Ads Removal

Fasst “Virus” Removal (July 2018 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. 

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

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

A potentially unwanted application, called Fasst “Virus”, is recently causing browsing disturbance to some web users. Our “How to remove” team has been reached by a couple of people, who are complaining about the never-ending stream of ads, pop-ups and banners that this application is generating on their Chrome, Firefox, Explorer or Edge. This piece of software seems to make the affected browser unresponsive to the users’ searches and tends to flood their screen with various aggressive and hard-to-remove advertisements and new tabs. In addition, Fasst “Virus” is reported to initiate automatic page-redirects to different commercial websites and unfamiliar web locations, and this way, prevents the people from landing on the sites they want. Such activity could naturally be questioned and even taken for a virus infection, however, to your relief, this is not the case. You are most likely dealing with an Adware application, which is programmed to generate sponsored commercials during your browsing sessions. In the text that follows, we will tell you more about this type of software and about Fasst “Virus” in particular, so you can better understand what to expect and how can you deal with it in the best possible way.

Usually, what causes disturbance to the users, who have Adware on their system, is the fact that this software, as we said above, generates hard-to-remove ads, pop-ups and automatic page-redirects, during each browsing session. There are some other common and quite questionable activities, which you may like to learn about if you have Fasst  “Virus” or similar ad-generating program on your PC, so stay with us, because in the guide below we are going to tell you more about them. Should you need assistance to remove the nagging ads once and for all, we’ve got you covered! There is a removal guide and an automatic removal tool on this page, which will help you uninstall the source of the ads without risk for your system. 

Fasst “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 Fasst 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 Fasst from Firefox:

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

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Fasst 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!

What makes Fasst “Virus” different from a real computer virus?

Facing an unstoppable flow of pop-ups, banners, new tabs and ads of various kinds could be quite unpleasant and shocking experience. Most of the users normally panic in such situation and the first thing that crosses their mind is a virus attack. This is very normal because, the way the Adware operates could, indeed, be very aggressive. However, there is no real need for panic because this type of software does NOT have the malicious intentions, or the harmful abilities of a Ransomware or a Trojan horse infection, for example. The purpose of the Adware is to advertise, not to steal your passwords or encrypt your data, therefore, the security experts do not consider it as a real threat to your system’s safety, but rather as a potentially unwanted piece of software, which may eventually cause you some unpleasant disturbance.

In their nature, programs like Fasst have no features, which bring them close to any known computer threat. Most viruses aim to cause some damage, fraud or theft, while Fasst “Virus” and the programs of its kind are only interested in promoting certain sponsored commercial messages on your screen and making you click on them. This way, the developers of the Adware can gain Pay-Per-Click revenue for their advertising service, while the businesses, whose products and services get displayed on your monitor, can gain exposure, traffic, and clicks. So far, there is no law,  which forbids this type of direct online advertising, that’s why, generally, programs like Fasst “Virus” are seen as legitimate. Viruses such as Spyware, Trojans or Ransomware, on the other hand, are illegal tools for cybercrimes and the people, who stand behind them are cyber criminals.

Why would you want to uninstall Fasst “Virus” if not malicious?

The interruption, which the Adware causes with its constantly popping ads, is the main reason why most of the people prefer to uninstall this software from their computers. Fasst, for instance, may typically integrate with your default browser and force it to generate potentially unwanted or irrelevant commercial messages when you least need it. Some Adware applications may also run background data collection services, which may keep a track on the users’ browsing history and recent web activities, and then transmit this data to third parties. Normally, there are online marketing agencies behind this data collection service, which are interested in knowing more about the users’ needs, likes and preferences. Based on the collected data, they try to create and display ads, which are more appealing and match the users’ searches. However, some people may consider this activity a good reason to uninstall the Adware and stop third parties from collecting and analyzing their browsing data. 


Name Fasst
Type  Adware
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  Ads of various kinds may pop-up on your screen in a never-ending stream.
Distribution Method This program is mostly distributed for free along with other applications in software bundles, free download sites, spam messages, torrents, ads. 
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