Trojan:PowerShell/Medesvi.B — Medesvi Trojan Removal Guide

Written by Wilbur Woodham
If you spectate the notification of Trojan:PowerShell/Medesvi.B detection, it appears that your PC has a problem. All viruses are dangerous, without any exceptions. Medesvi is a malicious software that aims at opening your system to further malware injection. The majority of the modern virus variants are complex, and can inject other viruses. Getting the Trojan:PowerShell/Medesvi.B virus often means getting a thing which is able act like spyware or stealer, downloader, and a backdoor. Seeing this detection means that you must to perform the removal as fast as you can.
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Any type of malware exists with the only target – make money on you1. And the programmers of these things are not thinking of ethicality – they use all possible tactics. Grabbing your private data, receiving the payments for the ads you watch for them, utilizing your system components to mine cryptocurrencies – that is not the complete list of what they do. Do you want to be a riding horse? That is a rhetorical question.

What does the pop-up with Trojan:PowerShell/Medesvi.B detection mean?

The Trojan:PowerShell/Medesvi.B detection you can see in the lower right corner is displayed to you by Microsoft Defender. That anti-malware program is good at scanning, but prone to be basically unreliable. It is defenseless to malware invasions, it has a glitchy user interface and problematic malware removal capabilities. Hence, the pop-up which states concerning the Medesvi is rather just an alert that Defender has actually identified it. To remove it, you will likely need to make use of a separate anti-malware program.

Trojan:PowerShell/Medesvi.B found

Microsoft Defender: “Trojan:PowerShell/Medesvi.B”

The exact Trojan:PowerShell/Medesvi.B virus is a very nasty thing. It digs into your system disguised as a part of something normal, or as a piece of the tool you have got on a forum. Therefore, it makes everything to make your system weaker. At the end of this “party”, it injects other viruses – ones which are choosen by cyber burglars who manage this virus. Hence, it is likely impossible to predict the effects from Medesvi actions. And the unpredictability is one of the baddest things when we are talking about malware. That’s why it is rather not to choose at all, and don’t give it even a single chance to complete its task.

Threat Summary:

Name Medesvi Trojan
Detection Trojan:PowerShell/Medesvi.B
Details Medesvi tool that looks legitimate but can take control of your computer.
Fix Tool See If Your System Has Been Affected by Medesvi Trojan

Is Trojan:PowerShell/Medesvi.B dangerous?

As I have actually specified , non-harmful malware does not exist. And Trojan:PowerShell/Medesvi.B is not an exclusion. This virus modifies the system configurations, alters the Group Policies and registry. All of these elements are vital for correct system functioning, even in case when we are not talking about system safety. Therefore, the virus which Medesvi contains, or which it will download after some time, will squeeze out maximum profit from you. Crooks can steal your personal data, and then sell it at the black market. Using adware and browser hijacker functionality, embedded in Trojan:PowerShell/Medesvi.B malware, they can make money by showing you the ads. 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 line the sources of malware on your computer. Nowadays, things are mixed up, and spreading tactics 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 works, the answer will be pretty uncomplicated – low level of cybersecurity understanding. People click on advertisements on strange sites, open the pop-ups they receive in their web browsers, call the “Microsoft tech support” assuming that the odd banner that states about malware is true. It is essential to recognize what is legit – to avoid misunderstandings when trying to identify a virus.

Microsoft tech support scam

The example of Microsoft Tech support scam banner

Nowadays, there are two of the most widespread tactics of malware distribution – lure e-mails and injection into a hacked program. While the first one is not so easy to evade – you need to know a lot to recognize a counterfeit – the second one is simple to get rid of: just do not use cracked apps. Torrent-trackers and other providers of “totally free” applications (which are, exactly, paid, but with a disabled license checking) are really a giveaway place of malware. And Trojan:PowerShell/Medesvi.B is simply one of them.

How to remove the Trojan:PowerShell/Medesvi.B from my PC?

Trojan:PowerShell/Medesvi.B malware is extremely difficult to eliminate by hand. It puts its data in multiple locations throughout the disk, and can get back itself from one of the elements. Additionally, a range of modifications in the windows registry, networking configurations and Group Policies are really hard to find and return to the initial. It is better to utilize a specific tool – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the best for malware elimination objectives.

Why GridinSoft Anti-Malware? It is really lightweight and has its databases updated almost every hour. Moreover, it does not have such problems and exposures as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware suitable for getting rid of malware of any kind.

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 Medesvi the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
How to Remove Trojan:PowerShell/Medesvi.B Malware

Name: Trojan:PowerShell/Medesvi.B

Description: If you have seen a message showing the “Trojan:PowerShell/Medesvi.B found”, it seems that your system is in trouble. The Medesvi 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:PowerShell/Medesvi.B 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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