One example of adware for Mac that is aiming to control internet software like Safari, Google Chrome, or Firefox is called ParameterQuest. It can penetrate the prudent operating system via misleading software installers. Developers of ParameterQuest app spread the code using different free software and gain access on Mac computers through the installation process.
Like other renditions as LogicalBrowser, OperationValue, and BeyondLaunch, ParameterQuest app was made primarily to gain revenue by displaying different types of advertisements on the browser. Although, the exhibition of ads is common to most websites, Mac security experts are skeptical of the ads that are originating from ParameterQuest. According to them, the makers of adware have different sources of ad inventory and most of it is sourced from an underground channel. It means that ads by ParameterQuest is enclosed with malicious contents like links that may divert the browser pages to suspicious websites.
ParameterQuest App Installation
Makers of ParameterQuest are exploiting different freeware as a means to spread the malicious code. They commonly embedded the adware to free software as games, media player, file converter, internet speed booster, creativity apps, and so on. During installation, Mac user may never distinguish that ParameterQuest is part of the installation because its setup portion is completely hidden from sights. The freeware bundle was designed to literally run a discrete installation of ParameterQuest app and because it adopts the same privilege assigned to the host software, the adware completely bypasses the authority of Mac user.
There are reports that Mac user was able to obtain ParameterQuest after installing a software update from random websites. Technically, if the pop-up did not originate from the official websites, it could be a bogus software update masking as legitimate one to mislead online users. Thus, you must download software updates only from official websites to avoid the fake ones that meant to install ParameterQuest adware.
Our conclusion
Knowing that the threat is harmful enough to cause additional adware or malware infection, immediate removal is suggested. Comprehensive guide to getting rid of ParameterQuest app is posted below along with legitimate virus and malware scanner. Run a thorough scan to check for any presence of malicious files that are associated with ParameterQuest.
Procedures to Remove ParameterQuest 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 ParameterQuest. 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.
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 ParameterQuest.
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 ParameterQuest 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 ParameterQuest or any unwanted program or suspicious item. It could be in disguise as a different file.
4. Drag ParameterQuest 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 ParameterQuest
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 ParameterQuest, 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 ParameterQuest
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.
4. You will now see a folder named LaunchAgents. Take note of the following files inside the folder:
- com.ParameterQuest
- 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:
- Parameter Quest App
If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing ParameterQuest 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.
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.
- Parameter Quest App
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.
3. Click on Force Quit button.
4. You may now delete or remove locked files that belongs to ParameterQuest 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 ParameterQuest.
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.
5. After the scan, Malwarebytes Anti-malware for Mac will display a list of identified threats, ParameterQuest 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 ParameterQuest 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 ParameterQuest 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 ParameterQuest. 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 ParameterQuest 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 ParameterQuest. 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 ParameterQuest or any relevant profile from the left pane. See image below.
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 ParameterQuest.
