TrojanDownloader:Script/Nemucod.JAC — Nemucod Trojan Removal Guide

Written by Wilbur Woodham
If you spectate the notification of TrojanDownloader:Script/Nemucod.JAC detection, it looks like that your computer has a problem. All viruses are dangerous, with no deviations. Nemucod is a malicious software that aims at opening your system to further malware injection. The majority of the modern virus samples are complex, and can download various other viruses. Being infected with the TrojanDownloader:Script/Nemucod.JAC virus often equals to getting a thing which can 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 kind of malware exists with the only target – generate profits on you1. And the programmers of these things are not thinking of morality – they use all possible ways. Taking your private data, receiving the payments for the banners you watch for them, utilizing your CPU and GPU to mine cryptocurrencies – that is not the complete list of what they do. Do you like to be a riding steed? That is a rhetorical question.

What does the notification with TrojanDownloader:Script/Nemucod.JAC detection mean?

The TrojanDownloader:Script/Nemucod.JAC 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 unstable. It is unprotected to malware attacks, it has a glitchy interface and bugged malware clearing capabilities. For this reason, the pop-up which states concerning the Nemucod is just an alert that Defender has found it. To remove it, you will likely need to make use of another anti-malware program.

TrojanDownloader:Script/Nemucod.JAC found

Microsoft Defender: “TrojanDownloader:Script/Nemucod.JAC”

The exact TrojanDownloader:Script/Nemucod.JAC virus is a really nasty thing. It sits into your PC disguised as a part of something normal, or as a part of the app 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 crooks who manage this malware. Hence, it is likely impossible to predict the effects from Nemucod 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:

NameNemucod Trojan
DetectionTrojanDownloader:Script/Nemucod.JAC
DetailsNemucod tool that looks legitimate but can take control of your computer.
Fix ToolSee If Your System Has Been Affected by Nemucod Trojan

Is TrojanDownloader:Script/Nemucod.JAC dangerous?

As I have actually stated before, non-harmful malware does not exist. And TrojanDownloader:Script/Nemucod.JAC is not an exception. This malware alters the system settings, alters the Group Policies and Windows registry. All of these elements are critical for proper system operating, even when we are not talking about system safety. Therefore, the malware which Nemucod carries, or which it will download later, will try to get maximum revenue from you. Crooks can steal your personal information, and then sell it at the black market. Using adware and browser hijacker functionality, embedded in TrojanDownloader:Script/Nemucod.JAC malware, they can make revenue 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 origins of malware on your PC. Nowadays, things are mixed, and spreading ways used by adware 5 years ago can be used by spyware nowadays. But if we abstract from the exact distribution way and will think of why it works, the reply will be pretty basic – low level of cybersecurity understanding. Individuals press on ads on strange websites, click the pop-ups they receive in their browsers, call the “Microsoft tech support” thinking that the odd banner that says about malware is true. It is very important to know what is legitimate – to stay away from misconceptions when trying to determine a virus.

Microsoft Tech Support Scam

Microsoft Tech Support Scam

Nowadays, there are two of the most extensive methods of malware spreading – bait e-mails and injection into a hacked program. While the first one is not so easy to avoid – you should know a lot to understand a fake – the second one is very easy to address: just don’t use cracked applications. Torrent-trackers and various other sources of “free” applications (which are, exactly, paid, but with a disabled license checking) are just a giveaway place of malware. And TrojanDownloader:Script/Nemucod.JAC is simply one of them.

How to remove the TrojanDownloader:Script/Nemucod.JAC from my PC?

TrojanDownloader:Script/Nemucod.JAC malware is incredibly hard to delete manually. It places its files in several places throughout the disk, and can recover itself from one of the parts. In addition, a range of changes in the registry, networking setups and also Group Policies are quite hard to discover and change to the initial. It is better to make use of a specific tool – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the best for virus removal goals.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its databases updated practically every hour. Moreover, it does not have such problems and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware perfect for getting rid of malware of any type.

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 Nemucod the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
How to Remove TrojanDownloader:Script/Nemucod.JAC Malware

Name: TrojanDownloader:Script/Nemucod.JAC

Description: If you have seen a message showing the “TrojanDownloader:Script/Nemucod.JAC found”, it seems that your system is in trouble. The Nemucod 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 TrojanDownloader:Script/Nemucod.JAC 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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