How to remove PortalFlow

By viewing this article, visitors will gain knowledge on how to protect the Mac system from PortalFlow adware. To get rid of the mentioned threat, included on this page are Removal Tool, Steps for Manual Removal, and cleaning the Homepage and Search of compromised browser program.

Macintosh users will soon come across an adware referred to as PortalFlow. This recently released suspicious browser extension is currently being rolled out on the Internet and its developers appear to be using a couple of ways. One distribution channel where PortalFlow app can easily enter the Mac computer is through software bundles. However, many Mac users are not aware of the reality that most freeware packages are the primary carrier of the adware or potentially unwanted application (PUA) such as PortalFlow.

How PortalFlow enters the Mac computer?

It is a fact that PortalFlow handlers inject code to configure files for some free software. This renders the adware to be run at the same time as the Mac user installs the freeware. This was observed and the intrusion through this method was confirmed when the diagnostics were executed on earlier variants namely MapperProgress, SampleSkilled, and UnitAnalog.

Apart from freeware and shareware injection technique, PortalFlow also prevailed by malicious ads that dubious websites expose. Web users may come across such misleading advertisements offering the PortalFlow app when you visit sites that are engaged in illegal possession of copyrighted materials like pirated software, video, music, images, and so on. Deceptive pop-up ads often claim to be a software update that the web user needs to download in order to resolve issues identified by the operating system. If ever the web user is illicitly watching the streaming media, the pop-up normally makes pretend as “player” which is basically required to view the content.

Screenshot of PortalFlow App

PortalFlow is an unwanted app

The installation of the PortalFlow application is accomplished normally without the Mac user knowing the application perfectly. As stated above, the actors behind this PUA are employing different misleading techniques to lure web users to acquire and install PortalFlow while it is under the guise of valuable app. This could be the main reason why it was classed as unwanted application. The fact that it was made primarily to exhibit ads for revenue generation objective, Mac security professionals also placed PortalFlow app under the list of Adware. This calls for the immediate removal. For a full guide on removing the threat, see the next segment. Also included are viruses and malware removal tools for Mac that will effectively eliminate even hidden malicious objects associated with PortalFlow adware.

Procedures to Remove PortalFlow from Mac

This area contains comprehensive procedures to help you remove adware and potentially unwanted program from the computer.

Guide on this page are written in a manner that can be easily understand and execute by Mac users.

Quick Fix - Scan the Mac Computer with Combo Cleaner

Combo Cleaner is a trusted Mac utility application with complete antivirus and optimization features. It is useful in dealing with adware, malware, and PUP's. Moreover, it can get rid of adware like PortalFlow. You may need to purchase full version if you require to maximize its premium features.

1. Download the tool from the following page:

2. Double-click the downloaded file and proceed with the installation.

3. In the opened window, drag and drop the Combo Cleaner icon onto your Applications folder icon.

Install Combo Cleaner

4. Open your Launchpad and click on the Combo Cleaner icon.

5. Wait until antivirus downloads its latest virus definition updates and click on "Start Combo Scan" to start removing PortalFlow.

Combo Cleaner Scanner

6. Free features of Combo Cleaner include Disk Cleaner, Big Files finder, Duplicate files finder, and Uninstaller. To use antivirus and privacy scanner, users have to upgrade to a premium version.

Proceed with the rest of the removal steps if you are comfortable in manually removing malicious objects associated with the threat.

Step 1 : Delete PortalFlow from Mac Applications

1. Go to Finder.

2. On the menu, click Go and then, select Applications from the list to open Applications Folder.

3. Find PortalFlow or any unwanted program.

Delete Unwanted App

4. Drag PortalFlow to Trash Bin to delete the application from Mac.

5. Right-click on Trash icon and click on Empty Trash.

Step 2 : Remove Browser Extensions that belongs to PortalFlow

1. Locate the add-on or extension that is relevant to the adware. To do this, please follow the following depending on affected browser.

Safari - Choose Preferences from the Safari menu, then click the Extensions icon. This will open a window showing all installed extensions.

Chrome - Select Preferences from the Chrome menu, and then click the Extensions link found on the left pane.

Firefox - Choose Add-ons from the Menu. Look at both the Extensions and Plug-ins lists when it opens a new window.

2. Once you have located PortalFlow, click on Remove or Uninstall, to get rid of it.

3. Close the browser and proceed to the next steps.

Step 3 : Delete Malicious Files that have installed PortalFlow

1. Select and copy the string below to your Clipboard by pressing Command + C on your keyboard.

~/Library/LaunchAgents

2. Go to your Finder. From the menu bar please select Go > Go to Folder...

3. Press Command + V on your keyboard to paste the copied string. Press Return to go to the said folder.

Command + V

4. You will now see a folder named LaunchAgents. Take note of the following files inside the folder:

  • com.PortalFlow
  • unknown.download.plist
  • unknown.ltvbit.plist
  • unknown.update.plist

The term unknown is just a representation of the actual malware name. Attackers may masks the actual name with following:

- Portal Flow

If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing PortalFlow to be present on your Mac. Arranging all items to see the most latest ones may also help you identify recently installed unfamiliar files. Please press Option + Command + 4 on your keyboard to arrange the application list in chronological order.

Option+Command+4

Important: Take note of all the suspicious files as you may also delete the same item on another folder as we go on.

5. Drag all suspicious files that you may find to Trash.

6. Please restart the computer.

7. Open another folder using the same method as above. Copy and Paste the following string to easily locate the folder.

~/Library/Application Support

8. Look for any suspicious items that are similar to the ones in Step 4. Drag them to the Trash.

9. Repeat the process on the following non-hidden folders (without ~):

/Library/LaunchAgents
/Library/LaunchDaemons
/Library/Application Support

10. Lastly, go to your Finder and open the Applications Folder. Look for subfolders with the following names and drag them to Trash.

- Portal Flow

Optional : For locked files that cannot be removed, do the following:

1. Go to Launchpad, Utilities folder, open Activity Monitor.

2. Select the process you want to quit.

Force Quit Apps

3. Click on Force Quit button.

4. You may now delete or remove locked files that belongs to PortalFlow adware.

Step 4 : Double-check with MBAM Tool for Mac

1. Download Malwarebytes Anti-malware for Mac from this link:

2. Run Malwarebytes Anti-malware for Mac. It will check for updates and download if most recent version is available. This is necessary in finding recent malware threats including PortalFlow.

3. If it prompts to close all running web browser, please do so. Thus, we advise you to PRINT this guide for your reference before going offline.

4. Once it opens the user interface, please click on Scan button to start scanning your Mac computer.

MBAM for Mac

5. After the scan, Malwarebytes Anti-malware for Mac will display a list of identified threats, PortalFlow is surely part of it. Be sure to select all items in the list. Then, click Remove button to clean the computer.

Step 5 : Remove PortalFlow from Homepage and Search

Safari

- Open your Safari browser.
- Go to Safari Menu located on upper left hand corner, and then select Preferences.
- Under General tab, navigate to Default Search Engine section and select Google or any valid search engine.
- Next, be sure that "New Windows Open With" field is set to Homepage.
- Lastly, remove PortalFlow from the Homepage field. Replace it with your preferred URL to be set as your default homepage.

Google Chrome

- Open Chrome browser.
- Type the following on the address bar and press Enter on keyboard : chrome://settings/
- Look for 'On Startup' area.
- Select 'Open a specific page or set of pages'.
- Click on More Actions and select Edit.
- Enter the desired web address as your home page, replacing PortalFlow. Click Save.
- To set default search engine, go to Search Engine area.
- Click on 'Manage search engines...' button.
- Go to questionable Search Engine. Click on More Actions and Click 'Remove from list'.
- Go back to Search Engine area and choose valid entry from Search engine used in the address bar.

Mozilla Firefox

- Run Mozilla Firefox browser.
- Type the following on the address bar and hit Enter on keyboard : about:preferences
- On Startup area, select 'Show your home page' under 'When Firefox starts' field.
- Under Home Page field, type the desired URL to replace PortalFlow settings.
- To configure default search engine, select Search on left sidebar to display settings.
- Under Default Search Engine list, please select one.
- On the same page, you have an option to Remove unwanted search engine.

Optional : If unable to change browser settings, execute these steps:

Some user complains that there is no way to change browser settings because it is grayed out by PortalFlow. In such situation, it is important to check if there is unwanted profile. Please do the following:

1. Quit any running applications and launch System Preferences from your Dock.

2. Under System Preferences, click Profiles.

3. Select PortalFlow or any relevant profile from the left pane. See image below.

Remove Profile

4. At the bottom of this window, click minus [-] button to delete the account. Please refer to image above.

5. Close the Profiles window and open the affected browser to change all settings associated with PortalFlow.

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