Djvu VirusRansomwareRemoval Guide

Uajs Virus Removal Guide (+Decrypt .uajs files)

Uajs Virus Ransomware

Uajs is a malicious software application functioning as typical ransomware. Michael Gillespie, the popular virus researcher, first found this new name in the DJVU ransomware family.

Uajs was developed for the sole purpose to encrypt all popular file types. Realistically, as quickly as the encryption is effectively achieved, the users are unable to get access to them. Uajs virus adds its own “.uajs” to all the encrypted files. For instance, the file “price_list.xls”, when crypted by Uajs, will be entitled as “price_list.xls.uajs”. When the encryption is achieved, Uajs puts its own unique text file (_readme.txt) into all the folders that save the encrypted files.

The message stated by text file requesting for the random os very similar to the notifications offered by other ransomware risks belonging to the DJVU family. The caution generally 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 statement is definitely real.

The approach to secure the files utilized by Uajs is not totally looked into. However, there is no doubt that each computer system owner might be released an unique decryption key, which is absolutely unique. It is extremely 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 Uajs infection 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 crooks who have actually launched the Uajs virus into the world wide web. In order to acquire the key and bring back the crucial data, the users are told to contact the frauds via email or by telegram and to pay the ransom in the amount of $980.

The message also states that individuals must get in touch with the Uajs authors within 72 hours upon the moment of the information encryption. The alert indicates that by doing so the people will obtain a 50% discount rate, therefore, the ransom quantity falls to $490.

No matter what the quantity of the ransom is, we strongly recommend that you do not pay the ransom. There is no assurance that these online scoundrels will keep their promises, so they might not care at all what the victims feel about the file encryption, even when the quantity of the ransom is received into their accounts. Hence, paying ransom often does not result in a successful healing. So, the users may just lose their money for absolutely nothing.

Similarly, we prompt you not to call the frauds as they instruct. Do not transfer money into their wallets. There are no applications that might break the Uajs virus or bring back the information for free. For that reason, the only correct choice is to restore the data from possible backups (if readily available).

Virus Summary

NameUajs Ransomware
File Extensionuajs
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 .uajs extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsLokas, Besub, Nusar
Uajs Removal Tool   GridinSoft Anti-Malware
Uajs Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now full of infections comparable to the Uajs virus. For instance, this particular risk is basically identical to Brusaf and other ransomware-type infections. These destructive energies have been established in order to encrypt the important data and reveal the need for the users to pay the ransom. All these infections utilize the identical algorithm to produce the specific key for successful files decryption.

Unless the Uajs ransomware is still under the development procedure or has actually got some hidden bugs, it is not possible to bring back the information by hand. Thus, the only working service to prevent the loss of your essential information is to regularly keep up-to-date backups of all your important files.

Another crucial piece of suggestions is to store the backups on special storage not linked to your primary PC. For instance, you might save it on the USB Flash Drive, or some external disk drive, or by using the cloud data storage services. Keeping the backups on your system drive is extremely dangerous, given that the backup may likewise be encrypted by the Uajs virus.

Leaks for the Uajs ransomware attack.

Uajs uses lots of paths to infiltrate the susceptible computers. It is not particular what specific technique was utilized in your case, nevertheless, the intrusion may occur through the following channels:

  • bundling with third-party programs, generally free software;
  • spam e-mails from the unknown senders;
  • sites providing complimentary hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Uajs ransomware may camouflage itself as some genuine application, for example, through the deceptive informs demanding setup of some software application upgrade. This is the most typical technique used by the frauds to inject the Uajs infection files into the system. In this manner users partly take part in its installation, without plainly understanding the danger.

In addition, the frauds may send out unsolicited spam e-mail with challenging notifies motivating individuals to open suspicious attachments or click on some download links, for example, those motivating individuals to open certain images, text files, tax files and other information.

No doubt, opening these files or clicking the malicious links may essentially harm the system. Fake Acrobat Reader update notifications may lead to the Uajs ransomware seepage. Likewise, downloading the broken software might additionally include the ransomware installer. The last but not the least, setup of Uajs may happen through some Trojan horses that might be installed stealthily into the system and without the user’s direct consent or perhaps permission.

Preventing the Uajs virus attack.

Obviously, there is no absolute guarantee that your computer system will be constantly free of any malware attacks, however, we wish to share some useful tips with you to make it much safer. Make certain to pay really close attention while searching the web and specifically while downloading cost-free programs. Do not open any suspicious email accessories, specifically if the sender is not known to you.

Do not forget that certain freeware installer might also contain some other extra apps in the package. These extra applications may be extremely damaging. It is of utmost importance to keep your anti-virus software application and your operating system in general to be always appropriately upgraded.

It is quite logical that downloading cracked apps is prohibited, however, in addition, such unauthorized software use might likewise bring severe damage to your PC. Hence, do not download any split programs. Plus, the reality that your present anti-virus did not secure the system from the Uajs ransomware is a great factor for you to reevaluate your options and switch to another program that can render the safeguarding functions on a better level.

Below please find the quotation from the Uajs 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 “.uajs” extension added by the ransomware:”

Uajs Ransomware - encrypt files with .uajs extension

Use GridinSoft Anti-Malware to remove Uajs 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 uajs 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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