What is Urnb Ransomware

The number of queries related to new ransomware activity is growing each day with new infections. This time around users are dealing with Urnb Ransomware, which is a new and dangerous piece developed by the Djvu/STOP family. Its recent activity has encrypted a lot of personal data with strong algorithms. Despite Urnb Ransomware has not been totally inspected just yet, there are some things that are clear already. For example, the virus reconfigures various types of data (images, documents, databases, etc.) changing original extensions to .urnb. This means that all types of data will save its initial name, but change the main extension to something like this "1.pdf.urnb". Once the encryption process gets to a close, you will no longer be able to access your data. In order to regain it, extortionists have scripted the creation of identical notes dropped into encrypted folders or onto a desktop. The name of the note is usually _readme.txt, which contains detailed instructions on how to recover your data.

STOP Ransomware (.urnb extensions)
ATTENTION!
Don't worry, you can return all your files!
All your files like pictures, 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:
hxxps://we.tl/t-KS9S2cEnsx
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:
helpteam@mail.ch
Reserve e-mail address to contact us:
helpmanager@airmail.cc
Your personal ID:
{alphanumeric sequence}

As developers claim, the only feasible way to decrypt your data is to purchase special software along with the unique key stored on their servers. To disperse any doubts of users, they also offer to test free decryption before buying the whole software. You can choose any blocked file (not valuable) and send it to cybercriminals for free decryption. More likely they will successfully prove their ability of data decryption, however, this does not exclude the risk of being fooled afterwards. There have been many scenarios when users did not receive any decryption tools even after paying the ransom. This is why the risk is always present and it is up to you whether to pay the ransom or not. The total price of decryption software equals 980$, however, it can be halved down to 490$ if you contact cybercriminals within 72 hours via e-mail (helpteam@mail.ch or helpmanager@airmail.cc). Unfortunately, these swindlers are true saying that they are the only figures being able to decrypt your data. At the moment of writing this article, cyber experts have not found a way to decipher the data encrypted by Urnb Ransomware. As a rule, all Djvu infections are well-developed and contain minimal bugs that could expose their ciphers. In this case, recovering access to blocked data is very unlikely, but still worth trying if you are not ready to pay the ransom. To do this, you should delete Urnb Ransomware from your computer and use the recovery tools presented below.

urnb ransomware

How Urnb Ransomware infected your computer

If you are wondering how ransomware could pounce your system, we have it explained in this section. Usually, file-encrypting programs tend to be distributed via unprotected RDP configuration, e-mail spam letters, keyloggers, trojans, backdoors, fake software cracking tools, malicious ads, dubious downloads, and many more. The most popular penetration out of this list appears to be done via e-mail messages. Extortionists disguise a wide range of e-letters as legitimate campaigns promoting online products. Bundled with malicious attachments, swindlers make everything possible to force users into downloading or interacting with them. The hidden malware is often included in MS Office documents, PDFs, executables, and JavaScript files. Thus, whenever you see an ostensibly legitimate message asking to open a file or follow suspicious links, more likely it is meant to deliver ransomware or other types of malware. Overall, in order to prevent ransomware from reaching your data, you should be more careful whilst using the web. Never open or download content spread by unknown and dubious resources. In addition to that, it is highly recommended to use anti-malware software that warns and blocks users from facing potentially dangerous content. We offer a couple of high-end software that will be useful in combating such threats in the future. Both removal instructions and protectionary tools can be found below.

  1. Download Urnb Ransomware Removal Tool
  2. Get decryption tool for .urnb files
  3. Recover encrypted files with Stellar Data Recovery Professional
  4. Restore encrypted files with Windows Previous Versions
  5. Restore files with Shadow Explorer
  6. How to protect from threats like Urnb Ransomware

Virus modifies “hosts” file to block Windows updates, downloading antivirus programs, and visiting sites related to security news or offering security solutions. Urnb Ransomware comes along with AZORult trojan, which was initially created to steal logins and passwords. The process of infection also looks like installing Windows updates, the malware shows a fake window, that mimics the update process.

fake windows update from Urnb Ransomware

It uses rdpclip.exe to replace a legal Windows file and to launch an attack on a computer network. After encrypting the files, the encrypter is deleted using the delself.bat command file. Urnb Ransomware virus is propagated via spam attack with malicious e-mail attachments and using manual PC hacking. Can be distributed by hacking through an unprotected RDP configuration, fraudulent downloads, exploits, web injections, fake updates, repackaged, and infected installers. The virus assigns a certain ID with the victims, which is used to name those files and supposedly to send a decryption key. Great tools to protect against Urnb Ransomware are: Emsisoft Anti-Malware and Malwarebytes Anti-Malware.

Download Urnb Ransomware Removal Tool

Download Removal Tool

To remove Urnb Ransomware completely, we recommend you to use WiperSoft AntiSpyware from WiperSoft. It detects and removes all files, folders, and registry keys of Urnb Ransomware and prevents future infections by similar viruses.

Alternative Removal Tool

Download SpyHunter 5

To remove Urnb Ransomware completely, we recommend you to use SpyHunter 5 from EnigmaSoft Limited. It detects and removes all files, folders, and registry keys of Urnb Ransomware. The trial version of SpyHunter 5 offers virus scan and 1-time removal for FREE.

How to remove Urnb Ransomware manually

It is not recommended to remove Urnb Ransomware manually, for safer solution use Removal Tools instead.

Urnb Ransomware files:

_readme.txt
rdpclip.exe
delself.bat
{randomname}.exe

Urnb Ransomware registry keys:

no information

How to decrypt and restore .urnb files

Use automated decryptors

Download STOP Djvu Decryptor from EmsiSoft (.urnb variations)

IMPORTANT: Read this detailed guide on using STOP Djvu Decryptor to avoid file corruption and time wasting.

STOP djvu ransomware decryptor from emsisoft

STOP Djvu Decryptor is able to decrypt .urnb files, encrypted by Urnb Ransomware. This tool was developed by EmsiSoft. It works in automatic mode, but in most cases works only for files encrypted with offline keys. Download it here:

Download STOP Djvu Decryptor

Dr.Web Rescue Pack

Famous antivirus vendor Dr. Web provides free decryption service for the owners of its products: Dr.Web Security Space or Dr.Web Enterprise Security Suite. Other users can ask for help in the decryption of .urnb files by uploading samples to Dr. Web Ransomware Decryption Service. Analysis of files will be performed free of charge and if files are decryptable, all you need to do is purchase a 2-year license of Dr.Web Security Space worth $120 or less. Otherwise, you don’t have to pay.

If you are infected with Urnb Ransomware and removed it from your computer, you can try decrypting your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually you can do the following:

Use Stellar Data Recovery Professional to restore .urnb files

stellar data recovery professional

  1. Download Stellar Data Recovery Professional.
  2. Click Recover Data button.
  3. Select type of files you want to restore and click Next button.
  4. Choose location where you would like to restore files from and click Scan button.
  5. Preview found files, choose ones you will restore and click Recover.
Download Stellar Data Recovery Professional

Using Windows Previous Versions option:

  1. Right-click on infected file and choose Properties.
  2. Select Previous Versions tab.
  3. Choose particular version of the file and click Copy.
  4. To restore the selected file and replace the existing one, click on the Restore button.
  5. In case there is no items in the list choose alternative method.

Using Shadow Explorer:

  1. Download Shadow Explorer program.
  2. Run it and you will see screen listing of all the drives and the dates that shadow copy was created.
  3. Select the drive and date that you want to restore from.
  4. Right-click on a folder name and select Export.
  5. In case there are no other dates in the list, choose alternative method.

If you are using Dropbox:

  1. Login to the DropBox website and go to the folder that contains encrypted files.
  2. Right-click on the encrypted file and select Previous Versions.
  3. Select the version of the file you wish to restore and click on the Restore button.

How to protect computer from viruses, like Urnb Ransomware, in future

1. Get special anti-ransomware software

Use BitDefender Anti-Ransomware

bitdefender anti-ransomware

Famous antivirus vendor BitDefender released a free tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. It will not conflict with bigger security applications. If you are searching complete internet security solution consider upgrading to full version of BitDefender Internet Security 2018.

Download BitDefender Anti-Ransomware

2. Back up your files

idrive backup

As an additional way to save your files, we recommend online backup. Local storages, such as hard drives, SSDs, flash drives, or remote network storages can be instantly infected by the virus once plugged in or connected to. Urnb Ransomware uses some techniques to exploit this. One of the best services and programs for easy automatic online backup is iDrive. It has the most profitable terms and a simple interface. You can read more about iDrive cloud backup and storage here.

3. Do not open spam e-mails and protect your mailbox

mailwasher pro

Malicious attachments to spam or phishing e-mails are the most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications and provides a very high level of anti-spam protection.

Download MailWasher Pro
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