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Danger level 7
Type: Trojans
Common infection symptoms:
  • Slow Computer
  • System crashes
  • Connects to the internet without permission
  • Installs itself without permissions
  • Can't be uninstalled via Control Panel

Usr0 Ransomware

Usr0 Ransomware is an infection that might lurk in regular-looking spam emails. Although our research team warns that plenty of other methods of distribution could be utilized, it is most likely that the malicious executable will be attached to a spam email. You might be tricked into opening this file thinking that it is a harmless document, when, in reality, opening this corrupted file is what launches the infection. The problem is that the execution of this ransom is silent, and you will not notice it. Of course, if you do not notice it, you cannot remove Usr0 Ransomware in time, and that leads to the encryption of your precious personal files. Once they are encrypted, you will find the “.usr0” extension attached to them, and they will become unreadable. Is there a way to decrypt your files? Should you delete the ransomware right away? Continue reading to learn more about this.

It appears that Usr0 Ransomware is primarily targeted at users who speak Russian. The ransom note created by this infection is represented in Russian. The file that contains this note is called “Важная информация.txt”, and you are likely to find it on the Desktop. According to the message, you need to send your unique ID number – which is included in the message – to It also includes a disclaimer suggesting that your files will be harmed if you use third-party decryptors. Do they exist? We are not too sure about this at the moment, but it is possible that a third-party decryptor capable of deciphering the encryption key will emerge in the future. Should you pay attention to the warning of cyber criminals? It is most likely that they are simply trying to intimidate you, but it is smart to back up your data just in case. Of course, if you use a flash drive to transfer your files, use an empty one. We cannot guarantee that this infection will not be able to corrupt your flash drive contents as well.

According to our research, the creator of Usr0 Ransomware is most likely to demand a ransom fee of 1.24 BTC, which, at the moment, converts to around ₽47500 or $750. Needless to say, the ransom fee is huge, and not every victim will have enough to cover it. Do you have the money? Well, even if you do, you need to remember that cyber crooks are completely unpredictable, and there is no way of telling if a decryption tool/key would be provided to you if you gave up your savings. Of course, we understand that your personal files are very precious and important to you, but do not get involved without thinking about the risk of losing your money. Moreover, you might decide that the price is too big for the files that were encrypted. If your most precious files are backed up, you might want to consider sacrificing the remaining files. If you decide to move on with the payment, do not forget that we warned you about the risks.

As it was found by our research team, Usr0 Ransomware deletes shadow copies of your files using the “vssadmin delete shadows /all /quiet” command. Unlock92 Ransomware, CryLocker Ransomware, and many other well-know infections have used this command to delete shadow copies. By doing that, cyber criminals ensure that the victims cannot recover their files even if they have set up a restore point. As you can see, it looks like, at the moment, you have no other option but to pay the ransom. Of course, you can choose to ignore the demands and quickly delete Usr0 Ransomware from your operating system.

Are you interested in deleting Usr0 Ransomware manually? This ransomware infection might be difficult to find, which is why we have created a list of potential locations where it might hide. Of course, if this threat was unleashed by opening a spam email attachment, you might remember where it is located. Do not worry if you cannot find and get rid of the ransomware manually. It is far more beneficial to employ automated malware detection and removal software anyway. By installing this software, you ensure full removal of all existing threats, as well as reliable protection against malware in the future. As long as you keep the anti-malware software updated, you will not need to fear computer infections.

Usr0 Ransomware Removal

  1. Right-click the Важная информация.txt file and select Delete (should be located on the Desktop).
  2. Right-click and Delete the malicious launcher. If you cannot find it, check for an unfamiliar .exe file with a random name in these locations:
    • %AppData%
    • %Roaming%
    • %Temp%
    • %Local%
    • %SystemDrive%

N.B. To access these directories, launch Explorer by tapping Win+E and enter the directory name into the address bar at the very top.

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