TrojanDownloader:MSIL/PureCrypter.C!MTB — PureCrypter Trojan Removal Guide

Written by Wilbur Woodham
TrojanDownloader:MSIL/PureCrypter.C!MTB detection stands for a downloader trojan active in your system. This malware aims at infecting your computer with various other malware.

TrojanDownloader:MSIL/PureCrypter.C!MTB malware is known for being a precursor to ransomware infections. It disables a row of security elements on your PC, making it vulnerable. Then, it connects to the C2 server and pulls the payload. As I’ve said, it prefers ransomware, but nothing stops it from bringing spyware or stealer malware.

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Any kind of malware exists with the only target – gain money on you1. And the programmers of these things are not thinking of morality – they use all possible ways. Taking your personal data, receiving the comission for the promotions you watch for them, utilizing your CPU and GPU to mine cryptocurrencies – that is not the full list of what they do. Do you want to be a riding steed? That is a rhetorical question.

What does the notification with TrojanDownloader:MSIL/PureCrypter.C!MTB detection mean?

The TrojanDownloader:MSIL/PureCrypter.C!MTB detection you can see in the lower right corner is shown to you by Microsoft Defender. That anti-malware program is pretty good at scanning, however, prone to be mainly unreliable. It is prone to malware attacks, it has a glitchy interface and bugged malware removal capabilities. Thus, the pop-up which states concerning the PureCrypter is rather just an alert that Defender has spotted it. To remove it, you will likely need to use a separate anti-malware program.

TrojanDownloader:MSIL/PureCrypter.C!MTB found

Microsoft Defender: “TrojanDownloader:MSIL/PureCrypter.C!MTB”

The exact TrojanDownloader:MSIL/PureCrypter.C!MTB infection is a very undesirable thing. It is present into your system under the guise of something legitimate, or as a piece of the program you downloaded at a forum. Then, it makes all possible steps to make your system weaker. At the end of this “party”, it injects other malicious things – ones which are wanted by cyber burglars who control this virus. Hence, it is almost impossible to predict the effects from PureCrypter actions. And the unpredictability is one of the baddest things when it comes to malware. That’s why it is better not to choose at all, and don’t let the malware to complete its task.

Threat Summary:

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

Is TrojanDownloader:MSIL/PureCrypter.C!MTB dangerous?

As I have actually pointed out before, non-harmful malware does not exist. And TrojanDownloader:MSIL/PureCrypter.C!MTB is not an exclusion. This malware modifies the system settings, modifies the Group Policies and Windows registry. All of these things are critical for correct system operating, even when we are not talking about Windows security. Therefore, the malware which PureCrypter carries, or which it will inject later, will squeeze out maximum revenue from you. Crooks can grab your data, and then sell it at the black market. Using adware and browser hijacker functions, embedded in TrojanDownloader:MSIL/PureCrypter.C!MTB virus, they can make revenue by showing you the advertisements. 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 distribution tactics used by adware 5 years ago can be used by spyware nowadays. But if we abstract from the exact distribution method and will think about why it works, the reply will be quite basic – low level of cybersecurity knowledge. Individuals click on ads on weird sites, click the pop-ups they receive in their browsers, call the “Microsoft tech support” assuming that the strange banner that states about malware is true. It is very important to recognize what is legitimate – 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 distribution – bait emails and injection into a hacked program. While the first one is not so easy to avoid – you must know a lot to understand a fake – the second one is easy to address: just don’t use hacked applications. Torrent-trackers and other providers of “totally free” applications (which are, in fact, paid, but with a disabled license checking) are really a giveaway point of malware. And TrojanDownloader:MSIL/PureCrypter.C!MTB is just one of them.

How to remove the TrojanDownloader:MSIL/PureCrypter.C!MTB from my PC?

TrojanDownloader:MSIL/PureCrypter.C!MTB malware is very hard to remove by hand. It places its documents in numerous places throughout the disk, and can recover itself from one of the parts. In addition, a number of changes in the registry, networking setups and also Group Policies are really hard to identify and return to the original. It is far better to make use of a special program – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the best for virus removal goals.

Why GridinSoft Anti-Malware? It is very light-weight and has its detection databases updated nearly every hour. Additionally, it does not have such problems and weakness as Microsoft Defender does. The combination of these details 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 PureCrypter the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
How to Remove TrojanDownloader:MSIL/PureCrypter.C!MTB Malware

Name: TrojanDownloader:MSIL/PureCrypter.C!MTB

Description: TrojanDownloader:MSIL/PureCrypter.C!MTB is a dangerous Downloader Trojan that cooperates with ransomware. It weakens your system, so it will not cause any drag to ransomware injection, and then brings the payload. This malware can also deliver different spyware strings.

Operating System: Windows

Application Category: Trojan

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  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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