There was crypting of all your files in a FS bootkit virus Screenshot of a message displayed after rebooting the computer: ![]() Combo Cleaner is owned and operated by Rcs Lt, the parent company of read more. To use full-featured product, you have to purchase a license for Combo Cleaner. Our security researchers recommend using Combo Cleaner. To eliminate possible malware infections, scan your computer with legitimate antivirus software. Additional password-stealing trojans and malware infections can be installed together with a ransomware infection. Infected email attachments (macros), torrent websites, malicious ads.Īll files are encrypted and cannot be opened without paying a ransom. Cyber criminals demand payment of a ransom (usually in bitcoins) to unlock your files. A ransom demand message is displayed on your desktop. !satana!.txt, desktop wallpaper, how_to_back_files.htmlĪvast (Win32:Apanas ), BitDefender (), ESET-NOD32 (Win32/Neshta.A), Kaspersky (), Full List Of Detections ( VirusTotal)Ĭannot open files stored on your computer, previously functional files now have a different extension (for example, my.docx.locked). It is also very important to use a legitimate anti-virus/anti-spyware suite and keep all installed applications up-to-date. Furthermore, ignore all mail sent from unrecognized/suspicious email addresses and never open any attached files. If possible, download your chosen files/software from trusted sources such as official promotion websites. Research also shows that ransomware is mostly distributed using fake software updaters, peer-to-peer (P2P) networks (such as, Torrent), infectious email attachments (for example, fake job application forms), and/or trojans. The only difference between them is the size of ransom. Research results show that !SATANA! has similar characteristics to CryptoLocker, Cerber, Locky, CryptoWall, and many other ransomware-type viruses that also encrypt files and make ransom demands. Screenshot of a message (pop-up) encouraging users to contact the developers of !SATANA! ransomware to decrypt their compromised data: At this time, there are no tools capable of restoring files compromised by !SATANA! They only solution is to restore your files/system from a backup. Once the computer is restarted, victims are unable to access their desktop and a ransom-demand message is displayed. Unlike other ransomware, !SATANA! changes computer boot settings, replacing the "Master Boot Record" (information placed at the beginning of the hard drive, which instructs the computer how to boot) with a malicious loader.įurthermore, after encrypting victims' files, !SATANA! automatically restarts the computer after a certain period of time. Decryption without this private key is impossible.įurthermore, it is stored on remote servers controlled by cyber criminals who threaten to delete it if the payment is not made within seven days. !SATANA! uses an asymmetric encryption algorithm and, thus, public (encryption) and private (decryption) keys are generated during the encryption process. ![]() The ransom must be paid within seven days, otherwise decryption becomes impossible. Victims will then supposedly receive further instructions. To do so, victims must contact cyber criminals via an email address provided sending them the private ID, which is provided in the message. The opened message also states that victims must pay a ransom of 0.5 Bitcoin (currently, 1 Bitcoin is equivalent to $645.65). The same message is also presented in !satana!.txt, which this ransomware creates and places in each folder containing encrypted files. ![]() During encryption, !SATANA! changes the name of each encrypted file to the following format: file name].įor instance, sample.jpg is renamed to Following successful encryption, !SATANA! opens a pop-up message stating that the victim's files have been encrypted. It is designed to silently infiltrate computers and then encrypt various files. !SATANA! is a combination of Petya and MISCHA ransomware-type viruses.
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