QuantLoader Trojan Removal

This article can help you to remove QuantLoader Virus. The step by step removal works for every version of Microsoft Windows.

QuantLoader is a menacing member of the Trojan family. It’s a self-replicating Trojan infection. That means, it’s able to make copies of itself. And, place them throughout different areas of your system. Thus, making it immensely difficult for you to rid your system of its presence. And, the last thing you want on your computer is the QuantLoader tool. It’s malicious, meddling, and throws you into a whirl of grievances. The more time it remains, the bigger the damage it causes. That’s why, experts advise towards its immediate removal. Once you become aware of its existence, do your best to find where it lurks. Then, when you do, delete it! Do NOT delay its removal! That only leads to further grievances, and regret. Don’t set yourself up for a bad time. Instead, protect yourself, as well as your system. Get rid of the nasty infection ASAP.

Remove QuantLoader

How did I get infected with?

As most cyber threats, QuantLoader turns to trickery to invade. It employs the old but gold means of infiltration. The Trojan uses spam emails, corrupted links, and it can even pose as a fake update. But, most of all, it turns to freeware. It takes the title of most preferable method. That’s because, it offers the easiest way in. For reasons unknown, users are extra careless when installing freeware. Instead of being thorough, and doing their due diligence, they do the opposite. They choose to throw caution to the wind, and rely on luck. They don’t bother to read the terms and conditions, but say YES to everything in blind faith. They leave their fate to chance. And, end up paying for that dreadful mistake. Do NOT give into naivety, haste, or distraction. Don’t choose carelessness over caution. Especially, when dealing with tools or updates off the web. Anything, you get off the web, you should consider suspicious. And, you should treat with the utmost attention. Anything else leads to consequences, you won’t much enjoy.

Why is this dangerous?

QuantLoader messes up your system. It meddles with setting, forces unwanted reshuffles on you. It’s a menace! At the very least, it turns your browsing activities into a nightmare. It makes it so you cannot go online without suffering a barrage of interference. Every time, you so much as touch your browser, your screen gets flooded. The Trojan bombards you with an array of advertisements. Pop-up, banner, in-text. Every type of ad there is, you see. And, that’s not all. You also get redirected, non-stop. A variety of suspicious third-party pages get forced on you, incessantly. Browsing the web turns into quite the hellish experience. And, don’t think these disruptions go unnoticed. They take a toll on your system. It starts to crash more often. Your computer slows down, as well. But, do you know what? These are the minor inconveniences. They’re a walk in the park, compared to the privacy threat, you face. Oh, yes. The Trojan threatens your security. It follows programming to spy on you, from the moment it invades. And, it does. The infection keeps a close eye on every move you make, while browsing. And, also records it. Then, after it deems it has collected enough information from you, proceeds to send it. To whom? Well, to the unknown third parties, responsible for its release. The strangers, who published the dangerous cyber threat. Those are the people, who get access to your private details. Are you okay with that? Cyber criminals with agendas getting a hold of your information? Don’t leave your personal and financial data into their hands! Do yourself a favor, and get rid of the dreadful infection. As soon as the opportunity presents itself, act against the Trojan. QuantLoader has no place on your PC!

Manual QuantLoader Removal Instructions

The QuantLoader infection is specifically designed to make money to its creators one way or another. The specialists from various antivirus companies like Bitdefender, Kaspersky, Norton, Avast, ESET, etc. advise that there is no harmless virus.

If you perform exactly the steps below you should be able to remove the QuantLoader infection. Please, follow the procedures in the exact order. Please, consider to print this guide or have another computer at your disposal. You will NOT need any USB sticks or CDs.

STEP 1: Track down QuantLoader related processes in the computer memory

STEP 2: Locate QuantLoader startup location

STEP 3: Delete QuantLoader traces from Chrome, Firefox and Internet Explorer

STEP 4: Undo the damage done by the virus

STEP 1: Track down QuantLoader related processes in the computer memory

  • Open your Task Manager by pressing CTRL+SHIFT+ESC keys simultaneously
  • Carefully review all processes and stop the suspicious ones.


  • Write down the file location for later reference.

Step 2: Locate QuantLoader startup location

Reveal Hidden Files

  • Open any folder
  • Click on “Organize” button
  • Choose “Folder and Search Options”
  • Select the “View” tab
  • Select “Show hidden files and folders” option
  • Uncheck “Hide protected operating system files”
  • Click “Apply” and “OK” button

Clean QuantLoader virus from the windows registry

  • Once the operating system loads press simultaneously the Windows Logo Button and the R key.


  • A dialog box should open. Type “Regedit”


Depending on your OS (x86 or x64) navigate to:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] or
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] or

  • and delete the display Name: [RANDOM]

delete backgroundcontainer

  • Then open your explorer and navigate to: %appdata% folder and delete the malicious executable.

Clean your HOSTS file to avoid unwanted browser redirection

Navigate to %windir%/system32/Drivers/etc/host

If you are hacked, there will be foreign IPs addresses connected to you at the bottom. Take a look below:


Step 4: Undo the possible damage done by QuantLoader

This particular Virus may alter your DNS settings.

Attention! this can break your internet connection. Before you change your DNS settings to use Google Public DNS for QuantLoader, be sure to write down the current server addresses on a piece of paper.

To fix the damage done by the virus you need to do the following.

  • Click the Windows Start button to open the Start Menu, type control panel in the search box and select Control Panel in the results displayed above.
  • go to Network and Internet
  • then Network and Sharing Center
  • then Change Adapter Settings
  • Right-click on your active internet connection and click properties. Under the Networking tab, find Internet Protocol Version 4 (TCP/IPv4). Left click on it and then click on properties. Both options should be automatic! By default it should be set to “Obtain an IP address automatically” and the second one to “Obtain DNS server address automatically!” If they are not just change them, however if you are part of a domain network you should contact your Domain Administrator to set these settings, otherwise the internet connection will break!!!


  • Check your scheduled tasks to make sure the virus will not download itself again.

How to Permanently Remove QuantLoader Virus (automatic) Removal Guide

Please, have in mind that once you are infected with a single virus, it compromises your whole system or network and let all doors wide open for many other infections. To make sure manual removal is successful, we recommend to use a free scanner of any professional antimalware program to identify possible virus leftovers or temporary files.

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