PDFSearchHQ is a browser hijacker that affects main browser settings without asking for permission. Once added to the browser, this program leaves you no other choice but to use its deceptive services. The sooner you remove this app, the better as it may be spying on your online activities. Such apps are known to attempt to monetize their presence on affected systems by delivering lots of annoying ads. A security concern is that the program may display ads that link to poorly secured or hacked websites that can endanger the overall system security.
Security experts recommend the removal of PDFSearchHQ from the affected browser and system.
PDFSearchHQ (pdfsearchhq.com) also known as PUP.PDFSearchHQ
Browser Hijacker, PUP
A questionable browser extension that hijacks the homepage, new tab page and default search engine in Chrome browser. All modifications happen without your knowledge.
The homepage, new tab page and search enigne in preferred web browser are set to dislay a hoax search engine pushed by PDFSearchHQ hijacker. Browser slowdowns occur due to increased number of online ads.
PDFSearchHQ is a potentially undesired program that many anti-malware programs flag as a browser hijacker. Its odd behavior is related to unwanted changes in main browsing preferences. Unfortunately, as a typical potentially unwanted program, PDFSearchHQ is likely to apply changes to installed browsers without notifying you.
Once started on a target system, the hijacker replaces the start pages, new tab pages, and default search engines of target web browsers with a hoax search engine. Its related search engine is hosted on the domain portal.pdfsearchhq.com.
No matter which of the installed browsers is affected by the hijacker (Safari, Chrome, Firefox, Internet Explorer, Microsoft Edge, or Opera) you should refrain from using its services. The program may try to present you with different types of online ads including search results that link to corrupted web pages that download and activate malicious code.
Beware that this bogus application may also activate tracking technologies in order to obtain various details and define your interests.
How you might have installed such an undesired app is via the installer another supposedly useful app. Sometimes extra apps (PUPs) are hidden in apps’ installers to trick people into installing them inadvertently. A good way to prevent your system from being affected by undesired apps is to select the Advanced/Custom configuration option. There you could find more details about all installer’s components and eventually opt-out of the installation of those you don’t want.
For the sake of your PC security, it’s best to consider the complete removal of PDFSearchHQ from the affected browser and system.
Remove PDFSearchHQ Hijacker
In order to remove the PDFSearchHQ browser hijacker along with all associated files, you should complete several removal steps in precise order. The guide below presents you with a manual and an automatic removal approach. In order to fully get rid of files installed by undesired programs and strengthen macOS security, we recommend that you combine the steps. The manual PDFSearchHQ removal might be quite a complicated process that requires advanced computer skills. If you don’t feel comfortable with the manual steps, navigate to the automatic part of the guide.
In case you have further questions or need additional help with the removal process, don’t hesitate to leave us a comment.
Highly motivated writer with 5+ years of experience writing for ransomware, malware, adware, PUPs, and other cybersecurity-related issues. As a writer, I strive to create content that is based on thorough technical research. I find joy in the process of creating articles that are easy to understand, informative, and useful. Follow me on Twitter (@IRGergana) for the latest in the field of computer, mobile, and online security.
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Mac OS X
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How to Remove PDFSearchHQ from Windows.
Step 1: Scan for PDFSearchHQ with SpyHunter Anti-Malware Tool
1.1 Click on the "Download" button to proceed to SpyHunter's download page.
1.2 After you have installed SpyHunter, wait for it to update automatically.
1.3 After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.
1.4 After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.
If any threats have been removed, it is highly recommended to restart your PC.
Step 2: Boot Your PC In Safe Mode
2.1 Hold Windows key + R
2.2 The "Run" Window will appear. In it, type "msconfig" and click OK.
2.3 Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.
2.4 When prompted, click on "Restart" to go into Safe Mode.
2.5 You can recognise Safe Mode by the words written on the corners of your screen.
Step 3: Uninstall PDFSearchHQ and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs.No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it.
3.1 Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.
3.2 In the field type in "appwiz.cpl" and press ENTER.
3.3 This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.
Step 4: Clean Any registries, Created by PDFSearchHQ on Your PC.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by PDFSearchHQ there. This can happen by following the steps underneath:
4.1 Open the Run Window again, type "regedit" and click OK.
4.2 When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.
4.3 You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.
Video Removal Guide for PDFSearchHQ (Windows).
Get rid of PDFSearchHQ from Mac OS X.
Step 1: Uninstall PDFSearchHQ and remove related files and objects
1.1 Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
1.2 Find Activity Monitor and double-click it:
1.3 In the Activity Monitor look for any suspicious processes, belonging or related to PDFSearchHQ:
Tip: To quit a process completely, choose the “Force Quit” option.
1.4 Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.
1.5 In the Applications menu, look for any suspicious app or an app with a name, similar or identical to PDFSearchHQ. If you find it, right-click on the app and select “Move to Trash”.
1.6 Select Accounts, after which click on the Login Items preference.
Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to PDFSearchHQ. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.
1.7 Remove any left-over files that might be related to this threat manually by following the sub-steps below:
Go to Finder.
In the search bar type the name of the app that you want to remove.
Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove PDFSearchHQ via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!
1: Click on "Go" and Then "Go to Folder" as shown underneath:
2: Type in "/Library/LauchAgents/" and click Ok:
3: Delete all of the virus files that have similar or the same name as PDFSearchHQ. If you believe there is no such file, do not delete anything.
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove PDFSearchHQ files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as PDFSearchHQ, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Click the button below below to download SpyHunter for Mac and scan for PDFSearchHQ:
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Erase PDFSearchHQ from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window:
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Uninstall PDFSearchHQ from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Remove PDFSearchHQ from Safari
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the PDFSearchHQ will be removed.
How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.
Start Safari and then click on the gear leaver icon.
Click the Reset Safari button and you will reset the browser.
Eliminate PDFSearchHQ from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.
Remove Push Notifications from Your Browsers
Turn Off Push Notifications from Google Chrome
To disable any Push Notices from Google Chrome browser, please follow the steps below:
Step 1: Go to Settings in Chrome.
Step 2: In Settings, select “Advanced Settings”:
Step 3: Click “Content Settings”:
Step 4: Open “Notifications”:
Step 5: Click the three dots and choose Block, Edit or Remove options:
Remove Push Notifications on Firefox
Step 1: Go to Firefox Options.
Step 2: Go to “Settings”, type “notifications” in the search bar and click "Settings":
Step 3: Click “Remove” on any site you wish notifications gone and click “Save Changes”
Stop Push Notifications on Opera
Step 1: In Opera, press ALT+P to go to Settings.
Step 2: In Setting search, type “Content” to go to Content Settings.
Step 3: Open Notifications:
Step 4: Do the same as you did with Google Chrome (explained below):
Eliminate Push Notifications on Safari
Step 1: Open Safari Preferences.
Step 2: Choose the domain from where you like push pop-ups gone and change to "Deny" from "Allow".
It may slow your computer down significantly and display advertisements. The main idea is for your information to likely get stolen or more ads to appear on your device.
The creators of such unwanted apps work with pay-per-click schemes to get your computer to visit risky or different types of websites that may generate them funds. This is why they do not even care what types of websites show up on the ads. This makes their unwanted software indirectly risky for your OS.
What Are the Symptoms of PDFSearchHQ?
There are several symptoms to look for when this particular threat and also unwanted apps in general are active:
Symptom #1: Your computer may become slow and have poor performance in general.
Symptom #2: You have toolbars, add-ons or extensions on your web browsers that you don't remember adding.
Symptom #3: You see all types of ads, like ad-supported search results, pop-ups and redirects to randomly appear.
Symptom #4: You see installed apps on your Mac running automatically and you do not remember installing them.
Symptom #5: You see suspicious processes running in your Task Manager.
If you see one or more of those symptoms, then security experts recommend that you check your computer for viruses.
What Types of Unwanted Programs Are There?
According to most malware researchers and cyber-security experts, the threats that can currently affect your Mac can be the following types:
Rogue Antivirus programs.
What to Do If I Have a "virus" like PDFSearchHQ?
With few simple actions. First and foremost, it is imperative that you follow these steps:
Step 1:Find a safe computer and connect it to another network, not the one that your Mac was infected in.
Step 2:Change all of your passwords, starting from your email passwords.
Step 3: Enable two-factor authentication for protection of your important accounts.
Step 4: Call your bank to change your credit card details (secret code, etc.) if you have saved your credit card for online shopping or have done online activities with your card.
Step 5: Make sure to call your ISP (Internet provider or carrier) and ask them to change your IP address.
Step 6: Change your Wi-Fi password.
Step 7:(Optional): Make sure to scan all of the devices connected to your network for viruses and repeat these steps for them if they are affected.
Step 8:Install anti-malware software with real-time protection on every device you have.
Step 9: Try not to download software from sites you know nothing about and stay away from low-reputation websites in general.
If you follow these recommendations, your network and all devices will become significantly more secure against any threats or information invasive software and be virus free and protected in the future too.
How Does PDFSearchHQ Work?
Once installed, PDFSearchHQ can collect data about your web browsing habits, such as the websites you visit and the search terms you use. This data is then used to target you with ads or to sell your information to third parties.
PDFSearchHQ can also download other malicious software onto your computer, such as viruses and spyware, which can be used to steal your personal information and show risky ads, that may redirect to virus sites or scams.
Is PDFSearchHQ Malware?
The truth is that PUPs (adware, browser hijackers) are not viruses, but may be just as dangerous since they may show you and redirect you to malware websites and scam pages.
Many security experts classify potentially unwanted programs as malware. This is because of the unwanted effects that PUPs can cause, such as displaying intrusive ads and collecting user data without the user’s knowledge or consent.
About the PDFSearchHQ Research
The content we publish on SensorsTechForum.com, this PDFSearchHQ how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific, adware-related problem, and restore your browser and computer system.
How did we conduct the research on PDFSearchHQ?
Please note that our research is based on independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware, adware, and browser hijacker definitions.
Furthermore, the research behind the PDFSearchHQ threat is backed with VirusTotal.
To better understand this online threat, please refer to the following articles which provide knowledgeable details.