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Prosperent “Virus” Removal (Firefox)

Parasite may reinstall itself multiple times if you don't delete its core files. We recommend downloading SpyHunter to scan for malicious programs installed with it. This may save you hours and cut down your time to about 15 minutes. 

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More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

This page aims to help you remove Prosperent “Virus” . These Prosperent  “Virus” removal instructions work for Chrome, Firefox and Internet Explorer, as well as every version of Windows.

Having problem with annoying browser ads? – this article might help you

Has your front page been changed without your permission or consent? Does your browser seem to behave weirdly? Do you see all sorts of intrusive ads once you open any of your browsers? If so, then this article should prove to be quite helpful for you. Many users who have experienced similar issues instantly jump to the conclusion that their PC has been infected by some sort of a malicious program/virus such as a Trojan Horse or a Ransomware. If you too fear that your system has fallen prey to some nasty and dangerous software, worry not – this is probably not the current case. Unless there are any other, more alarming symptoms than the ones that we’ve already listed (ransomware encrypts files, as an example), then we can pretty safely conclude that your machine is not infected by a virus. Instead, the most common reason why users get those browser ads and several other minor issues is the installation of Prosperent or some other adware type of program on their PC’s.

But what is the Prosperent “Virus” and what is adware? – you may ask. Well, adware (Prosperent “Virus”  included) are a type of browser add-ons, that fall under the general category of bloatware programs. On our site we have a separate article on bloatware if you need any extra info on that. Here we will only mention that such programs are usually not harmful. However, since they are usually useless and often annoying, they are considered unwanted. Same applies to adware add-ons and Prosperent respectively. What you are dealing with is one of the latest of adware applications and as such shares most of its characteristics with the rest of its kind.


These program’s main goal is the generation of ads. You may see them do some other unwanted things to your browser, however displaying of ads remains their main purpose. That’s because the developers of adware programs gain revenue via the various intrusive pop-ups, banners and box messages. The more clicks their ads receive, the more money the developers earn. This is also known as the pay-per-click method. Here is the time to tell you that we advise against clicking on the ads whatsoever. The reason why interacting with them is considered a bad idea is because, though rarely, some of them might redirect you to an illegal and dangerous websites. In most cases the ads don’t do that, but there’s always the possibility of landing on a harmful, virus-infested webpage, should you click on any of them. Besides, there’s hardly anything useful about those ads anyway even if they don’t bring your PC any harm. Sometimes you might even find yourself getting redirected to a page that you’ve already visited earlier. If, however, you get redirected to an unknown page that looks shady and suspicious, or is simply unknown, make sure that you close it as quickly as possible without interacting with it at all.

Ways of distribution and how to prevent catching the adware

The World Wide Web surely provides numerous options for the distribution of such intrusive programs. Users who tend to dig deeper into the Internet and visit borderline legal (or outright illegal) sites are particularly prone to getting Prosperent on their computers. In fact, an adware is the least problematic thing that you can get from wandering into the shadier corners of the internet. Therefore, probably the most important (and most overlooked) advise that can be given is to simply stay away from potentially harmful or illegal sites.

 The rest of this article will be focused on giving you a general idea of the most commonly used methods of Prosperent distribution.

  • One of the most popular ones are the spam e-mails. Despite being so widely-spread, this method is somewhat ineffective due to the spam filtration system most e-mail websites provide. Still, it is a good idea to always check the title and name of the sender before opening a new e-mail. If any of those look suspicious, you might be better off deleting the letter without opening it.
  • Torrent files and downloadable contents from file-sharing sites are another common method. When using such sites, you can never be 100% sure about the trustworthiness of whatever you’re downloading. Still, you can at least look at how the torrent/downloadable file has been rated by other users and also see if they have a big dowload count – an indication of a safe torrent/downloadable file.
  • File-bundling is arguably the most effective out of the three methods for Prosperent distribution mentioned in our article. Know that this is usually a legal way of distributing the adware. The intrusive add-on is bundled with a program (usually a free or a cheap one). Once you install that program, you also get the adware. Avoiding this is easy – surely much easier than removing the unwanted add-on afterwards (an uninstall is often not enough). In order to prevent installing the adware along the main program, all you have to do is simply opt for the advanced/custom settings menu and uncheck any added content that you may not want (or need). If an adware is bundled with the program, you should be able to see it in that list. Keep in mind that Prosperent may go under a different name. It should still be quite easy to tell which one it is, though.



Name Prosperent
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  Weird browser behaviour and awful lot of intrusive ads all over the place
Distribution Method Spam e-mails and torrents (mostly illegal); the most effective distribution method is the file-bundling
Detection Tool Prosperent  may be difficult to track down. Use SpyHunter – a professional parasite scanner – to make sure you find all files related to the infection.

Keep in mind, SpyHunter’s malware detection tool is free. To remove the infection, you’ll need to purchase the full version.
More information about SpyHunter and steps to uninstall.


Prosperent “Virus” Removal

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Reboot in Safe Mode (use this guide if you don’t know how to do it).

This was the first preparation.


To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Reveal All Hidden Files and Folders.

  • Do not skip this  – Prosperent  may have hidden some of its files.

Hold together the Start Key and R. Type appwiz.cpl –> OK.


You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

Type msconfig in the search field and hit enter. A window will pop-up:


Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

  • Remember this step – if you have reason to believe a bigger threat (like ransomware) is on your PC, check everything here.


Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

hosts_opt (1)

If there are suspicious IPs below “Localhost” – write to us in the comments.


Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).


Properties —–> Shortcut. In Target, remove everything after .exe.

ie9-10_512x512  Remove Prosperent  from Internet Explorer:

Open IE, click  IE GEAR —–> Manage Add-ons.

pic 3

Find the threat —> Disable. Go to IE GEAR —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

firefox-512 Remove Prosperent  from Firefox:

Open Firefoxclick  mozilla menu  ——-> Add-ons —-> Extensions.

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Prosperent  from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

Rename the Folder to Backup Default

Rename it to Backup Default. Restart Chrome.

  • At this point the threat is gone from Chrome, but complete the entire guide or it may reappear on a system reboot.


Press CTRL + SHIFT + ESC simultaneously. Go to the Processes Tab. Try to determine which ones are dangerous. Google them or ask us in the comments.


We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

Right click on each of the problematic processes separately and select Open File LocationEnd the process after you open the folder, then delete the directories you were sent to.



Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

Remember to leave us a comment if you run into any trouble!


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