Written by Robert Bailey
If you spectate the alert of PWS:Win32/VidarStealer.MR!MTB detection, it seems that your system has a problem. All viruses are dangerous, without any exceptions. Vidar is a malicious application that aims at collecting sensitive information of yours. The majority of the modern malware samples are complex, and can inject other viruses. Being infected with the PWS:Win32/VidarStealer.MR!MTB malware often equals to 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 malware removal as fast as you can.
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Any malware exists with the only target – make money on you1. And the programmers of these things are not thinking of morality – they utilize all available tactics. Taking your private data, receiving the payments for the promotions you watch for them, exploiting your CPU and GPU to mine cryptocurrencies – that is not the complete list of what they do. Do you like to be a riding equine? That is a rhetorical question.

What does the notification with PWS:Win32/VidarStealer.MR!MTB detection mean?

The PWS:Win32/VidarStealer.MR!MTB detection you can see in the lower right side is displayed to you by Microsoft Defender. That anti-malware application is good at scanning, however, prone to be generally unstable. It is vulnerable to malware invasions, it has a glitchy interface and problematic malware removal capabilities. Thus, the pop-up which states concerning the Vidar is just an alert that Defender has actually spotted it. To remove it, you will likely need to make use of another anti-malware program.

PWS:Win32/VidarStealer.MR!MTB found

Microsoft Defender: “PWS:Win32/VidarStealer.MR!MTB”

The exact PWS:Win32/VidarStealer.MR!MTB virus is a very unpleasant thing. It is present into your system disguised as a part of something legitimate, or as a piece of the tool you downloaded from a forum. Therefore, it makes all possible steps to make your system weaker. At the end of this “party”, it injects other viruses – ones which are choosen by cybercriminals who control this virus. Hence, it is impossible to predict the effects from Vidar 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 let the malware to complete its task.

Threat Summary:

NameVidar Trojan
DetailsVidar tool that looks legitimate but can take control of your computer.
Fix ToolSee If Your System Has Been Affected by Vidar Trojan
Other names of PWS:Win32/VidarStealer.MR!MTB
K7AntiVirusTrojan ( 0055b2e51 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
CrowdStrikewin/malicious_confidence_100% (W)
K7GWTrojan ( 0055b2e51 )
ESET-NOD32a variant of Win32/Kryptik.GYDV
AvastWin32:TrojanX-gen [Trj]
SophosMal/Generic-R + Mal/GandCrab-G
EmsisoftGen:Heur.Mint.Titirez.pu0@QmKtkwk (B)
MAXmalware (ai score=89)
RisingTrojan.Generic@ML.100 (RDML:bo7wpvFV5jWhdFZp9cAlZQ)
AVGWin32:TrojanX-gen [Trj]

Is PWS:Win32/VidarStealer.MR!MTB dangerous?

As I have actually specified before, non-harmful malware does not exist. And PWS:Win32/VidarStealer.MR!MTB is not an exclusion. This virus modifies the system configurations, modifies the Group Policies and Windows registry. All of these elements are crucial for proper system operating, even in case when we are not talking about PC safety. Therefore, the virus which Vidar contains, or which it will download after some time, will try to get maximum profit from you. Cybercriminals can steal your personal data, and then sell it at the black market, or use it for other attacks or even to blackmail you.

How did I get this virus?

It is hard to line the origins of malware on your PC. Nowadays, things are mixed up, and spreading ways utilized by adware 5 years ago can be utilized by spyware these days. However, if we abstract from the exact distribution tactic and will think of why it works, the explanation will be quite simple – low level of cybersecurity understanding. Individuals click on promotions on strange sites, open the pop-ups they get in their browsers, call the “Microsoft tech support” thinking that the odd banner that states about malware is true. It is very important to understand what is legit – to stay away from misunderstandings when attempting to figure out a virus.

Microsoft Tech Support Scam

Microsoft Tech Support Scam

Nowadays, there are two of the most common methods of malware spreading – lure emails and also injection into a hacked program. While the first one is not so easy to avoid – you need to know a lot to recognize a counterfeit – the 2nd one is easy to handle: just do not utilize hacked applications. 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 PWS:Win32/VidarStealer.MR!MTB is just amongst them.

How to remove the PWS:Win32/VidarStealer.MR!MTB from my PC?

PWS:Win32/VidarStealer.MR!MTB malware is very hard to erase by hand. It stores its files in several locations throughout the disk, and can get back itself from one of the parts. In addition, various alterations in the windows registry, networking settings and Group Policies are pretty hard to find and change to the initial. It is better to use a special program – exactly, an anti-malware app. GridinSoft Anti-Malware will fit the most ideal for malware removal objectives.

Why GridinSoft Anti-Malware? It is very light-weight and has its detection databases updated practically every hour. Furthermore, it does not have such bugs and exploits as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware suitable for taking out 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 Vidar the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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  1. Read about malware types on GridinSoft Threat encyclopedia.

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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