PUA:Win32/Adsunwan – Virus Removal Guide

PUA:Win32/Adsunwan is a generic detection of malicious code that may be installed on the computer by another threat. It may be a browser hijacker, pop-up ads, toolbar, or undesirable browser add-on or extension. Usually, PUA:Win32/Adsunwan is not as dangerous as the virus, but it can be so annoying once installed on the computer.

We highly recommend running a computer antivirus scan the moment that PUA:Win32/Adsunwan is detected. It may not be considered a hazardous virus, but ignoring its presence could lead to an infection. As we noticed, one payload of this threat is to produce pop-up ads that lure the users to download a program, and that could be a malicious one that can cause virus infection.

Illustration for PUA:Win32/Adsunwan

How does it infect the computer?

PUA:Win32/Adsunwan can invade computer and internet browser applications such as Google Chrome, Mozilla Firefox, and Microsoft Edge. The threat usually penetrates the computer as a file that is embedded in questionable freeware or shareware. In other cases, PUA:Win32/Adsunwan is pretending to be a valid software update that web users can encounter when visiting malicious websites.

How does this malware operate?

PUA:Win32/Adsunwan was developed to identify files that exhibit suspicious behaviors, indicating the presence of potentially unwanted programs (PUP). This detection can also identify programs that are consistent with the behavior of unknown advertising programs.

Unlike computer viruses, PUA:Win32/Adsunwan is just a piece of software that produces ads and commits page hijacking on the affected computer. It frequently spreads with a third-party program that users have downloaded voluntarily. Most people are aware of the program they install but are still caught off guard by the other codes that come with it. This software bundling technique does not inform the users that aside from the “main” software they downloaded, a bunch of other programs will be installed secretly.

You must delete PUA:Win32/Adsunwan from the computer using efficient security tools like malware and antivirus programs. The procedures on this page can help you easily eliminate the threat when they are followed accordingly.

Symptoms

An antivirus application could detect PUA:Win32/Adsunwan as soon as it enters the computer. Apart from this sign, users may also notice browser hijacking and redirects. Not to mention that the presence of this malware could trigger the browser to display relentless pop-up ads.

PUA:Win32/Adsunwan is also detected as:
Avira HEUR/AGEN.1364750
BitDefender Trojan.GenericKD.37492465
ESET-NOD32 Variant Of Win32/TrojanDownloader.Adload.NUW
Fortinet W32/Adload.NUW!tr.dldr
Gridinsoft Trojan.Win32.Downloader.oa!s1
Kaspersky Not-a-virus:HEUR:AdWare.Win32.Guanbi.gen
Kingsoft Win32.Troj.Generic.v
Malwarebytes Generic.Malware.AI.DDS
McAfee Ti!ACC5D42818E5
Sophos Troj/Adload-PE
TrendMicro TROJ_GEN.F0CBC0UIH21
Zillya Downloader.Adload.Win32.10

How to Remove PUA:Win32/Adsunwan

To totally remove PUA:Win32/Adsunwan from the computer and get rid of relevant viruses and trojans, please execute the procedures as stated on this page. Make sure that you have completely scanned the system with the suggested malware removal tools and virus scanners.

Instant Removal : Scan the computer with antivirus program

Combo Cleaner is a trusted computer security and optimization tool equipped with a powerful virus and malware detection engine. This program can get rid of computer virus like PUA:Win32/Adsunwan through this procedure.

1. Download the application from the following page:

2. Save the file to your preferred location.

3. Double-click the downloaded file CCSetup.exe and install with the default settings.

4. At the end of the setup process, click Finish to run Combo Cleaner.

5. The tool will update the database file; please wait for this process to complete.

6. To begin checking for threats like PUA:Win32/Adsunwan, click on the Start Scan button. Wait for this scan to finish.

Screenshot of Combo Cleaner PC

7. At the end of the scan process, click on Remove all threats to delete PUA:Win32/Adsunwan, including all harmful objects from the computer.

To fully optimize the features of antivirus and privacy scanners, users may have to upgrade to the premium version.

Please continue with the succeeding removal procedures if you are comfortable manually getting rid of the computer virus and malicious items linked to it.

Manual Removal : Steps to get rid of PUA:Win32/Adsunwan

The steps below will guide you to manually remove PUA:Win32/Adsunwan without having to purchase a recommended virus scanner. We have tested the procedures; hence, the attackers may make modifications overtime. As a result, terms, names, and images in the guide may differ from what users are seeing recently.

The procedure may require you to close the browser or restart the computer; therefore, we are suggesting to Boookmark or Print this page. You must be logged in to Windows with an Administrator account to be able to execute some of the tasks. Check here to know if you are currently using an account with Administrative rights. 

Step 1 : Start Windows in Safe Mode With Networking

The method of running Windows in Safe Mode before deleting files, ending system processes, and virus scanning is effective in getting rid of PUA:Win32/Adsunwan. This routine can prevent most viruses and malware from loading, making it easier to detect and remove them.

1. On the Windows Search bar, please type msconfig.

Screenshot of Win 11 Search

2. Select and open System Configutation on the list of found results.

3. Once you are in the System Configuration window, go to the Boot tab.

Screenshot of Msconfig Win 11

4. Under the Boot Options area, please check Safe Boot so that it starts in Safe Mode after restarting.

5. Next, select Network. This will allow Windows to boot in Safe Mode with Networking.

6. Lastly, click on Apply and OK to save the changes.

7. Please restart Windows. The system should run in Safe Mode after the reboot.

Do not forget to restore the normal boot process of Windows after this process. Simply repeat the method above, and this time, uncheck the Safe Boot option to run Windows normally.

Step 2 : Run Sophos Home Virus Scanner

To remove PUA:Win32/Adsunwan hidden files, scanning the computer with this powerful virus and malware removal tool is recommended. This scanner does not just uncover known threats like viruses or malware; it is also effective in discovering harmful files associated to PUA:Win32/Adsunwan.

1. Please click on the link below to download the program.

2. After downloading, locate the file SophosInstall.exe in the Downloads folder.

3. Install by double-clicking on the file.

4. If it prompts "Do you want to allow this app to make changes on your device?" please click Yes.

5. Next, it will display the Terms and Conditions page. Click the Install button to begin.

Screenshot of Terms by Sophos Home

6. Run the installation with the default settings. Please note that an internet connection is required in order to download important updates.

7. After finishing the installation, you must login to the dashboard. If you already have a Sophos account, please login. Otherwise, please enter your details and click on the Create Account button.

8. Once you are in the Sophos Home console, click the Scan button to start checking the computer for PUA:Win32/Adsunwan components.

Screenshot of Sophos Home

9. Scanning may take a while; please wait for this process to finish.

10. After scanning the computer, Sophos Home will start cleaning or deleting files infected with PUA:Win32/Adsunwan.

11. You may now close Sophos Home. The computer is now free from PUA:Win32/Adsunwan, as well as associated malware and viruses.

After executing the above instructions, PUA:Win32/Adsunwan should have been completely removed from the computer. If there are still signs of infection or the computer is displaying unusual behaviors, please continue with the remaining procedures.

Another alternative for Windows 10/11 users is to scan the computer with Microsoft Defender Offline. This will run a virus scan in the recovery environment.

Step 3 : Double Check with Windows Security Apps

Microsoft Windows has a built-in security application that you can use to double-check if your computer is still infected with PUA:Win32/Adsunwan. For Windows 10/11 users, please run Windows Security.

Windows 10 / 11 Instructions:

Windows Security is a free tool that was built to help you remove PUA:Win32/Adsunwan, viruses, and other malicious items from Windows 10/11 systems. Follow these procedures to scan your computer with the tool:

1. Tap or click the Search charm and search for Windows Security

2. Click Open to run the program.

Screenshot of Win 11 Search

3. On the Dashboard, click Virus and threat protection from the sidebar.

Screenshot of Win 11 Virus Protection

4. On the right panel, click on Scan Options to see different levels of checking the computer.

5. Next, please select Full Scan button.

Screenshot of Full Scan Win 11

6. Lastly, click on the Scan now button to start scanning for the presence of PUA:Win32/Adsunwan. The process may take a while to complete.

7. After the scan, Delete/Quarantine identified threats, whether they were relevant to PUA:Win32/Adsunwan or not. You may now restart Windows to complete the virus removal process.

For Windows 8.1 and Windows 7, you can scan the computer for free with the Microsoft Malicious Software Removal Tool (MSRT 64-Bit). It is a stand-alone virus scanner tool that targets prevalent malware groups.

System Compatibility Notice

Logo of Windows

We ensured that our method to get rid of PUA:Win32/Adsunwan is compatible with the majority of Microsoft operating systems (Windows 7, Windows Vista, Windows 8, Windows 10, and Windows 11). To prevent complicated steps, the commands used in the instructions are common, useful, and tested. If you encounter any compatibility problems when following this tutorial, please message us or leave your comment below, and we will reply and make the required modifications.

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