NESA VIRUS FILE (.NESA RANSOMWARE)

Nesa Virus is a file-encrypting Trojan that makes the files of the innocent victim unreadable. This cryptomalware appends Nesa Virus or similar as an extension to all files that it manages to compromise. Once the complex process of changing the core structure of your data ends, you may lose access to everything valuable to you like your photos, documents, notes, videos, etc. Just like all ransomware Trojans, Nesa Virus will keep them encrypted until the victim feels he has no other choice but to pay the ransom. This decision is not supported by the cyber security industry for several different reasons, which will be explained later in the article.

Threat Name	Nesa Virus
Category	Ransomware/Cryptovirus.
Main Activity	Infects the computer after which encrypts important documents and holds them hostage until a ransom is paid.
Signs of Presence	Files are encrypted with a custom file extension and users are extorted to pay ransom to get the data to work again..
Spread	Via malicious e-mail spam and set of infection tools.

 How Does the Infection with Nesa Virus Begin?

The developers of this ransomware try to deploy it to the computers of the victims via a variety of clever tactics. The hackers most commonly rely on spam email campaigns to reach the unsuspecting PC users. With only a few clicks, the cyber criminals may send the payload of Nesa Virus towards hundreds or even thousands of users at once. This process also involves very little operational costs and a high success rate, which explains why it is so preferred. While the spam emails is a single tactic, it can come in very different forms. The hackers may try to look as if the malicious message was coming from banks, financial platforms like PayPal, shipping companies like DHL or famous email providers. Usually, the content of the letters mentions some unauthorized transactions or other information that may worry the recipient.

The email itself contains very little information, and the supplementary data is supposed to appear in the attached file. If you make the mistake to download or open it, you may infect your machine with Nesa Virus. The problem may also happen if you install programs like Adobe or Java from random suspicious platforms like the majority of porn sites.

 What May Follow If Nesa Virus Ransomware Finds a Way into Your System?

If this Trojan sneaks in, it will not reveal its presence immediately. It will first perform an encryption of all partitions of your hard disk. Depending on the amount of files you have there, the process may take between 15-20 mins and a few hours. Nesa Virus uses a ‘strong’ encryption, which would be either RSA or AES. These ciphers are indeed difficult to break without the corresponding key. Unfortunately, this tool cannot be extracted from your system because it is simply not there. As soon as the encryption ends, Nesa Virus automatically transfers the key towards distant hosts, which serve as Command and Control (C&C) servers. As of now, there is no data that some security researcher has managed to breach into these databases, but it may happen in the future. Nesa Virus encourages the user to pay a ransom in the form of Bitcoins, which varies from hundreds to thousands of dollars worth. The person has limited time to act – only several hours, which is a scare mechanism. The key is supposed to get destroyed when the timer reaches zero.

 What to and Not to Do After You Lose Your Files Due to Nesa Virus Ransomware?

The first and most important thing to remember is not to succumb to the pressure. No matter how the hackers threaten you, you should not pay the ransom. It is true that the sum is not that high in comparison to other file-encoding Trojans, but even if the hackers receive your money, they may not release the precious key. Or if they do, you should expect them to continue creating and spreading more ransomware, which means you may get infected by a similar cyber threat anytime in the future. The right action is to delete Nesa Virus immediately. Since this parasite compromises various areas of the system, it will be best to eliminate it via special security software. When the removal is completed, you can use some free decryptor that may manage to break the ciphers. Another possibility is to use a data restoring tool, which may revert your PC to an earlier date. If you have a recent copy of your hard drives, you can safely import all of your files back to your device.

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Preparation before removal of Nesa Virus:

1.Make sure to backup your files.
2.Make sure to have this instructions page always open so that you can follow the steps.
3.Be patient as the removal may take some time.

Step 1: Reboot your computer in Safe Mode:

1) Hold Windows Key and R

2) A run Window will appear, in it type “msconfig” and hit Enter

3) After the Window appears go to the Boot tab and select Safe Boot

Step 2: Cut out Nesa Virus in Task Manager

1) Press CTRL+ESC+SHIFT at the same time.

2)Locate the “Details” tab and find malicious process of Nesa Virus. Right-click on it and click on “End Process”.

Step 3: Eliminate Nesa Virus‘s Malicious Registries.

For most Windows variants:

1) Hold Windows Button and R. In the “Run” box type “regedit” and hit “Enter”.

2) Hold CTRL+F keys and type Nesa Virus or the file name of the malicious executable of the virus which is usually located in %AppData%, %Temp%, %Local%, %Roaming% or %SystemDrive%. Usually, most viruses tend to set entries with random names in the “Run” and “RunOnce” sub-keys.

3) You can also find the virus’s malicious files by right-clicking on the value and seeing it’s data. After having located malicious registry objects, some of which are usually in the Run and RunOnce subkeys delete them permanently and restart your computer. Here is how to find and delete keys for different versions.

Step 4: Scan for and remove all virus files, related to Nesa Virus and secure your system.