Remove Trojan.Mauvaise.SL1 Virus From PC

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Trojan.Mauvaise.SL1 is a very harmful and nasty Trojan malware infection. It can secretly enter your computer and leads to major destruction. This virus has been detected by various security vendors who reported it as stealthy. It will hide deep into your machine and modify several Windows settings. It can also alter your DNS records and add new registry entries without permission. The most worst part is, Trojan.Mauvaise.SL1 virus can also download and execute other malware including Ransomware. We have done a full research about this infection and we will help you to remove this infection swiftly from your system.

Trojan.Mauvaise.SL1 : Threat Analysis

Category Malware
Type Trojan
Name Trojan.Mauvaise.SL1
Description It is a malicious JavaScript that downloads and executes malware on your PC including Ransomware
Symptoms Scary alert on your system that says your PC is infected and privacy is compromised.
Detection Windows Defender Antivirus, Microsoft Security Essentials
Removal Trojan.Mauvaise.SL1 Download SpyHunter 5 Anti-Malware

Trojan.Mauvaise.SL1 is a dangerous malware infection which can easily get executed when you visit any malicious or compromised website that host javascript files. When that malicious script runs, it will take full control over your browser and show some kind of scary alert on your screen. This dubious threat is able to infected all versions of Windows computers including Windows 10. Apart from this, Trojan.Mauvaise.SL1 virus can infect all your main browsers like Google Chrome, MS Edge, Firefox, Internet Explorer, Opera etc. This nasty Trojan virus normally runs in background, so you won’t be able to find out about this infection until its shows those errors. Meanwhile you will experience some lagging in system speed, slow Internet, corrupt files and freezing applications.


Once inside your computer, Trojan.Mauvaise.SL1 virus can bring threats like backdoor Trojan, worms, Ransomware and others. It will disable your regular anti-virus and firewall security. Suddenly will find out that all your files are encrypted by a nasty Ransomware that will demand ransom money to release your files. So it is very necessary to regularly update your anti-virus program and scan your PC fro threats like this. If you already take those measures then it is possible that your security application can detect this threat. But be advised Trojan.Mauvaise.SL1 virus can detected and identified by different names which completely depends on your anti-virus programs. Most of the security vendors detect same threats with different names, so there is no need to worry.

How Trojan.Mauvaise.SL1 Enter Your PC

Makers of Trojan.Mauvaise.SL1 virus take precautionary measures to safely drop this threat into your system. Spam email attachments are the most common way of intruding any malware on the targeted machine. You might got lots of unknown emails, most of them could get marked as spam emails by your email providers. Have you ever consider why they get marked? mails with contain unknown attachments are the best and most easy way to drop a malware. When you open your emails you might find various emails with offers, tax refunds, delivery report, credit card charges, lottery results, gift cards etc. from unknown senders. These could be the courier for the malware so never open any attachment with scanning it first. Apart from this bundled freeware software, infected external hard drives or pen drives, malicious webpages, hacked websites are also easy ways to spread malware. It is very important to stay alert while surfing online or downloading any free programs. Cracked software, nulled themes, shareware programs, cheat codes apps, hack software are more likely to bring others threats and malware like Trojan.Mauvaise.SL1 on the system.

How To Remove Trojan.Mauvaise.SL1 From PC

If your PC is infected by Trojan.Mauvaise.SL1 infection then it is really a critical situation. If don’t remove this threat quickly from your system, then it could lead to various harmful effects. This nasty malware can alter your system settings, expose your personal data, steal your financial details and corrupt your entire system. This guide offers tow type of removal process to remove this infection 1. Automatic Removal 2. Manual Removal. Manual removal of this threat could be quite risky and time taking. It is also not sure that manual removal method is effective enough to completely remove this infection. In most of the cases, some left over files of the malware can bring the infection on the compromised machine. Threats like Trojan.Mauvaise.SL1 also spread its copies on the infected PC with different names which could be hard to detect without knowing the malicious code type. In such case if you can’t remove those duplicate malware files, then malware will keep doing its dirty work in the background. So we suggest our readers to use a powerful Anti-Malware Software to detect and remove Trojan.Mauvaise.SL1 virus and all hidden threats from the system.

Automatically Remove Trojan.Mauvaise.SL1 

If you are looking for a quick, permanent and safe way to remove Trojan.Mauvaise.SL1 infection from your system then you should use a powerful Automatic Malware Scanner to detect and remove all the files, hidden programs, registry keys, shortcuts etc. associated to this infection and remove all at once. We suggest one of the most trusted and best anti-malware application for the removal of this threat in this guide which comes highly recommended and performs up to the reputation. It is quick, effective, very easy to use and the virus database is regularly updated to fight against nay kind of malware outbreak like Trojan.Mauvaise.SL1. Best of all, you don’t need any kind of special technical expertise to use this application and it offers free detection services. You just have to download the Automatic Malware Removal Tool and it will do the rest for you. It is a completely safe and fully automated software that can detect and remove Trojan.Mauvaise.SL1 malware all the other harmful and malicious threats from your system like Trojan, viruses, keylogger, malware, scam pop-up, rootkits, spyware, Ransomware, worms and many others.

Trojan.Mauvaise.SL1 Download SpyHunter 5 Anti-Malware Now

Amazing Features Of Automatic Malware Scanner

Malware Detection & Removal – Detect and remove spyware, rootkits, ransomware, viruses, browser hijackers, adware, keyloggers, trojans, worms and other types of malware.

Custom Scan – This feature gives you freedom to scan any part of your system particularly to find hidden threats including external hard drives or USB drives.

Real Time Protection – Advanced system guard feature has malware blocking technology which helps protect your PC against malware attacks, threats and other objects.

Technical Support – It is one of the best feature that provide ’24×7′ technical help to the users of custom malware fixes, specific to unique malware problems.

Regular Malware Definition Updates – Daily malware definition updates ensure complete protection of your PC and and help you protect your system from the latest malware threats or any latest malware outbreak.

Note : Removing Trojan.Mauvaise.SL1 manually needs proper knowledge of system settings and programs. If make a little mistake in the manual process and delete wrong files, you might end up killing your system. So you are advised to use Automatic Malware Scanner to identify hidden threats and malware.

Manually Remove Trojan.Mauvaise.SL1 Virus

(Important NOTE – Please Bookmark This Page before starting the manual removal process because you might need to restart your PC or browser during the process.)

Attention! For the safety of your computer, before you start to remove Trojan.Mauvaise.SL1 manually, please confirm the following points:

1. You have good technical knowledge and experience for removing virus manually;

2. You know all the functions of your system process and its applications;

3. You are familiar with Registry entry and know the severe consequence of any mistake;

4. You are able to reverse the wrong operations during Trojan.Mauvaise.SL1 manual removal.

If you do not fulfill the above criteria then manual removal could be a risky. It is probably best if you to choose Automatic Malware Removal Tool to detect and remove Trojan.Mauvaise.SL1 automatically which is completely safely and professional way doing it.

 Part 1 – Start PC In Safe Mode With Networking 

  • Press “Windows Key + R” buttons together on your keyboard.


  • Run box will appear, type “msconfig” and hit enter button.


  • System configuration box will appear on your screen.


  • Go to boot tab and select Safe boot then hit enter button.


 Part 2 – Kill Malicious Process From Task Manager 

  • Press “Windows Key + R” buttons together on your keyboard.


  • Run box will appear, type “taskmgr” and hit enter button to open Task manager.


  • Find malicious process related to Trojan.Mauvaise.SL1 and right click on it then click End process.

Block Trojan.Mauvaise.SL1 in Task Manager

 Part 3 – Remove Trojan.Mauvaise.SL1 From Control Panel 

First you should check the Control Panel of your computer and remove any unwanted program that you have not installed by yourself. It might be possible that Trojan.Mauvaise.SL1 virus is listed in Control Panel with any other random name to avoid its removal.

Remove Trojan.Mauvaise.SL1 From Windows Vista/7

  • Click on Start menu and select Control Panel.


  • Select Uninstall a program option under Programs menu.


  • Find and remove all unwanted and malicious programs.

Remove Trojan.Mauvaise.SL1 From Windows 7

Remove Trojan.Mauvaise.SL1 From Windows 8/10

  • Click “Windows + R” button together to open run box.


  • Type Control Panel in the Run Box then click OK.


  • Select Uninstall a program option under Programs menu.


  • Find and remove all unwanted and harmful programs.

Remove Trojan.Mauvaise.SL1 From Windows 10

 Part 4 – Remove Trojan.Mauvaise.SL1 From Browser 

Remove From Google Chrome

  • Open Chrome browser > Click on Menu > select More Tools > Choose Extensions.
  • Find and remove malicious extension from chrome.

Remove Trojan.Mauvaise.SL1 From Chrome

Remove From Mozilla Firefox

  • Open Mozilla Firefox > Click on Menu > select Add-ons.
  • Find and remove malicious add-ons from Firefox.

Remove Trojan.Mauvaise.SL1 From Firefox

Remove From MS Edge

  • Open Edge browser > Click on More option > select settings > Choose Extensions.
  • Click on unwanted extension and hit uninstall button.

Remove Trojan.Mauvaise.SL1 From Edge

Remove From Internet Explorer

  • Open Internet Explorer > Click on Gear icon > choose Manage Add-ons.
  • Click on unwanted extension and press disable button.

Remove Trojan.Mauvaise.SL1 From Internet Explorer

 Part 5 – Remove Trojan.Mauvaise.SL1 From Registry Editor 

  • Press “Windows Key + R” buttons together on your keyboard.


  • Run box will appear, type “regedit” and hit enter button.


  • Windows Registry editor will appear on your screen.


  • Find and remove Trojan.Mauvaise.SL1 related keys.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe “Debugger” = ‘svchost.exe’

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe “Debugger” = ‘svchost.exe’


HKEY_LOCAL_MACHINE\SOFTWARE\Uninstall\”virus name”

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “WarnOnHTTPSToHTTPRedirect” = ’0′

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “xas”


 Tips To Prevent Malware Like Trojan.Mauvaise.SL1 In Future 

  • You should use a powerful and reliable anti-virus program and scan your computer regularly.
  • Check Windows Firewall security and turn it on for the real time safety form malware and viruses.
  • You must avoid visiting to malicious, porn and torrent websites to stay safe online.
  • Avoid downloading any free or unknown program from any unreliable website or link.
  • Say a big No to download cracked software, themes and wallpaper, screensaver similar products.
  • Do not click on any misleading advertisement that flash on your browser when you go online.
  • Keep your Windows OS and other software up to date to avoid vulnerabilities.
  • Download updates and software patches only from official and trusted websites.
  • Always create a system restore point when you PC is running fine for security purpose.
  • Keep backup of all your important files and data to avoid any kind of data loss situation.

Trojan.Mauvaise.SL1 Download SpyHunter 5 Anti-Malware Now

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