Viruses

Muhstik Ransomware is nasty cipher virus, that encrypts user data on QNAP NAS network drives using AES-256 (CBC mode) + SHA256 algorithms, and then requires a ransom of 0.045 - 0.09 BTC (currently ~$700) to return the files. According to researchers, this program is not directly related to eCh0raix Ransomware, although there is a certain external similarity. After finishing encryption procedure, malware adds .muhstik extension to affected files. The malware first checks the system language and does not start encryption on systems with Russian, Belorus or Ukranian languages. At the moment, there is a public decryption tool called EmsiSoft Decrypter for Muhstik available. It is able to decrypt files encrypted by most versions of this virus. If it is unable to recover the data, full recovery is only possible with the help of backups.

Sodinokibi Ransomware (a.k.a. BlueBackground Ransomware or REvil Ransomware) is disruptive cryptovirus, that encrypts user data using Salsa20 algorithm with the ECDH-based key exchange method, and then requires a ransom around 0.475–0.950 BTC to return the files. In other words, if the amount is set at $2500, then without paying within 7 days, it doubles to $5000. It appeared in April 2019 for the first time. Inside the JSON configuration file is a list of 1079 domains. Sodinokibi establishes a connection with each domain of this list by generating a URL using a domain generation algorithm, although, they are not Sodinokibi servers. Follow the detailed guide on this page to remove Sodinokibi Ransomware and decrypt your files in Windows 10, 8/8.1, Windows 7.

CryptON Ransomware or Nemesis Ransomware or X3M Ransomware is one of the most dangerous and wide-spread ransomware families. Currently, there are multiple successors of initial virus and several deviations built on another platforms. Cry9, Cry36 and Cry128 Ransomware came from this series. Virus uses mix of AES-256, RSA-2048 and SHA-256 encryption algorithms Latest discovered version is actually called CryptON Ransomware and uses .ransomed@india.com extension for affected files. Ransom demand from 0.2 to 1 BitCoin for decryption. It is not recommended to pay the ransom as there are no guarantee malefactors will send decryption key. Use instructions on this page to remove CryptON Ransomware and decrypt .ransomed@india.com, _x3m or _locked files from Windows 10, Windows 8 or Windows 7.

Rapid V3 Ransomware (a.k.a Rapid 3.0 Ransomware) is new iteration of notorious Rapid Ransomware. This version uses AES encryption algorithm and can append following extensions to user files: .guesswho, .mouse, .GILLETTE, .no_more_ransom, .nano, .ezymn, .rpd, .[5-random-characters]. Currently, there is no decryptor with confirmed working capacity for Rapid V3 Ransomware. However, using backups, recovery software or other pieces of advice from this page can help you recover encoded files. The virus uses the same template for a ransom note. Some variation create ransom note with name: How Recovery Files.txt. Rapid V3 Ransomware extorts 0,7 BitCoins (BTC) for recovering files from decryption. Users can contact developers using e-mail demonslay335@rape.lol, which is a reference to and mockery of a famous security researcher from Bleeping Computer forum, who has nickname "demonslay335". There is information about the victims from the following countries: USA, Iran, Germany, Japan, Benin, South Korea, Indonesia, Spain, Malaysia, India.

Aurora Ransomware (sometimes called OneKeyLocker Ransomware) is new crypto-virus, that started circulating the web since the end of May, 2018. The virus mostly aims Western countries, however, some versions were spread in Turkey. It uses DES algorithm to encode files and adds .aurora extension, after which it got its name. Since that, malware had multiple updates and modifications. Ransomware now also adds following extenions: .nano, .cryptoid, .peekaboo and .isolated. After encryption ransomware creates different text files (depending on version), containing ransom note with contact information and instructions.

Dharma virus, unlike similar types of ransomware, does not change desktop background, but creates README.txt or Document.txt.[amagnus@india.com].zzzzz files and places them in each folder with compromised files. Text files contain message stating that users have to pay the ransom using Bitcoins and amount is approximately $300-$500 depending on ransomware version. The private decryption key is stored on a remote server, and there currently impossible to break the encryption of the latest version.

Dharma-Html Ransomware is one of the types of encryption viruses based on the code of the family of Crysis-Dharma-Cezar ransomware. Version, that is under review today has certain differences. It adds .html extension to encrypted files and uses other e-mail addresses for communication. Dharma-Html Ransomware, as well as other latest Dharma variations, doesn't have decryptor, that can automatically decrypt encoded data. However, using instructions below can help you recover some files. Dharma-Html Ransomware creates suffix, that consists of several parts: prefix "id-", identification number (alphanumeric and unique for each computer), developer's e-mail address and .html extension. The pattern of the filename after encryption looks like this: file called 1.doc will be converted to 1.doc.id-{8-digit-id}.[{email-address}].html.

Jamper Ransomware is a nasty file-encryption virus, that uses AES algorithm to encrypt your files and extorts a ransom of 1 to 3 BTC (Bitcoins). This malware is the successor of VegaLocker (Vega Ransomware) and predecessor of Buran Ransomware. Jamper Ransomware, depending on the version, may add .jamper, .jumper or .SONIC extensions to files it affects. After ransomware activity, your files become inaccessible and unreadable. Malware creates ransom note file called ---README---.TXT after it finishes. Jamper Ransomware removes shadow copies of files (VSS), disables recovery features of Windows, which makes it difficult to recover encrypted files.