Severity scale:  
  (20/100)

Remove ProntoApp (Removal Instructions) - updated Nov 2019

removal by Julie Splinters - - | Type: Adware

ProntoApp is a potentially unwanted application designed to perform malicious activities on macOS computers

ProntoApp
ProntoApp is an adware app that is installed unintentionally via third-party sites

ProntoApp is an adware app published by an unknown developer and is designed for all versions of Mac operating systems. The potentially unwanted program[1] might be installed along with freeware/shareware applications from third-party sites, or when users get tricked by an attractive online app, as well as a fake Flash update. Due to these reasons, users are rarely aware that ProntoApp got installed on their systems – at least, not straight away.

As soon as ProntoApp establishes on the macOS, it immediately performs several changes to Google Chrome, Safari or another browser: users will notice that their homepage has been changed to Bing, Smart Search, or similar, and they are forced to browse via a hijacked search engine (in most of the cases, ProntoApp extension is installed). Due to this, the search results victims see are not organic, although this allows the developers to monetize on clicks made. Besides, the adware will also insert scams, fake updates, pop-ups, deals, banners, offers, coupons, and other intrusive and possibly malicious content when browsing the internet.

However, typical hijacking activities are not the main problem with ProntoApp, as it also engages in numerous actions that are more related to malware rather than adware – it can read sensitive information users insert on all sites (such as credit card details) and is also equipped with persistence mechanisms that usually prevent an easy ProntoApp removal from the infected machines.

Name ProntoApp
Type Adware, Mac virus, PUP
Infection means Users typically get infected with the PUP during the installation of third-party apps like File Converter. This technique is referred to as software bundling – optional components are deliberately hidden from sight and are installed along with the desired app
Symptoms Web browser settings changed; a new extension attached to all web browsers; increased number of ads during web browsing sessions; sponsored links in the search results; difficulties in removing unwanted applications along with ProntoApp
Dangers The unwanted application can lead users to insecure sites where they might download and install other PUPs or even malware; scam sites might trick users into paying fake tech support fees; personal data might be collected by unwanted parties or even cybercriminals on insecure sites
Termination  Refer to our manual elimination instructions below. Also, a scan with reputable anti-malware is highly recommended
Recovery & optimization In case your Mac is struggling (lagging, crashing, showing errors) after the infection, you can use Reimage Reimage Cleaner as a remedy for these symptoms and make it run well again

Besides modifying web browser settings, ProntoApp adware also attaches an extension to it. This helps the app to gather various information about users for targeted advertisement[2] campaigns. The collected data might include:

  • IP address;
  • Version of the OS and the installed applications;
  • Internet Server Provider;
  • Websites visited;
  • Links and ads clicked;
  • Bookmarks added, etc.

ProntoApp application is not the only one that has been infecting Mac users in recent months. It is highly likely that it is a work of the same developer as ProductEvent, CoordinatorPlus, IdeaShared, and many others. All of the programs use the same magnifying glass icon with a green background and are not signed by any developer. In other words, ProntoApp is a re-skinned version of the same application, just named differently – this is a common trait of shady programs that are spread around the web by using deceptive means in order to gain quick revenue from infected users.

In fact, ProntoApp is so intrusive and persistent, that many users attributed it “ProntoApp virus” or “ProntoApp malware” term. While it is not entirely true (this app seems to be an aggressive type of adware), users have every right to be concerned, as unwanted changes to the installed web browsers, redirects, pop-up ads, slowdown of macOS, and other symptoms are something that nobody should deal with.

ProntoApp  adware
ProntoApp is a potentially unwanted application that displays unwanted ads and redirects to suspicious sites

Besides showing ads to infected users, ProntoApp is also dangerous due to its redirection tendencies. Adware is known to sometimes direct users to scam or fake update sites, where they are prompted to download other potentially unwanted programs or call fake technicians for an alleged fix – a few examples of popular scams include “Your system is infected with 3 viruses,” “Immediate action required,” and many others.

You should remove ProntoApp with the help of our instructions below. If you encounter difficulties during the process, you should also scan your Mac with anti-virus software. Additionally, you should also reset your browsers and employ Reimage Reimage Cleaner if you want to make sure that your computer is in its best shape after the infection.

Be careful when installing applications from third-party sites 

There is a reason why many security experts[3] advise users staying away from third-party sites when it comes to new software installs. Apple uses sophisticated scanners and other checks before allowing an application into the App Store (although even the tech giant might sometimes fail to detect malicious apps, as 17 of them were recently removed after security firm detected shady practices of adware). Unfortunately, third-parties do not have the resources and the need to perform such broad checks before apps are placed on the site.

When you try to install an app from a third-party site, GateKeeper will detect the unofficial origin and ask your credentials to allow the installation – this stops many unwanted apps from entering without permission. The problem is that users are tricked into agreeing to install those applications and enter the credentials nonetheless.

When installing apps from third-parties, make sure you take precautionary measures. Most importantly, you should never rush the process, opt for Advanced/Custom settings, check each of the installation steps carefully, and decline all promotional offers on the way.

ProntoApp  applicaiton
ProntoApp might install itself as a standalone app, although there is a high chance that a browser extension is added as well

Uninstall ProntoApp along with all other PUPs that might have entered the system without your approval

When it comes to ProntoApp adware, it is one of those more aggressive and deceptive types that nobody knows the origins of. If anything, it reminds more of malware that seeks to monetize on users' ruined web browsing experiences – it also puts their safety at risk. It is also not surprising, considering the nature of the app, that many might be struggling when trying to perform ProntoApp removal.

We suggest you first try to remove ProntoApp manually by finding all its components on macOS and deleting them. Here's what you should look for:

  • ~/Library/LaunchAgents/pronto.notification.plist
  • ~/Library/LaunchAgents/pronto.update.plist
  • ~/Library/Application Support/ProntoApp/ProntoApp.app/Contents/MacOS/ProntoApp

The problem is, however, that the ProntoApp virus often comes along with other unwanted software, which might be difficult to find. For that reason, we suggest you scan your machine with anti-malware software to make sure all the suspicious elements are uninstalled. Additionally, we highly advise you reset Google Chrome, Safari, and Mozilla Firefox in order to prevent the unwanted activities of coming back.

You may remove virus damage with a help of Reimage Reimage Cleaner . SpyHunter 5Combo Cleaner and Malwarebytes are recommended to detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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What to do if failed?
If you failed to remove virus damage using Reimage Reimage Cleaner, submit a question to our support team and provide as much details as possible.
Reimage Reimage Cleaner has a free limited scanner. Reimage Reimage Cleaner offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage Cleaner, try running Combo Cleaner.

To remove ProntoApp, follow these steps:

Uninstall ProntoApp from Mac OS X system

To get rid of ProntoApp on macOS, you should find it and put it to Trash:

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for ProntoApp or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'

Erase ProntoApp from Mozilla Firefox (FF)

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select ProntoApp and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete ProntoApp removal. Click on 'Reset Firefox' button for a couple of times

Eliminate ProntoApp from Google Chrome

If you do not reset Chrome, you might see ads and redirects due to the PUP again:

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select ProntoApp and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete ProntoApp removal. Click on 'Reset' button to complete your removal

Delete ProntoApp from Safari

If you are unable to remove the unwanted extension from Safari, reset it as explained below:

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for ProntoApp or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete ProntoApp removal process. Select all options and click on 'Reset' button

About the author

Julie Splinters
Julie Splinters - Malware removal specialist

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