Trojan:JS/Mountsi.B!ml — Mountsi Trojan Removal Guide

Written by Wilbur Woodham
If you spectate the alert of Trojan:JS/Mountsi.B!ml detection, it looks like that your PC has a problem. All viruses are dangerous, without any exceptions. Mountsi is a malicious software that aims at exposing your PC to further threats. Most of of the modern virus samples are complex, and can inject various other viruses. Being infected with the Trojan:JS/Mountsi.B!ml malware often means getting a thing which is able act like spyware or stealer, downloader, and a backdoor. Seeing this detection means that you need to perform the removal as fast as you can.
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Any malware exists with the only target – make money on you1. And the developers of these things are not thinking of morality – they use all possible methods. Stealing your personal data, receiving the payments for the ads you watch for them, exploiting your hardware to mine cryptocurrencies – that is not the complete list of what they do. Do you like to be a riding steed? That is a rhetorical question.

What does the notification with Trojan:JS/Mountsi.B!ml detection mean?

The Trojan:JS/Mountsi.B!ml detection you can see in the lower right side is displayed to you by Microsoft Defender. That anti-malware software is quite OK at scanning, however, prone to be generally unstable. It is prone to malware invasions, it has a glitchy user interface and problematic malware clearing features. Therefore, the pop-up which states about the Mountsi is just an alert that Defender has found it. To remove it, you will likely need to make use of a separate anti-malware program.

Trojan:JS/Mountsi.B!ml found

Microsoft Defender: “Trojan:JS/Mountsi.B!ml”

The exact Trojan:JS/Mountsi.B!ml infection is a very nasty thing. It sits into your system disguised as a part of something benevolent, or as a piece of the application you have got on a forum. After that, it makes all possible steps to weaken your system. At the end of this “party”, it injects other viruses – ones which are choosen by crooks who manage this malware. Hence, it is impossible to predict the effects from Mountsi actions. And the unpredictability is one of the most unwanted things when we are talking about malware. That’s why it is rather not to choose at all, and don’t let the malware to complete its task.

Threat Summary:

NameMountsi Trojan
DetectionTrojan:JS/Mountsi.B!ml
DetailsMountsi tool that looks legitimate but can take control of your computer.
Fix ToolSee If Your System Has Been Affected by Mountsi Trojan

Is Trojan:JS/Mountsi.B!ml dangerous?

As I have stated previously, non-harmful malware does not exist. And Trojan:JS/Mountsi.B!ml is not an exclusion. This malware changes the system settings, modifies the Group Policies and registry. All of these components are crucial for proper system functioning, even in case when we are not talking about system security. Therefore, the virus which Mountsi contains, or which it will inject later, will try to get maximum revenue from you. Crooks can grab your data, and then sell it at the black market. Using adware and browser hijacker functionality, embedded in Trojan:JS/Mountsi.B!ml malware, they can make money by showing you the banners. Each view gives them a penny, but 100 views per day = $1. 1000 victims who watch 100 banners per day – $1000. Easy math, but sad conclusions. It is a bad choice to be a donkey for crooks.

How did I get this virus?

It is hard to trace the origins of malware on your PC. Nowadays, things are mixed up, and distribution ways used by adware 5 years ago can be used by spyware nowadays. But if we abstract from the exact spreading way and will think of why it has success, the explanation will be quite uncomplicated – low level of cybersecurity knowledge. People click on ads on weird websites, open the pop-ups they get in their web browsers, call the “Microsoft tech support” thinking that the odd banner that states about malware is true. It is very important to recognize what is legitimate – to prevent misconceptions when trying to determine a virus.

Microsoft tech support scam

Microsoft tech support scam page

Nowadays, there are two of the most common methods of malware spreading – lure e-mails and also injection into a hacked program. While the first one is not so easy to avoid – you should know a lot to understand a fake – the 2nd one is very easy to solve: just don’t use hacked programs. Torrent-trackers and various other sources of “totally free” applications (which are, in fact, paid, but with a disabled license checking) are just a giveaway point of malware. And Trojan:JS/Mountsi.B!ml is simply within them.

How to remove the Trojan:JS/Mountsi.B!ml from my PC?

Trojan:JS/Mountsi.B!ml malware is extremely difficult to remove by hand. It stores its data in numerous places throughout the disk, and can restore itself from one of the elements. Additionally, various modifications in the windows registry, networking configurations and Group Policies are quite hard to find and return to the original. It is better to use a special app – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the most ideal for malware elimination goals.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its databases updated nearly every hour. Furthermore, it does not have such bugs and exposures as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware suitable for clearing away malware of any form.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of Mountsi the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
How to Remove Trojan:JS/Mountsi.B!ml Malware

Name: Trojan:JS/Mountsi.B!ml

Description: If you have seen a message showing the “Trojan:JS/Mountsi.B!ml found”, it seems that your system is in trouble. The Mountsi virus was detected, but to remove it, you need to use a security tool. Windows Defender, which has shown you this message, has detected the malware. However, Defender is not a reliable thing - it is prone to malfunction when it comes to malware removal. Getting the Trojan:JS/Mountsi.B!ml malware on your PC is an unpleasant thing, and removing it as soon as possible must be your primary task.

Operating System: Windows

Application Category: Trojan

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References

  1. Read about malware types on GridinSoft Threat encyclopedia.

About the author

Wilbur Woodham

I was a technical writer from early in my career, and consider IT Security one of my foundational skills. I’m sharing my experience here, and I hope you find it useful.

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