Ursa Ransomware — How to Remove Ursa 1.0?

Ursa 1.0

Ursa does not rename encrypted files. RECOVER_YOUR_FILES.TXT file, which can be found in every folder that contains the encrypted files, is a ransom money note. Inside of it, you can find information about ways of contacting Ursa ransomware developers, and some other info. Inside of the ransom note, there is usually an instruction saying about purchasing the decryption tool. This decryption tool is created by ransomware developers.

The RECOVER_YOUR_FILES.TXT file by the Ursa ransomware states the following frustrating information:

All your files have been encrypted with URSA 1.0

* What happend to your files?
All of your files were protected by a strong encryption with RSA-2048 using Ursa 1.0
More information about the encryption keys using RSA-2048 can be found here: hxxps://(cryptosystem)

* What does this mean?
This means that the structure and data within your files have been irrevocably changed,
you will not be able to work with them, read them or see them, it is the same thing as losing them forever, but with our help, your can restore them.

* How did this happen?
Especially for you, on our server was generated the secret key pair RSA-2048 public and private.
All your files were encrypted with the public key, which has been transferred to your computer via the internet. Decrypting of your files is only possible with the help of the private key and decrypt program, which is on our secret server.

* What do i do?
Alas, if you do not take the necessary measures for the specified time then the conditions for obtaining the private key will be changed.
If you really value your data. then we suggest you go directly to your personal page. Do not waste valuable time searching for other solutions, because they do not exist.

Important information.

Your Personal Page: -

1. Download and install tor-browser hxxps://
2. After a successful installation, run the browser and wait for initialization.
3. Type or copy your personal page that you see above, into the address bar.
4. Follow the instructions on your personal page.

How did I get Ursa ransomware on my computer?

However, nowadays there are only two ways of Ursa injection – email spam and trojans. You may see a lot of messages on your email, stating that you need to pay different bills or to get your parcel from the local FedEx department. But all such messages are sent from unknown email addresses, not from familiar official emails of these companies. All such letters contain the attached file, which is used as a ransomware carrier. If you open this file – your system will get infected by Ursa.

In case of trojans presence, you will be offered to download and install ransomware on your PC under the guise of something legit, like a Chrome update, or update for the software you are storing on your computer. Sometimes, trojan viruses can be masked as legit programs, and ransomware will be offered for download as an important update, or a big pack of extensions which are essential for proper program functioning.

There is also the third way of ransomware injection, however, it becomes less and less popular day-to-day. I am talking about peering networks, such as torrents or eMule. No one can control which files are packed in the seeding, so you can discover a huge pack of different malware after downloading. If circumstances force you to download something from peering networks – scan every downloaded folder or archive with antivirus software.