add-ons:

accessing mozilla firefox add-ons

Open your Mozilla Firefox browser. At the top right corner of the screen, click the "Open Menu" (three horizontal lines) button. From the opened menu, choose "Add-ons".

removing malicious add-ons from mozilla firefox

Choose the "Extensions" tab and look for any recently-installed suspicious add-ons. When located, click the "Remove" button next to it/them. Note that you can safely uninstall all extensions from your Mozilla Firefox browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Mozilla Firefox.

chrome-browser-iconRemove malicious extensions from Google Chrome:

Remove ads by boostsign related Google Chrome add-ons:

removing malicious google chrome extensions step 1

Open Google Chrome and click the "Chrome menu" (three horizontal lines) button located in the top-right corner of the browser window. From the drop-down menu, choose "More Tools" and select "Extensions".

removing malicious Google Chrome extensions step 2

In the "Extensions" window, look for any recently-installed suspicious add-ons. When located, click the "Trash" button next to it/them. Note that you can safely uninstall all extensions from your Google Chrome browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Google Chrome.

Frequently Asked Questions (FAQ)

What harm can adware cause?

Adware can slow down a computer, diminish web browsing experience, cause problems related to online privacy, browsing safety, or other issues.

What does adware do?

Adware generates revenue for its developer by feeding users with various advertisements. Software of this type can have additional functionalities allowing it to change web browser's settings, collect browsing-related or even sensitive information.

How do adware developers generate revenue?

Usually, adware is monetized by promoting various products, services, web pages. Most of the profit is generated via various affiliate programs.

Will Combo Cleaner remove BoostSign adware?

Yes, Combo Cleaner will scan your computer and eliminate BoostSign or other detected aware-type applications. It is recommended to use specialized software because it may not be enough to remove adware manually - some of its components may reside in the system even when it is deleted.

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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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Removal Instructions in other languages
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 BoostSign QR code
Scan this QR code to have an easy access removal guide of Ads by BoostSign on your mobile device.
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To use full-featured product, you have to purchase a license for Combo Cleaner. Limited seven days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.