PDFPros browser hijackers are malicious programs that cause modifications to main web browser without permission from web users. Normally, it penetrates the computer and internet software via malicious app bundles that several free software-downloading sites are serving. Program package from these suspicious providers may have extra add-ons that can possibly be a browser hijacker, adware, or a potentially unwanted program (PUP).
PDFPros is type of browser hijacker, which authors are endorsing as an app that freely and easily converts files to PDF format. PDFPros also claims to enhance online browsing and search experience of users through own search tool at Portal.pdfpros.com. Its function may look very useful and legitimate but it is considered as one of Potentially Unwanted Applications (PUA). PDFPros developers markets this app through deceptive marketing plan called “Bundling” where they include this malicious software along with other programs under a single installation without being detected by web user.
PDFPros main targets are to spy on web browsers and tracks internet browsing activity. It also creates intrusive ads such as campaign banners, pop-up ads, and redirects. These advertisements by PDFPros can have the possibility to lead web users into high-risk adware or malware infections. Furthermore, PUA like PDFPros consistently monitors main browser activities such as IP address, visited URLs, viewed cookies, search queries, and any other details either personal or non-personal data.
The presence of PDFPros on computer system can result into serious privacy and security issues of web users. It is very advisable to remove it from the system to prevent further damage and infections to internet browser functions. In most cases, PDFPros developers spread this threat through various freeware and shareware. Online users can avoid this type of unwanted program by carefully inspecting every step of the download and installation process. Using “advanced” or “custom” setup option will reveal any software along with other current installation so computer users can opt-out for unwanted applications.
Procedures to Remove PDFPros from Mac
This section contains comprehensive guide to help you remove malicious browser hijacker from internet application.
Procedures 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 malicious browser hijacker like PDFPros. 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 it's latest virus definition updates and click on "Start Combo Scan" to start removing PDFPros.
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 : Remove Browser Extensions that belongs to PDFPros
1. Locate the add-on or extension that is relevant to the hijacker. 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 PDFPros, 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 PDFPros
1. Select and copy the string below to your Clipboard by pressing Command + C on your keyboard.
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:
The term unknown is just a representation of the actual malware name. It is normally an unfamiliar file name such as the following:
If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing PDFPros 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.
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 ~):
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 PDFPros homepage hijacker.
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 PDFPros.
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, PDFPros 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 PDFPros from Homepage and Search
- 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 PDFPros from the Homepage field. Replace it with your preferred URL to be set as your default homepage.
- 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 PDFPros. 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.
- 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 PDFPros 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 PDFPros. 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 PDFPros 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 PDFPros.
Step 6 : Delete PDFPros Login Items
Some browser hijacker may also install login item into compromised account under System Preferences. This object automatically runs PDFPros during user log in.
1. Go to Apple menu and choose System Preferences.
2. Select Users & Groups from the preferences window.
3. You may need to Unlock this area in order to make changes. Click on the Lock icon on lower left corner of the window.
4. Next, select user account that runs PDFPros.
5. Click on Login Items tab.
6. Select PDFPros or any suspicious entries from the list and click on the minus [-] button and confirm your actions. Please see image below for reference.