JS/Flafisi.D Trojan Removal (Sept. 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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This page aims to help you remove JS/Flafisi.D Trojan. Our removal instructions work for every version of Windows.

JS/Flafisi.D Trojan is a very malicious computer program which once inside your machine can cause all sorts of unpredictable issues. Here are some of the activities that may be a consequence of the infection with this Trojan horse:

  • Damage, corruption, and deletion of files, important system components, and installed software.
  • Destruction of the entire systems by deleting important OS files or formatting the hard disks.
  • Theft of personal and professional data and financial information such as credit or debit card numbers, login credentials, passwords, important personal documents, archives, and other sensitive information.
  • Tracking the users’ activity, monitoring keystrokes on the keyboard. The Trojan horse may also make screenshots on the infected computer’s screen and send the collected information to remote criminal servers.
  • Installation of backdoors to your PC, which allow the hackers to take over the computer.
  • Loading other dangerous viruses such as Ransomware, Spyware, Worms and many more.
  • Exploitation of the computer resources for spam and malware distribution or launching of Denial of Service (DoS) or other network attacks.
  • Malfunction of the antivirus, anti-spyware and other security programs. Trojan horses can disable important system applications and prevent the performance of standard system processes.
  • Blocking of access to trusted sites and sources for computer security.
  • Issues with the system performance, Internet connection and computer speed and general instability.

These are just some of the possible activities that a threat like JS/Flafisi.D Trojan may be responsible for, but you don’t need to wait to experience them in order to remove the infection. If your computer has been compromised, we highly recommend you use the instructions in the Removal Guide below and eliminate the virus as soon as possible.

How to effectively remove JS/Flafisi.D Trojan and protect your PC?

Using trusted security software is the best way to remove Trojans from your system. These threats are quite sophisticated and tend to hide their malicious scripts deep inside the OS, where it may be quite challenging for inexperienced computer users to detect them. That’s why we recommend you use some professional software such as the specialized malware-removal tool from this page for the detection and removal of the Trojan. If the malware prevents you from installing and running a scan with this tool or if you simply think that you can handle the threat manually, you can use the instructions from the Removal Guide that our “How to remove” team has prepared. They can help you detect and delete JS/Flafisi.D Trojan , but to be able to scan your system properly and find any suspicious components that might have been left behind, we still recommend you install a reliable security program that can seek out the possible remnants of the malware.

JS/Flafisi.D Trojan Removal



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. 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: https://howtoremove.guide/online-virus-scanner/

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. If you see a screen like this when you click Uninstall, choose NO:



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.


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.

Once inside, press CTRL and F together and type the virus’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!

In how many ways can JS/Flafisi.D infiltrate your system?

Typically, Trojans like JS/Flafisi.D can infect you without any actual symptoms. This malware spreads itself in a number of ways, but the security experts typically highlight five main ways that such a Trojan can eventually get into your system:

  • A great number of infections happen through malicious email attachments and spam messages, which carry contaminated data. The Trojan typically relies on camouflage to mislead the victims about its real nature and purpose and is often presented as a useful plugin, an application, a link, an offer, a software installer, or even an amusing image, audio or video file. Once it tricks the users into opening it, the infection silently installs its scripts on the system and tries to hide its traces.
  • A threat like JS/Flafisi.D may get inside the system via a weaknesses in your browser or security holes in your system. Outdated software and skipped installation of security patches may easily be exploited by such malware.
  • The hackers often insert their malicious payload inside insecure sites, which are filled with harmful links or which distribute unreliable pop-up ads. If a visitor lands on a similar site and clicks on the generated advertising content, the computer might get automatically infected. Sadly, nothing suspicious can be noticed at the moment of the infection because the threat does not show any unusual symptoms or warnings.
  • Trojans may be integrated into software installation packages. They may even resemble legitimate programs and prompt you to install updates or new, free, or test versions of popular software, which are, in fact, fake and used to deliver the malware to your system. You can also download this threat as a torrent, spam message attachment or a popup offering a Java or Flash Player update.
  • Different shareware, freeware and torrent platforms may also be used as distributors for Trojans. That’s why, you should be careful with the sources you use to download software and stick to reputed web locations.

As you can see, a Trojan like JS/Flafisi.D can sneak into the system from various Internet sources such as insecure web pages or networks. The best way to save yourself from its malicious actions is to remove it as soon as possible and ensure that your PC has no security vulnerabilities and is protected with a reliable antivirus tool.


Name JS/Flafisi.D
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  This threat is very difficult to detect and usually has no symptoms of its presence. 
Distribution Method  Various transmitters – from spam and email attachments to ads, pop-ups, fake software update requests and installers to infected web pages, misleading links and pirated materials. 
Detection Tool

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.

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