GandCrab V3 Ransomware is another generation of high-risk GandCrab virus, that uses AES-256 (CBC-mode) + RSA-2048 encryption algorithms. This version also appends .CRAB extensions to all encrypted files. GandCrab V3 creates similar CRAB-DECRYPT.txt file with changed ransom note. Unlike previous versions GandCrab V3 Ransomware uses carder.bit as a server and Psi-Plus Jabber for communication. It also modifies desktop background with unpleasant inscription. Ransomware restarts the computer after encryption is finished, and creates autorun key in the registry to run on Windows startup and attack newly created files. Ransom amount is ~$1000 and can be paid in Dash or BitCoin. Virus creates counter and deadline after which ransom amount can double.
Scarab Ransomware is a large family of international file-encrypting virus-extortionist. It has multiple versions and languages and attacks computers all over the world. Scarab Ransomware has typical malicious activity: it encrypts user files using AES encryption and demans ransom for decryption. Latest versions of this malware add .oblivion, .xtbl, .email@example.com or .amnesia extensions and modify filenames using randomly-generated alphanumeric sequence.
Velso Ransomware is maleficent crypto-virus, that uses AES encryption algorithm to encode user files. Ransomware mostly targets English-speaking countries, but may infect computers in any country. Affected files get .velso or .david extension and become inaccessible. After encryption Velso Ransomware creates text file get_my_files.txt with instructions to pay the ransom. The ID of the key and victim is generated by CryptGenRandom (), using AES-256 OpenSSL in ECB mode. Currently, there is almost impossible to decrypt files encrypted by Velso without master key.
STOP Ransomware is dangerous file-encrypting virus. It uses AES/RSA-1024 encryption algorithm. Depending on version, ransomware adds .STOP, .SUSPENDED or .WAITING extensions to encrypted files. First variant of STOP Ransomware creates !!!YourDataRestore!!!.txt files, second !!!RestoreProcess!!!.txt, third !!!INFO_RESTORE!!!.txt. In this files, malware demands $600 ransom, that has to be paid in 72 hours, in BitCoins. It also contains user personal id and e-mail addresses for contacting.
Hermes Ransomware wide-spread family of crypto-viruses. There have been 2 major updates of initial ransomware – Hermes 2.0 Ransomware and Hermes 2.1 Ransomware. All variants use AES-256 encryption algorithm combined with RSA-2048. First version did not add any extensions and modified only content of the files by adding HERMES file-marker. Last version started to append .hrm suffix, but then just encrypted files without filename modification. After encryption, ransomware creates text files DECRYPT_INFO.txt and DECRYPT_INFORMATION.html, that contains message with instructions to pay the ransom and contact details. You can see the contents of this files below in the next paragraph.