Remove OptimalPromo – Mac Adware

By Chona Esjay | Posted on May 15, 2020 | Updated on June 27, 2020

Adware is a classification for computer threat that infects browser application and executes unnecessary changes to serve its illicit purpose. OptimalPromo app is one appropriate example of an adware but this one is specifically targeting internet browser application that functions on Mac OS environment. OptimalPromo installation causes the browser to operate differently from previous state because the execution of changes by the adware uses extensive system resources. As such, internet software may freeze constantly that eventually collapses its operation.

Infection Technique of OptimalPromo

Software bundles are common programs that legitimate sites are offering to their visitors. These sets of programs are packed into one executable file so that users have an option to install extra programs if they need to. List of additional programs aside from the host application are disclose to computer users during the installation process. However, software bundles where OptimalPromo is included do not divulge the complete information. In fact, unnecessary apps like OptimalPromo gets onboard even without the permission from Mac users. Adware makers are exploiting the software bundling scheme to penetrate Mac computer secretly using appealing freeware like games, utilities, productivity tools, and fake software updates. Aside from OptimalPromo, these malicious software packages may install other variants of adware from the same family including StockCommon, BufferKey, BoostSelect, and so on.

Effects of OptimalPromo Adware

Adware is a short code for ad-supported software. That alone gives us an idea that OptimalPromo was made with the main objective of generating online profit by exhibiting excessive ads on the browser. Keep in mind that ads by OptimalPromo are not the common commercial thing that regular websites are presenting. Adware makers do commonly engages in black market type of ad campaign and therefore OptimalPromo serves the kind of ads that pays higher but in the end, it can cause harm to internet program and Mac system in general.

OptimalPromo App

There is also an observation that OptimalPromo adware possess a spyware-like trait. It can record various sensitive information stored on internet browser program. Data like search keywords, favorite website, username, passwords, and IP address are items it aims to pursue.

Procedures to Remove OptimalPromo 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.

Step 1 : Quick Fix - Scan the System 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 OptimalPromo. You may need to purchase full version if you require to maximize its premium features.

1. Download the tool from the following page:

Click here to Download Combo Cleaner

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.

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

5. Wait until antivirus downloads it's latest virus definition updates and click on "Start Combo Scan" to start removing OptimalPromo.

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 2 : Delete OptimalPromo 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 OptimalPromo or any unwanted program.

Delete Unwnated App

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

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

Step 3 : Remove Browser Extensions that belongs to OptimalPromo

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 Plugins lists when it opens a new window.

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

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

Step 4 : Delete Malicious Files that have installed OptimalPromo

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.OptimalPromo
  • 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:

- CustomSuccess, UpgradeStart

If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing OptimalPromo 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.

- CustomSuccess, UpgradeStart

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 Locked Files

3. Click on Force Quit button.

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

Step 5 : Double-check with MBAM Tool for Mac

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

Click here to download MBAM for Mac

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 OptimalPromo.

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 - Scan

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

Step 6 : Remove OptimalPromo 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 OptimalPromo 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 OptimalPromo. 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 OptimalPromo 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 OptimalPromo. 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 OptimalPromo 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 OptimalPromo.

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