Nols Virus – Details
Nols is a destructive software working as common ransomware. Michael Gillespie, the well-known virus researcher, very first discovered this new name in the DJVU ransomware family.
Nols was developed for the sole purpose to encrypt all popular file types. Realistically, as quickly as the file encryption is successfully accomplished, the users are not able to get access to them. Nols virus includes its own “.nols” to all the encrypted data. For instance, the file “price_list.xls”, once modified by Nols, will be entitled as “price_list.xls.nols”. Once the encryption is achieved, Nols puts its own distinct text document (_readme.txt) into all the folders that keep the encrypted files.
The alert stated by _readme.txt requesting the random os really similar to the notifications given by other ransomware threats belonging to the DJVU family. The caution basically shows that the data has been secured and the only solution to get access to it is to use an unique standalone key. Regretfully, this declaration is absolutely real.
The approach to encrypt the files used by Nols is not completely looked into. However, there is no doubt that each computer system owner may be issued an unique decryption key, which is definitely unique. It is incredibly tough to recover the information without the appropriate type in location.
“Don’t worry, you can return all your files!”, from _readme.txt message:
One more peculiarity of the Nols ransomware is that the users are not able to get access to the key. The decrypting key is hosted on an unique server under the total control by the scoundrels who have introduced the Nols virus into the world wide web. In order to get the key and restore the crucial data, the users are informed to contact the scams by means of email or by telegram and to pay the ransom in the amount of $980.
The message also says that the people ought to contact the Nols authors within 72 hours upon the moment of the data file encryption. The alert suggests that by doing so the people will get a 50% discount, therefore, the ransom quantity drops down to $490.
Nols encrypted your files, however, it may not be the only risk on your PC. Plus, the ransomware may be hidden deep in the system. To spot and delete the threat totally, we recommend you to describe the aid of GridinSoft Anti-Malware tool.
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No matter what the amount of the ransom is, we highly recommend that you do not pay the ransom. There is no assurance that these online scoundrels will keep their pledges, so they may not care at all what the victims feel about the file encryption, even when the quantity of the ransom is gotten into their accounts. Hence, paying ransom frequently does not lead to an effective healing. So, the users may just lose their money for absolutely nothing.
Similarly, we prompt you not to contact the frauds as they instruct. Do not transfer loan into their wallets. There are no applications that might crack the Nols ransomware or restore the information at no charge. For that reason, the only proper decision is to restore the information from possible backups (if readily available).
Virus Summary
| Name | Nols Ransomware |
| File Extension | nols |
| Type | Ransomware |
| Family | DJVU |
| Short Description | The ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files. |
| Symptoms | File encryption by the ransomware is performed by means of the AES-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .nols extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Werd, Leto, Bora |
| Removal Tool | GridinSoft Anti-Malware |
Do not forget that the Web is now full of infections similar to the Nols virus. For example, this particular threat is generally similar to Brusaf and other ransomware-type infections. These harmful energies have actually been developed in order to encrypt the crucial information and reveal the demand for the users to pay the ransom. All these infections utilize the similar algorithm to create the particular key for effective files decryption.
Unless the Nols ransomware is still under the advancement process or has got some hidden bugs, it is not possible to restore the information manually. Hence, the only working option to prevent the loss of your crucial data is to routinely keep up-to-date backups of all your important files.
Another important piece of suggestions is to save the backups on special storage not linked to your primary device. For instance, you might keep it on the USB Flash Drive, or some external hard disk, or by using the cloud data storage services. Keeping the backups on your routine drive is very risky, since the backup might likewise be encrypted by the Nols infection.
Leaks for the Nols ransomware attack.
Nols uses numerous paths to infiltrate the vulnerable computer systems. It is not particular what specific technique was used in your case, nevertheless, the invasion may occur by means of the following channels:
- bundling with third-party programs, generally free software;
- spam emails from the unidentified senders;
- websites offering free hosting;
- P2P (peer-to-peer) torrent downloads.
There are times when the Nols virus may disguise itself as some genuine application, for example, through the misleading notifies requiring installation of some software application upgrade. This is the most typical trick used by the frauds to inject the Nols ransomware files into the system. In this manner users partly participate in its installation, without clearly understanding the risk.
Additionally, the frauds might send unsolicited spam e-mail with tricky notifies encouraging the people to open suspicious attachments or click some download links, for instance, those encouraging individuals to open specific images, text files, tax files and other info.
No doubt, opening these files or clicking on the malicious links might essentially damage the system. Fake Adobe Flash Player upgrade notices may lead to the Nols ransomware seepage. Similarly, downloading the cracked software application might additionally consist of the ransomware installer. The last but not the least, installation of Nols may take place through some Trojan horses that might be installed stealthily into the system and without the user’s direct authorization and even consent.
Avoiding the Nols ransom virus injection.
Naturally, there is no absolute assurance that your computer will be constantly devoid of any malware attacks, however, we would like to share some helpful ideas with you to make it more secure. Make sure to pay really very close attention while browsing the web and specifically while getting cost-free programs. Do not open any dubious e-mail accessories, particularly if the sender is not known to you.
Do not forget that specific freeware installer may likewise include some other additional apps in the package. These additional applications might be really damaging. It is of utmost significance to keep your anti-virus software application and your os in general to be always effectively updated.
It is rather logical that downloading cracked apps is illegal, however, furthermore, such unauthorized apps use might likewise bring severe damage to your PC. Hence, do not download any split programs. Plus, the fact that your current anti-virus did not protect the system from the Nols ransomware is an excellent factor for you to reevaluate your choices and change to another program that can render the securing functions on a better level.
Below please find the quotation from the Nols text file:
ATTENTION! Don't worry, you can return all your files! All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-2P5WrE5b9f Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: gorentos@bitmessage.ch Reserve e-mail address to contact us: gorentos2@firemail.cc Our Telegram account: @datarestore
Screenshot of files with “.nols” extension added by the virus:”
Use GridinSoft Anti-Malware to remove Nols ransomware from your computer
1.Download GridinSoft Anti-Malware.
You can get GridinSoft Anti-Malware by clicking the button below:
2. Double-click on the setup file.
When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
3. Press Install button for run GridinSoft Anti-Malware.
3.Once installed, GridinSoft Anti-Malware will automatically run.
4. Wait for the GridinSoft Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
5. Click on “Clean Now”.
When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
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