Trojan:PowerShell/CoinMiner.C — CoinMiner Trojan Removal Guide

Written by Wilbur Woodham
If you spectate the alert of Trojan:PowerShell/CoinMiner.C detection, it seems that your system has a problem. All viruses are dangerous, without any exceptions. CoinMiner is a malicious application that aims at opening your computer to further malware injection. The majority of the modern virus variants are complex, and can download other viruses. Getting the Trojan:PowerShell/CoinMiner.C virus 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 type of malware exists with the only target – make money on you1. And the programmers of these things are not thinking about ethicality – they use all possible ways. Stealing your private data, getting the comission for the banners you watch for them, exploiting your system components 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 Trojan:PowerShell/CoinMiner.C detection mean?

The Trojan:PowerShell/CoinMiner.C detection you can see in the lower right side is demonstrated to you by Microsoft Defender. That anti-malware software is pretty good at scanning, however, prone to be generally unreliable. It is defenseless to malware invasions, it has a glitchy user interface and problematic malware removal features. Therefore, the pop-up which says concerning the CoinMiner is simply a notification that Defender has recognized it. To remove it, you will likely need to use a separate anti-malware program.

Trojan:PowerShell/CoinMiner.C found

Microsoft Defender: “Trojan:PowerShell/CoinMiner.C”

The exact Trojan:PowerShell/CoinMiner.C virus is a really undesirable thing. It sits into your PC disguised as a part of something benevolent, or as a piece of the app you downloaded at a forum. Therefore, it makes everything to weaken your system. At the end of this “party”, it injects other malicious things – ones which are wanted by cyber burglars who manage this virus. Hence, it is likely impossible to predict the effects from CoinMiner actions. And the unpredictability is one of the most upleasant things when it comes to malware. That’s why it is rather not to choose at all, and don’t let the malware to complete its task.

Threat Summary:

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

Is Trojan:PowerShell/CoinMiner.C dangerous?

As I have stated before, non-harmful malware does not exist. And Trojan:PowerShell/CoinMiner.C is not an exclusion. This malware alters the system setups, modifies the Group Policies and Windows registry. All of these things are crucial for correct system functioning, even when we are not talking about PC security. Therefore, the malware which CoinMiner contains, or which it will download later, will try to get maximum revenue from you. Cybercriminals can grab your personal data, and then push it on the Darknet. Using adware and browser hijacker functionality, built in Trojan:PowerShell/CoinMiner.C virus, 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 not easy to line the sources of malware on your computer. Nowadays, things are mixed up, and spreading ways chosen by adware 5 years ago can be used by spyware these days. But if we abstract from the exact distribution tactic and will think about why it has success, the answer will be very uncomplicated – low level of cybersecurity knowledge. Individuals click on promotions on strange sites, click the pop-ups they get in their browsers, call the “Microsoft tech support” assuming that the strange banner that states about malware is true. It is essential to recognize what is legit – to stay away from misconceptions when attempting to determine a virus.

Microsoft Tech Support Scam

Microsoft Tech Support Scam

Nowadays, there are two of the most widespread tactics of malware distribution – lure emails and also injection into a hacked program. While the first one is not so easy to evade – you must know a lot to recognize a counterfeit – the second one is easy to address: just do not use hacked programs. Torrent-trackers and other providers of “totally free” applications (which are, exactly, paid, but with a disabled license checking) are just a giveaway point of malware. And Trojan:PowerShell/CoinMiner.C is simply one of them.

How to remove the Trojan:PowerShell/CoinMiner.C from my PC?

Trojan:PowerShell/CoinMiner.C malware is very difficult to remove manually. It places its documents in numerous locations throughout the disk, and can get back itself from one of the parts. Additionally, various modifications in the registry, networking configurations and also Group Policies are really hard to find and change to the initial. It is better to utilize a specific program – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the most ideal for malware elimination goals.

Why GridinSoft Anti-Malware? It is very light-weight and has its databases updated almost every hour. Furthermore, it does not have such problems and vulnerabilities as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware suitable for taking out 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 CoinMiner the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
How to Remove Trojan:PowerShell/CoinMiner.C Malware

Name: Trojan:PowerShell/CoinMiner.C

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