FacebookTwitterLinkedIn

How to uninstall HelperService adware from your operating system?

Also Known As: Ads by HelperService
Type: Mac Virus
Distribution: Low
Damage level: Medium

How to remove HelperService adware from Mac?

What is HelperService?

HelperService is the name of an untrustworthy application, which is classified as adware. Additionally, this piece of software has browser hijacker qualities. Following successful installation, HelperService runs intrusive advertisement campaigns (i.e. delivers various ads) and makes modifications to browser settings - in order to promote fake search engines. Due to the dubious methods used to distribute this app, it is also deemed to be a PUA (Potentially Unwanted Application). Most PUAs (regardless of type) spy on users' browsing activity. HelperService has been observed being proliferated through DLVPlayer's installer.

HelperService adware detections on VirusTotal

Adware enables the placement of pop-ups, banners, coupons, surveys, full-page and other intrusive adverts - typically, on any visited website. The delivered ads seriously diminish the browsing experience, by slowing down the browsing speed and limiting page content visibility. Furthermore, once clicked on, intrusive advertisements redirect to unreliable/malicious sites and some can even stealthily download/install software (e.g. PUAs).

Browser hijackers assign the addresses of fake web searchers as browsers' homepage, default search engine and new tab/window URLs. Therefore, with such a piece of software installed: every new browser tab/window opened and search query typed into the URL bar - redirect to the promoted address. Illegitimate search engines are rarely able to provide search results, so they redirect (or cause redirection chains leading) to Yahoo, Bing, Google and other genuine ones. Recovering a hijacked browser is impossible without removing the software affecting it. Since browser hijackers can undo any changes users attempt to make to their browsers and/or restrict/deny access to the browser settings outright.

PUAs usually have data tracking abilities. They monitor browsing activity (visited URLs, viewed pages, searched queries, etc.) and gather personal information extracted from it (IP addresses, geolocations and other details). The collected data is then monetized by being shared with and/or sold to third parties (potentially, cyber criminals). In summary, presence of unwanted apps on devices can result in system infections, serious privacy issues, financial losses and even identity theft. To protect device integrity and user safety, all suspicious applications and browser extensions/plug-ins - must be eliminated immediately upon detection.

Threat Summary:
Name Ads by HelperService
Threat Type Adware, Mac malware, Mac virus
Detection Names Avast (MacOS:AdAgent-AB [Adw]), Fortinet (Adware/Agent!OSX), ESET-NOD32 (OSX/Agent.BJ), Kaspersky (Not-a-virus:HEUR:AdWare.OSX.Agent.l), 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 three days free trial available.

ManagerAnalogSkillExplorerActiveToken and ExtendedMode are some examples of other adware-type applications. They seldom appear suspect, this software tends to look legitimate and useful. However, their advertised functionalities are rarely operational. In fact, this applies to practically all PUAs. The sole purpose of unwanted apps is to generate profit for the developers; hence, functionality and user safety are irrelevant. PUAs are designed to deliver intrusive advert campaigns, hijack browser, cause redirects and/or collect private data.

How did HelperService install on my computer?

Select PUAs have "official" download pages. However, they are more commonly downloaded/installed together with other software. This false marketing technique of packing regular programs with unwanted or malicious additions - is called "bundling". Rushed download/installation processes (e.g. ignored terms, used "Quick/Express" settings, etc.) increase the risk of inadvertently allowing bundled content into the system. Intrusive advertisements proliferate PUAs as well. Upon being clicked, the ads can execute scripts to download/install these applications without user permission.

How to avoid installation of potentially unwanted applications?

It is highly recommended to research software products prior to download/installation and/or purchase. All downloads should be done only from official and verified sources. Unofficial and free file-hosting sites, Peer-to-Peer sharing networks (BitTorrent, eMule, Gnutella, etc.) and other third party downloaders - are considered to be untrustworthy, due to often offering harmful and/or bundled content. When downloading/installing, it is advised to read terms, study all available options, use the "Custom/Advanced" settings and opt-out from supplementary apps, tools, functions, etc. Intrusive adverts appear legitimate, however they redirect to various questionable websites (e.g. gambling, pornography, adult-dating and many others). In case of encounters with ads and/or redirects of this kind, the system must be checked and all dubious applications and browser extensions/plug-ins detected - removed from it without delay. If your computer is already infected with HelperService, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

DLVPlayer adware's installation setup that promotes HelperService:

DLVPlayer installer distributing HelperService

Files related to the HelperService adware that need to be removed:

  • ~/Library/LaunchAgents/com.helper.service.plist
  • ~/Library/Application Support/HelperService/HelperService

IMPORTANT NOTE! In some cases malicious applications like OriginalModule alter system proxy settings, thereby causing unwanted redirects to a variety of questionable websites.

The redirects are likely to remain even after removing the application itself. Thus, you'll have to restore them manually.

Step 1: Click on the gear icon in the Dock to navigate to the system settings. If the icon is not present in the Dock, you can find it in the Launchpad.

Changing proxy settings - navigate to the system settings

Step 2: Navigate to the Network settings.

Changing proxy settings - navigate to the network settings

Step 3: Select the connected network and click "Advanced...".

Changing proxy settings - select the connected network and click Advanced...

Step 4: Click on the "Proxies" tab and untick all the protocols. You should also set the settings of each protocol to default - "*.local, 169.254/16".

Changing proxy settings - untick all the options and set their settings to default

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 three days free trial available.

Quick menu:

Video showing how to remove HelperService adware using Combo Cleaner:

HelperService adware removal:

Remove HelperService-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 helperservice 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 HelperService removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove ads by helperservice 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 helperservice 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 helperservice 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.

Click to post a comment

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.

Our malware removal guides are free. However, if you want to support us you can send us a donation.

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 HelperService 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 Ads by HelperService on your mobile device.
We Recommend:

Get rid of Mac malware infections today:

▼ REMOVE IT NOW
Download Combo Cleaner for Mac

Platform: macOS

Editors' Rating for Combo Cleaner:
Editors ratingOutstanding!

[Back to Top]

To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.