Djvu VirusRansomwareRemoval Guide

Rugj Virus Removal Guide (+Decrypt .rugj files)

Rugj – Ransomware

Rugj is a destructive software working as typical ransomware. Michael Gillespie, the popular virus researcher, first discovered this new name in the DJVU ransomware family.

Rugj was created for the sole function to encrypt all popular file types. Logically, as soon as the encryption is effectively accomplished, the users are unable to get access to them. Rugj ransomware adds its own “.rugj” to all the encrypted data. For example, the file “price_list.xls”, once crypted by Rugj, will be titled as “price_list.xls.rugj”. Once the encryption is achieved, Rugj puts its own special text document (_readme.txt) into all the folders that keep the encrypted files.

The alert specified by _readme.txt asking for the random os really comparable to the alerts provided by other ransomware threats belonging to the DJVU family. The warning essentially shows that the information has been secured and the only option to get access to it is to use an unique standalone key. Regretfully, this declaration is definitely true.

The method to encrypt the files used by Rugj is not completely researched. However, there is no doubt that each computer owner may be released an unique decryption key, which is absolutely distinct. It is exceptionally hard to recover the data without the proper key in place.

“Don’t worry, you can return all your files!”, from text file message:

Don't worry, you can return all your files! virus

One more peculiarity of the Rugj infection is that the users are unable to get access to the key. The decrypting key is hosted on a special server under the complete control by the scoundrels who have actually released the Rugj virus into the internet. In order to get the key and restore the important information, the users are told to get in touch with the scams by means of email or by telegram and to pay the ransom in the amount of $980.

The message likewise states that individuals ought to get in touch with the Rugj authors within 72 hours upon the minute of the information encryption. The alert indicates that by doing so individuals will get a 50% discount rate, therefore, the ransom quantity falls to $490.

No matter what the amount of the ransom is, we highly advise that you do not pay the ransom. There is no guarantee that these online crooks will keep their promises, so they might not care at all what the victims feel about the encryption, even when the quantity of the ransom is gotten into their accounts. Thus, paying ransom often does not result in a successful healing. So, the users might merely lose their money for nothing.

Likewise, we advise you not to call the scams as they instruct. Do not move cash into their wallets. There are no applications that could split the Rugj ransomware or bring back the data at no cost. Therefore, the only right decision is to restore the information from possible backups (if available).

Virus Summary

NameRugj Ransomware
File Extensionrugj
TypeRansomware
FamilyDJVU
Short DescriptionThe 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.
SymptomsFile 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 .rugj extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsLokas, Besub, Nusar
Rugj Removal Tool   GridinSoft Anti-Malware
Rugj Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now loaded with infections similar to the Rugj ransomware. For example, this particular threat is essentially similar to Brusaf and other ransomware-type infections. These harmful energies have been established in order to encrypt the important information and reveal the demand for the users to pay the ransom. All these infections use the identical algorithm to generate the specific key for effective files decryption.

Unless the Rugj ransomware is still under the advancement process or has got some hidden bugs, it is not possible to restore the information by hand. Therefore, the only working service to prevent the loss of your important data is to regularly keep up-to-date backups of all your crucial data.

Another important piece of suggestions is to store the backups on special storage not connected to your main PC. For example, you may store it on the USB Flash Drive, or some external hard disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is extremely risky, because the backup might also be encrypted by the Rugj .

Leakages for the Rugj ransomware attack.

Rugj utilizes lots of courses to infiltrate the susceptible computers. It is not particular what particular method was utilized in your case, however, the invasion might occur through the following channels:

  • bundling with third-party programs, mainly freeware;
  • spam e-mails from the unknown senders;
  • websites supplying complimentary hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Rugj ransomware may disguise itself as some genuine application, for example, through the deceptive alerts requiring installation of some software application update. This is the most typical trick used by the frauds to inject the Rugj infection files into the system. By doing this users partly take part in its setup, without plainly comprehending the risk.

Furthermore, the scams may send out unsolicited spam e-mail with difficult alerts motivating the people to open dubious accessories or click some download links, for instance, those motivating the people to open specific photos, text files, tax documents and other info.

No doubt, opening these files or clicking the malicious links might basically harm the system. Fake Acrobat Reader update notices may cause the Rugj ransomware infiltration. Similarly, downloading the broken software may additionally consist of the ransomware installer. The last however not the least, installation of Rugj may take place through some Trojan horses that might be set up stealthily into the system and without the user’s direct authorization and even consent.

Preventing the Rugj ransomware injection.

Obviously, there is no outright assurance that your computer will be constantly without any malware attacks, however, we would like to share some helpful suggestions with you to make it much safer. Ensure to pay really attention while browsing the web and specifically while downloading cost-free programs. Do not open any dubious email attachments, particularly if the sender is not understood to you.

Do not forget that particular freeware installer may also consist of some other additional apps in the bundle. These additional applications might be very damaging. It is of utmost importance to keep your anti-virus software and your operating system in general to be always effectively upgraded.

It is rather sensible that downloading cracked software is illegal, nevertheless, furthermore, such unauthorized programs use may also bring major damage to your system. Hence, do not download any broken programs. Plus, the fact that your current anti-virus did not protect the system from the Rugj ransomware is a good factor for you to reevaluate your choices and switch to another program that can render the securing functions on a much better level.

Below please find the quotation from the Rugj 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:
 restorealldata@firemail.cc
  
 Reserve e-mail address to contact us:
 gorentos@bitmessage.ch 

 Our Telegram account:
 @datarestore

Screenshot of files with “.rugj” extension added by the ransomware:”

Rugj Ransomware - encrypt files with .rugj extension

Use GridinSoft Anti-Malware to remove Rugj ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

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.
GridinSoft Anti-Malware
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.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

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.
GridinSoft Anti-Malware Scan

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.
GridinSoft Anti-Malware Scan Result

Use Emsisoft Decryptor for restore rugj files

You can get Emsisoft Decryptor by clicking the button below:

  Emsisoft Decryptor

  1. Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
  2. Once the license terms are accepted, the primary decryptor user interface opens.
  3. By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
  4. Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
  5. After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
  6. The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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