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.Įspecially for you, on our server was generated the secret key pair RSA-2048 public and private.Īll your files were encrypted with the public key, which has been transferred to your computer via the internet. This means that the structure and data within your files have been irrevocably changed, More information about the encryption keys using RSA-2048 can be found here: hxxps://en./wiki/RSA_(cryptosystem) One of the first things you might see after the infection is the following ransom note:Īll your files have been encrypted with URSA 1.0Īll of your files were protected by a strong encryption with RSA-2048 using Ursa 1.0 Unfortunately, there are no 100% effective methods that would replace the keys provided by malware authors – the only secure way to restore data is by using backups that should have been created before the attack happened. As hackers explain within the ransom note, you need a private key that is only available to the attackers. While there are no extensions present, the files are still encrypted, and you will not be able to open them. It does not provide contact email and relies on Tor instead.This virus has several features that we do not see that often overall – they include: Ursa 1.0 is one of them, and it seems like these hackers are not playing games. While established strains are going steady with several variants being released weekly (for example, Djvu actors released Pola and Wbxd in one week alone), new ones are emerging as well. To remediate the OS and avoid its reinstallation, we recommend scanning it with the Reimage Intego repair tool Malware can seriously tamper with Windows systems, causing errors, crashes, lag, and other stability issues after it is terminated. Perform a full system scan with powerful security software, such as SpyHunter 5 Combo Cleaner Nonetheless, we suggest you try the alternative methods that could help you in some cases – we list them below If no backups are available, recovering data is almost impossible. No email is provided, although the attackers ask to access a special page on the Tor web browserĬybercriminals provide a Bitcoin wallet that the $350 ransom should be transferred to – 1GzM6BKf3kUFzfiqTDF4HiwvWAHHX68dx7 RECOVER_YOUR_FILES.HTML and RECOVER_YOUR_FILES.TXT The virus does not append any extensions, although files are still encrypted and cannot be opened Ransomware, data locking malware, cryptovirus This would provide access to a specially-crafted webpage with extensive instructions on how to buy Bitcoins and pay $350 for a decryptor. In these files, attackers explain what happened to victims' data and ask them to download the Tor browser. There are two ransom notes that the URSA virus drops as soon as it finishes to lock files – RECOVER_YOUR_FILES.HTML and RECOVER_YOUR_FILES.TXT. As a result, you will not be able to open any of the pictures, videos, documents, or other files without decryption software that is only be provided by hackers behind the malware. Unlike many other threats of a similar kind, it does not append any extension to personal files, although it does use the encryption algorithm (RSA-2048) for the purpose. URSA ransomware is a type of computer virus that focuses on money extortion. Ursa ransomware is a data-locking computer virus that asks for $350 worth of bitcoins for file recovery What is URSA ransomware? URSA ransomware is a data-locker that does not rename encrypted files
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