Ads Removal

Pua/Teoma “Virus” Removal (Feb. 2019 Update)

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. 

Download SpyHunter Anti-Malware

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

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

An Adware program on your PC might not be the most problematic software issue you might encounter but it’s certainly an unpleasant one and could significantly decrease the quality of the time you spend online. The main reason for that is the ability of Adware programs to fill the user’s browser with different types of advertisements. Banners, box messages, flashy pop-ups, random page redirects and other similar promotional materials are all likely to start appearing on your screen once an Adware program has gotten installed on your machine. Now, you might think that switching to another browser would fix this issue in case nothing else does the job but the truth is that most of the time it is irrelevant what browser you are using. Adware apps are usually capable of latching onto most browsers out there so you might be using Chrome, IE, Opera, Firefox, Edge or something else and the Adware is still likely going to be able to infiltrate it and flood it with its ads.

So what could you do then in order to make all this annoyance stop? Well, the best method for handling such an issue is locating the source of the intrusive ads on your PC and getting rid of it. In the removal guide below, we will show you how to do that with Pua/Teoma “Virus” which is one of the newest Adware programs out there. If anyone of you currently has Pua/Teoma “Virus”, you might find the instructions from the guide highly useful for dealing with such an issue. Just follow them closely and complete all of the presented steps. Also, you can make use of the suggested removal program that, too, is available from the guide. It can take care of the Pua/Teoma “Virus”-related issue for you in case you don’t feel like going through all the manual steps. However, we’d still advise you to use both of the methods together as this would give you the highest chance of successfully and quickly getting rid of the pesky app.

Pua/Teoma “Virus” Removal

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide


Some of the steps will likely require you to exit the page. Bookmark it for later reference.

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



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.

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 


Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 


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.


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.

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

  1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
  2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
  3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.



  • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

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 Pua/Teoma 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 Pua/Teoma  from Firefox:

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

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Pua/Teoma 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.


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.

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 up 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

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

Are Adware dangerous programs?

It’s isn’t difficult to guess what the main purpose of a typical Adware app is. After all, all those programs seem to do is generate irritating ads for your browser without actually offering you anything useful in return. Now, here is the point where we need to mention that there might be Adware apps out there that could actually possess useful features but they need the adverts to remain free while still making a profit for their creators. However, most representatives of the Adware category are simply unneeded, unhelpful and highly intrusive and invasive to the point where one could even think of them as viruses. However, such a categorization would be inaccurate. Adware apps are not like Trojans or Ransomware in the sense that they are usually incapable of causing any real damage to your machine (directly that is). Pua/Teoma “Virus”, for instance, should typically be relatively safe and there’s no reason to panic if you have it on your computer. However, you need to realize that there are still certain risks commonly associated with Adware programs like this one. Malvertising is a very popular method used for spreading all kinds of malware and it could be really difficult to tell if a certain online ad is safe or if it’s actually being used as a tool for distributing viruses like Spyware, Trojan Horses, Ransomware, Worms, etc. Since a lot of the ads coming from Pua/Teoma “Virus” might actually originate from unreliable sources and might sometimes be unsafe, it is best if you keep your distance from any advertising materials that this app might put inside your browser. Also, this is yet another valid reason why it’s probably better if the Adware program gets removed from your machine as soon as possible.

Is there a way to prevent future installations of hijackers?

The typical method used for distributing apps like Pua/Teoma “Virus” is the file-bundling model where the unwanted software piece is integrated with the installer of some other program. Normally, the user is given the opportunity to leave out the added app through the Custom setup menu. However, most customers never bother to actually check that menu which is how they unknowingly give their agreement to the installation of the bundled software component. Now, that you are aware of this,from now on, you should always use this menu to customize the installation and leave out any potentially unwanted applications that might have been added to the installation wizard. We’d also suggest that you carefully pick what sources of new software you use, what websites you ten to visit in general and what online content you interact with. A general rule of thumb here is to keep away from anything that looks questionable, obscure, illegal or unsafe.

Name Pua/Teoma
Type  Adware
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  If your browser is constantly getting flooded with all kinds of ads, pop-ups, blinking messages and banners, then you more than likely have an Adware on your hands.
Distribution Method Adware programs are typically distributed through spam messages, file bundles and deceitful online adverts.
Detection Tool

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