TrojanDropper:JS/Nemucod!MSR — Virus Removal Guide

Written by Wilbur Woodham

The TrojanDropper:JS/Nemucod!MSR notification means that your PC has a problem. Giving it a go may end up with really bad consequences. Nemucod is a malware that aims at opening your PC to further threats.

Most of of the modern virus samples are complex, and can download other viruses. TrojanDropper:JS/Nemucod!MSR concentrates on the latter – bringing other threats to the infected system. Nemucod can inject spyware, stealer or a backdoor in a single command. Seeing this detection means that you must to perform the malware removal as fast as you can.

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TrojanDropper:JS/Nemucod!MSR Detection Overview

The TrojanDropper:JS/Nemucod!MSR detection you can see in the lower right corner is displayed to you by Microsoft Defender. That anti-malware application is good at scanning, however, prone to be generally unreliable. It is unprotected to malware attacks, it has a glitchy user interface and problematic malware clearing capabilities. Thus, the pop-up which states about the Nemucod is rather just a notification that Defender has actually detected it. To remove it, you will likely need to make use of a separate anti-malware program.

TrojanDropper:JS/Nemucod!MSR found

Microsoft Defender: “TrojanDropper:JS/Nemucod!MSR”

The exact TrojanDropper:JS/Nemucod!MSR virus is a very unpleasant thing. It digs inside of your PC disguised as a part of something legitimate, or as a part of the application you downloaded at a forum. Then, it makes everything to make your system weaker. At the end of this “party”, it injects other viruses – ones which are wanted by crooks who manage this malware. Hence, it is almost impossible to predict the effects from Nemucod actions. And the unpredictability is one of the baddest 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:

NameNemucod Trojan
DetectionTrojanDropper:JS/Nemucod!MSR
DetailsNemucod tool that looks legitimate but can take control of your computer.
Fix ToolSee If Your System Has Been Affected by Nemucod Trojan

Is TrojanDropper:JS/Nemucod!MSR dangerous?

As I have specified before, non-harmful malware does not exist. And TrojanDropper:JS/Nemucod!MSR is not an exclusion. This virus changes the system configurations, alters the Group Policies and Windows registry. All of these elements are vital for correct system operating, even in case when we are not talking about PC safety. Therefore, the malware which Nemucod carries, or which it will inject after some time, will try to get maximum profit from you. Cyber burglars can grab your personal data, and then sell it on the Darknet. Using adware and browser hijacker functionality, embedded in TrojanDropper:JS/Nemucod!MSR malware, 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 not easy to trace the sources of malware on your computer. Nowadays, things are mixed up, and spreading tactics chosen by adware 5 years ago may be used by spyware nowadays. But if we abstract from the exact spreading method and will think of why it has success, the answer will be really basic – low level of cybersecurity awareness. Individuals click on promotions on weird websites, open the pop-ups they receive in their web browsers, call the “Microsoft tech support” assuming that the weird banner that says about malware is true. It is important to know what is legitimate – to avoid misconceptions when attempting to find out a virus.

Microsoft tech support scam

The example of Microsoft Tech support scam banner

Nowadays, there are two of the most extensive ways of malware distribution – bait emails and also injection into a hacked program. While the first one is not so easy to evade – you need to know a lot to understand a fake – the 2nd one is very easy to solve: just do not utilize hacked applications. Torrent-trackers and various other sources of “free” applications (which are, in fact, paid, but with a disabled license checking) are really a giveaway place of malware. And TrojanDropper:JS/Nemucod!MSR is just one of them.

Remove Nemucod with Gridinsoft Anti-Malware

We have also been using this software on our systems ever since, and it has always been successful in detecting viruses. It has blocked the most common Trojans as shown from our tests with the software, and we assure you that it can remove Nemucod as well as other malware hiding on your computer.

Gridinsoft Anti-Malware - Main Screen

To use Gridinsoft for remove malicious threats, follow the steps below:

1. Begin by downloading Gridinsoft Anti-Malware, accessible via the blue button below or directly from the official website gridinsoft.com.

2.Once the Gridinsoft setup file (setup-gridinsoft-fix.exe) is downloaded, execute it by clicking on the file.

setup-gridinsoft-fix.exe

3.Follow the installation setup wizard's instructions diligently.

Gridinsoft Setup Wizard

4. Access the "Scan Tab" on the application's start screen and launch a comprehensive "Full Scan" to examine your entire computer. This inclusive scan encompasses the memory, startup items, the registry, services, drivers, and all files, ensuring that it detects malware hidden in all possible locations.

Scan for Nemucod Trojans

Be patient, as the scan duration depends on the number of files and your computer's hardware capabilities. Use this time to relax or attend to other tasks.

5. Upon completion, Anti-Malware will present a detailed report containing all the detected malicious items and threats on your PC.

The Nemucod was Found

6. Select all the identified items from the report and confidently click the "Clean Now" button. This action will safely remove the malicious files from your computer, transferring them to the secure quarantine zone of the anti-malware program to prevent any further harmful actions.

The Nemucod has been removed

8. If prompted, restart your computer to finalize the full system scan procedure. This step is crucial to ensure thorough removal of any remaining threats. After the restart, Gridinsoft Anti-Malware will open and display a message confirming the completion of the scan.

Remember Gridinsoft offers a 6-day free trial. This means you can take advantage of the trial period at no cost to experience the full benefits of the software and prevent any future malware infections on your system. Embrace this opportunity to fortify your computer's security without any financial commitment.

Trojan Killer for “Nemucod” removal on locked PC

In situations where it becomes impossible to download antivirus applications directly onto the infected computer due to malware blocking access to websites, an alternative solution is to utilize the Trojan Killer application.

Trojan Killer - Main View

There is a really little number of security tools that are able to be set up on the USB drives, and antiviruses that can do so in most cases require to obtain quite an expensive license. For this instance, I can recommend you to use another solution of GridinSoft - Trojan Killer Portable. It has a 14-days cost-free trial mode that offers the entire features of the paid version. This term will definitely be 100% enough to wipe malware out.

Trojan Killer is a valuable tool in your cybersecurity arsenal, helping you to effectively remove malware from infected computers. Now, we will walk you through the process of using Trojan Killer from a USB flash drive to scan and remove malware on an infected PC. Remember, always obtain permission to scan and remove malware from a computer that you do not own.

Step 1: Download & Install Trojan Killer on a Clean Computer:

1. Go to the official GridinSoft website (gridinsoft.com) and download Trojan Killer to a computer that is not infected.

Download Trojan Killer

2. Insert a USB flash drive into this computer.

3. Install Trojan Killer to the "removable drive" following the on-screen instructions.

Install Trojan Killer to Removable Drive

4. Once the installation is complete, launch Trojan Killer.

Step 2: Update Signature Databases:

5. After launching Trojan Killer, ensure that your computer is connected to the Internet.

6. Click "Update" icon to download the latest signature databases, which will ensure the tool can detect the most recent threats.

Click Update Button

Step 3: Scan the Infected PC:

7. Safely eject the USB flash drive from the clean computer.

8. Boot the infected computer to the Safe Mode.

9. Insert the USB flash drive.

10. Run tk.exe

11. Once the program is open, click on "Full Scan" to begin the malware scanning process.

Searching Nemucod Virus

Step 4: Remove Found Threats:

12. After the scan is complete, Trojan Killer will display a list of detected threats.

Searching Nemucod Finished

13. Click on "Cure PC!" to remove the identified malware from the infected PC.

14. Follow any additional on-screen prompts to complete the removal process.

Restart needed

Step 5: Restart Your Computer:

15. Once the threats are removed, click on "Restart PC" to reboot your computer.

16. Remove the USB flash drive from the infected computer.

Congratulations on effectively removing Nemucod and the concealed threats from your computer! You can now have peace of mind, knowing that they won't resurface again. Thanks to Gridinsoft's capabilities and commitment to cybersecurity, your system is now protected.

How to Remove TrojanDropper:JS/Nemucod!MSR Malware

Name: TrojanDropper:JS/Nemucod!MSR

Description: TrojanDropper:JS/Nemucod!MSR is a detection of Microsoft Defender that points at the active downloader trojan in your system. This malware can introduce various other threats in a finger snap, which puts your system in a huge danger. To remove Nemucod!MSR from your device, I recommend scanning it with GridinSoft Anti-Malware.

Operating System: Windows

Application Category: Trojan Dropper

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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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