Remove Mdrill.dll Trojan (TROJ.MDRILL.DLL)

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

Mdrill.dll falls under the Trojan Horse umbrella. This parasite slithers into your system through trickery and corrupts everything. In complete silence, the Trojan modifies your registry, starts malicious processes, and corrupts essential system files. The virus is very stealthy. You cannot notice it in time to prevent its infiltration. Once successfully established, however, it changes its behavior. Mdrill.dll becomes intrusive and pushy. It interferes with your every PC-related activity. You notice its influence all around your OS. The parasite alters your settings and prevents you from restoring your preferences. It installs annoying toolbars and browser extensions. Your previously excellent apps freeze and crash frequently. Some of them take forever to load, others – don’t start at all. You cannot get a simple task done without a pop-up interrupting you. Various messages and alerts appear for no apparent reason. And, to top it all off, your Internet connection becomes slow and unstable. The Trojan is behind these issues. This parasite is a menace. It has no place on your computer. The more time it has on your system, the worse your conditions become. Do something before these inconveniences become a security threat. Mdrill.dll Trojan has no place on your computer. It is a breach of your security. The nasty parasite threatens to download other viruses. Don’t give it a chance to further infect your computer. Act against the virus ASAP! The sooner you clean your system, the better!

Remove Mdrill.dll

How did I get infected with?

Mdrill.dll Trojan does not target individual victims. The parasite uses mass-distribution methods to reach a broad spectrum of potential victims. It uses torrents, spam emails, corrupted links, fake updates, and corrupted software bundles. All these methods deliver the parasite to your system. They don’t install it. You do it. How? By not paying attention to the fine print! Your recklessness is the cause of the infection. Learn your lesson! Mdrill.dll tricked you once, don’t let other parasites do the same. Don’t visit shady websites. Download your software from reputable sources only. When available, use the advanced/custom installation option. Do not rush through any setup process. Make sure you know what approve on your PC. Read the terms and conditions. And, of course, be very careful with your inbox. The good old spam emails are still the number one cause of virus infections. Yet, the spam mail is not what it used to be. The crooks no longer rely on corrupted attachments. They use them, but they also use corrupted links. Did you know that you can download a virus with just one click? So, don’t click. If you receive an unexpected message, don’t open it at all. Verify its sender first. The crooks tent to write on behalf of well-known organizations. If you receive a letter, from your bank, for example, go to their official website. Compare the email addresses listed there with the one you’ve received a message from. If they don’t match, delete the pretender immediately. The key to a secure and infection-free computer is caution. Only your vigilance can protect your system. So, don’t be lazy. Always do your due diligence!

Why is this dangerous?

The Trojans are the most feared virus for a good reason. These parasites are destructive. They slip into your system and wreak utter havoc. Mdrill.dll Trojan is no exception. This parasite is more than capable of wrecking your system. It alters your settings, corrupts essential files, and messes with your apps. You can barely use your device because of the Trojan. But your comfort, or the lack of it, is not the problem here. Mdrill.dll is not a mere annoyance. This parasite is a security threat. The Trojan spies on its victims. It knows where your files are stored, what apps you have installed, your IP and MAC addresses. As if that’s not enough, but the parasite can upgrade itself. It can install malware such as spyware, adware, and hijackers. And thus, monitor even more data points. The Trojan is an invader with takes over your system. It can manipulate your computer and turn you into a target. The biggest problem with this virus is that it’s unpredictable. It tends to affect its individual victims differently. No one can tell you what the future holds for your device. It all depends on the hackers and their current needs. Do not wait for them to take action. Be the first to act! Remove the Trojan before it gets the chance to cause irreversible damage!

Manual Mdrill.dll Removal Instructions

The Mdrill.dll 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 Mdrill.dll 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 Mdrill.dll related processes in the computer memory

STEP 2: Locate Mdrill.dll startup location

STEP 3: Delete Mdrill.dll traces from Chrome, Firefox and Internet Explorer

STEP 4: Undo the damage done by the virus

STEP 1: Track down Mdrill.dll 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 Mdrill.dll 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 Mdrill.dll 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 Mdrill.dll

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 Mdrill.dll, 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 Mdrill.dll 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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