Trojan.MSIL.Stealthmutant.A.Enc

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Trojan.MSIL.Stealthmutant.A.Enc

Trojan.MSIL.Stealthmutant.A.Enc is a very malicious computer virus that can secretly steal sensitive data and take full control of critical system processes and tasks in your computer. Security professionals classify Trojan.MSIL.Stealthmutant.A.Enc as a Trojan Horse that is reported to fool their victims with various cover up infection strategies.

Trojan.msil .stealthmutant.a.enc

Typically, such a Trojan threat will be disguised as a harmless application or software that is available free of charge on some low-quality or pirated site. Of course, it’s never a safe idea to download material from such web pages, firstly because it’s illegal, and secondly because this may increase the chance of a close encounter with a harmful infection such as Trojan.MSIL.Stealthmutant.A.Enc, Wup.exe or Multi Speed Up.

Unfortunately, the main issue is that it is quite impossible to really know if a certain piece of software or web content has a Trojan embedded in it since these threats may also distribute via spam messages, different attractive looking ads, pop-ups, email attachments and more.

A stable, up-to-date antivirus software will , of course, help you spot the hidden danger, although this is not necessarily true to new viruses (also known as Zero-Day malware) that have just been discovered. The reason is, most of the antivirus programs rely on their virus database to identify threats and if the given Trojan has not been added to the antivirus’ malware database yet, it may not be detected. In those scenarios, and if you haven’t updated your security tool from some time, the level of protection of your machine may be greatly decreased and the likelihood of detecting new dangers like Trojan.MSIL.Stealthmutant.A.Enc on time may be greatly reduced. As a result, you may end up being attacked without any clue.

The Trojan.MSIL.Stealthmutant.A.Enc Malware

A Trojan virus like Trojan.MSIL.Stealthmutant.A.Enc would usually show no symptoms, but some of its malicious activities still may cause certain issues in the computer that may serves as visible red flags. The unexpected sudden crashes of the system and the introduction of a hideous Blue Screen of Death are some of the most popular signs that your system is infected with the Trojan.MSIL.Stealthmutant.A.Enc malware.

SUMMARY:

NameTrojan.MSIL.Stealthmutant.A.Enc
TypeTrojan
Danger LevelHigh (Trojans are often used as a backdoor for Ransomware)
SymptomsThe system lags, crashes, and software errors may sometimes indicate a possible Trojan infection.
Distribution MethodIn many cases, users face Trojans when they interact with spam messages, malvertisements, sketchy email attachments, torrents and pirated content.
Detection Tool

Please follow all the steps below in order to remove Trojan.MSIL.Stealthmutant.A.Enc!

How to remove Trojan.MSIL.Stealthmutant.A.Enc

  1. First, click the Start Menu on your Windows PC.
  2. Type Programs and Settings in the Start Menu, click the first item, and find Trojan.MSIL.Stealthmutant.A.Enc in the programs list that would show up.
  3. Select Trojan.MSIL.Stealthmutant.A.Enc from the list and click on Uninstall.
  4. Follow the steps in the removal wizard.

What we suggest you do first is, check the list of programs that are presently installed on the infected device and uninstall any rogue software that you find there:

  • From the Start Menu, navigate to Control Panel ->>> Programs and Features ->>> Uninstall a Program.
  • Next, carefully search for unfamiliar programs or programs that have been installed recently and could be related to Trojan.MSIL.Stealthmutant.A.Enc.
  • If you find any of the programs suspicious then uninstall them if they turn out to be linked to Trojan.MSIL.Stealthmutant.A.Enc.
  • If a notification appears on your screen when you try to uninstall a specific questionable program prompting you to just alter it or repair it, make sure you choose NO and complete the steps from the removal wizard.

Remove Trojan.MSIL.Stealthmutant.A.Enc from Chrome

  1. Click on the three dots in the right upper corner
  2. Go to more tools
  3. Now select extensions
  4. Remove the Trojan.MSIL.Stealthmutant.A.Enc extension
  • Once you open Chrome, click on the three-dots icon to open the browser’s menu, go to More Tools/ More Options, and then to Extensions.
  • Again, find the items on that page that could be linked to Trojan.MSIL.Stealthmutant.A.Enc and/or that might be causing problems in the browser and delete them.
  • Afterwards, go to this folder: Computer > C: > Users > *Your User Account* > App Data > Local > Google > Chrome > User Data. In there, you will find a folder named Default – you should change its name to Backup Default and restart the PC.
  • Note that the App Data folder is normally hidden so you’d have to first make the hidden files and folders on your PC visible before you can access it.

How to get rid of Trojan.MSIL.Stealthmutant.A.Enc on FF/Edge/etc.

  1. Open the browser and select the menu icon.
  2. From the menu, click on the Add-ons button.
  3. Look for the Trojan.MSIL.Stealthmutant.A.Enc extension
  4. Get rid of Trojan.MSIL.Stealthmutant.A.Enc by removing it from extensions

If using Firefox:

  • Open Firefox
  • Select the three parallel lines menu and go to Add-ons.
  • Find the unwanted add-on and delete it from the browser – if there is more than one unwanted extension, remove all of them.
  • Go to the browser menu again, select Options, and then click on Home from the sidebar to the left.
  • Check the current addresses for the browser’s homepage and new-tab page and change them if they are currently set to address(es) you don’t know or trust.

If using MS Edge/IE:

  • Start Edge
  • Select the browser menu and go to Extensions.
  • Find and uninstall any Edge extensions that look undesirable and unwanted.
  • Select Settings from the browser menu and click on Appearance.
  • Check the new-tab page address of the browser and if it has been modified by “Trojan.MSIL.Stealthmutant.A.Enc” or another unwanted app, change it to an address that you’d want to be the browser’s new-tab page.

How to Delete Trojan.MSIL.Stealthmutant.A.Enc

  1. Open task manager
  2. Look for the Trojan.MSIL.Stealthmutant.A.Enc process
  3. Select it and click on End task
  4. Open the file location to delete Trojan.MSIL.Stealthmutant.A.Enc
  • Access the Task Manager by pressing together the Ctrl + Alt + Del keys and then selecting Task Manager.
  • Open Processes and there try to find a process with the name of the unwanted software. If you find it, select it with the right button of the mouse and click on the Open File Location option.
  • If you don’t see a “Trojan.MSIL.Stealthmutant.A.Enc” process in the Task Manager, look for another suspicious process with an unusual name. It is likely that the unwanted process would be using lots of RAM and CPU so pay attention to the number of resources each process is using.
  • Tip: If you think you have singled out the unwanted process but are not sure, it’s always a good idea to search for information about it on the Internet – this should give you a general idea if the process is a legitimate one from a regular program or from your OS or if it is indeed likely linked to the adware.
  • If you find another suspicious process, open its File Location too.
  • Once in the File Location folder for the suspicious process, start testing all of the files that are stored there by dragging them to our free online scanner available below.
  • Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
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    • If the scanner finds malware in any of the files, return to the Processes tab in the Task Manager, select the suspected process, and then select the End Process option to quit it.
    • Go back to the folder where the files of that process are located and delete all of the files that you are allowed to delete. If all files get deleted normally, exit the folder and delete that folder too. If one or more of the files showed an error message when you tried to delete them, leave them for now and return to try to delete them again once you’ve completed the rest of the guide.

    How to Uninstall Trojan.MSIL.Stealthmutant.A.Enc

    1. Click on the home button
    2. Search for Startup Apps
    3. Look for Trojan.MSIL.Stealthmutant.A.Enc in there
    4. Uninstall Trojan.MSIL.Stealthmutant.A.Enc from Startup Apps by turning it off
    • Now you need to carefully search for and uninstall any Trojan.MSIL.Stealthmutant.A.Enc-related entries from the Registry. The easiest way to do this is to open the Registry Editor app (type Regedit in the windows search field and press Enter) and then open a Find dialog (CTRL+F key combination) where you have to type the name of the threat. 
    • Perform a search by clicking on the Find Next button and delete any detected results. Do this as many times as needed until no more results are found. 
    • After that, to ensure that there are no remaining entries lined to Trojan.MSIL.Stealthmutant.A.Enc in the Registry, go manually to the following directories and delete them:
    • HKEY_CURRENT_USER/Software/Random Directory. 
    • HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/Run/Random
    • HKEY_CURRENT_USER/Software/Microsoft/Internet Explorer/Main/Random

    Is Trojan.MSIL.Stealthmutant.A.Enc dangerous?

    Other symptoms that could be related to a possible Trojan Horse contamination include various unusual glitches, device slow-downs, file loss or destruction, and various unauthorized adjustments to the configuration of some applications and programs.
    Unfortunately, we are unable to give you any specific symptoms that could be linked to Trojan.MSIL.Stealthmutant.A.Enc because in some cases there might be any while in others there might be serious issues. All this depends on what type of harm exactly the Trojan has been programmed to perform. What we can say for sure is that, once you detect the malware, you should immediately take actions to remove it and not give it a chance to do more potential harm.
    The earlier you delete the Trojan from your machine, the more likely it is that there will be no significant harm to your system or the data stored on it. If you need assistance, below you will find a guide with detailed steps on how to remove Trojan.MSIL.Stealthmutant.A.Enc. If you think you cannot complete the Trojan-removal steps on your own, it is a good idea to use the recommended removal tool, the link to which is attached in the guide.  

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    About the author

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    Lidia Howler

    Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.

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