Cerber, CTB-Locker, John圜ryptor, Purge, and Dharma. These are just some examples. There are dozens of ransomware-type viruses similar to *.osiris. Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data: It is currently impossible to restore files encrypted by *.osiris ransomware - you can only restore your files/system from a backup. It is highly probable that paying will not deliver any positive result and you will be scammed. Therefore, you are strongly advised to ignore all requests to pay a ransom or contact these people. Be aware, however, that cyber criminals responsible for the development of ransomware-type viruses often ignore victims, despite submitted payments. *.osiris's developers store the private key on a remote server and victims are encouraged to pay a ransom of 2.5 Bitcoin (currently, 1 Bitcoin is equivalent to ~$750) to receive it.Īll payment instructions are provided on *.osiris's Tor website (link is given in the message).
Unfortunately, this information is accurate.ĭuring asymmetric encryption, two keys (public and private ) are generated. The HTML file and desktop wallpaper contain an identical message stating stated that files are encrypted using asymmetric encryption algorithm and that they can only be restored using a private key. html"), placing it on the desktop and changing the desktop wallpaper.
Following encryption, *.osiris creates an HTML file (" OSIRIS-ede4. *.osiris was first discovered by R0bert R0senb0rg.įollowing infiltration, *.osiris encrypts stored data using asymmetric cryptography and renames encrypted files using the " -.osiris" pattern.įor example, " sample.jpg" might be renamed to " GD89LL14-G8A1-9G01-AF1G9L1K-H0AK3LH0GM17". *.osiris is a new variant of Locky ransomware and virtually identical to *.zzzzz, *.thor, *.odin, and a number of other viruses.