Ransomware

Yzaq Ransomware is a type of malicious software designed to extort money from users by encrypting files on their computers. It is a member of the STOP/Djvu ransomware family and uses the Salsa20 encryption mechanism. This cipher has an enormous amount of possible decryption keys, making it virtually impossible to brute force them. The ransomware encrypts only the first 150KB of each file, which means that larger files, such as videos or music, may still be partially accessible. This ransomware is known for appending a specific extension, .yzaq, to each encrypted file and creating a ransom note named _readme.txt in various folders on the infected computer. This note typically informs the victim that their files have been encrypted and that they must pay a ransom to recover them. The ransom demanded can range from $490 to $980, usually in Bitcoins.

BlackHatUP is a variant of ransomware based on the Chaos ransomware. It encrypts data, appends its extension (.BlackHatUP) to filenames, generates a ransom note (read_it.txt), and changes the desktop wallpaper. For instance, it changes 1.jpg to 1.jpg.BlackHatUP, 2.png to 2.png.BlackHatUP, and so forth. BlackHatUP ransomware encrypts files using the AES algorithm. The AES key is then encrypted using the RSA public key contained in the configuration. The ransom note informs the victim that their attempt to execute an unauthorized .exe file has resulted in the permanent loss of their files. It offers a potential solution by suggesting that the files can be recovered if the victim pays a sum of 500 Indian Rupees (INR). The victim is directed to contact "BlackHatUP" on Telegram. To prevent future ransomware infections, it's crucial to maintain good cybersecurity practices. This includes regularly updating and patching software, using reliable security solutions, avoiding suspicious emails or websites, and regularly backing up important data.

CATAKA is a type of ransomware, a malicious software that encrypts files on a victim's computer and demands a ransom for their decryption. It was discovered while examining samples uploaded to the VirusTotal website. Once a computer is infected, CATAKA encrypts files and appends a random extension to filenames. The extension consists of five random characters, making each file's extension unique. For example, it changes 1.jpg to 1.jpg.jslB3, 2.png to 2.png.f7J9a, and so forth. CATAKA ransomware uses a robust encryption algorithm to encrypt the victim's files, making it seemingly impossible to access the files without a specific decryption key held by the attacker. Upon successful encryption, CATAKA changes the victim's desktop wallpaper and provides a ransom note named Readme.txt. The ransom note is designed to convey a message from the attacker, apologizing for encrypting the victim's files and assuring the victim that data recovery is possible by purchasing the decryption key for $1500 in Bitcoin.

Ppvt Ransomware is harmful and dangerous file-encrypting infection that restricts access to data by encrypting files with the “.PPVT” extension. It is a variant of the notorious STOP/DJVU ransomware family. This ransomware targets images, documents, videos, and other important files on infected computers, encrypting them and appending the .ppvt extension to the filenames, rendering them inaccessible. Upon infection, the PPVT ransomware scans the computer for specific file types such as .doc, .docx, .xls, .pdf, and more. When these files are detected, the ransomware encrypts them and makes them inaccessible. The ransomware uses the Salsa20 encryption algorithm, which is a robust ciphering algorithm that provides an overwhelming amount of possible decryption keys. Once the Ppvt Ransomware has encrypted the files on your computer, it drops a ransom note named _readme.txt on the desktop. This note contains instructions on how to contact the authors of the ransomware and demands payment in Bitcoin cryptocurrency in exchange for the decryption key.

Ppvw Ransomware is a file-encrypting malware infection that restricts access to data such as documents, images, and videos by encrypting files with the .ppvw extension. It is a variant of the notorious STOP/DJVU ransomware family. The ransomware attempts to extort money from victims by asking for a "ransom", typically in the form of Bitcoin cryptocurrency, in exchange for access to data. When Ppvw Ransomware infects a computer, it scans for images, videos, and important productivity documents and files such as .doc, .docx, .xls, .pdf. When these files are detected, the ransomware encrypts them. Once the Ppvw Ransomware has encrypted the files on a computer, it displays a ransom note named _readme.txt on the desktop. The note contains instructions on how to contact the authors of the ransomware, typically via email addresses such as support@freshmail.top and datarestorehelp@airmail.cc.

Ppvs is a file-encrypting ransomware infection that restricts access to data (documents, images, videos) by encrypting files with the .ppvs extension. It is a variant of the notorious STOP/DJVU ransomware family. The ransomware attempts to extort money from victims by asking for a "ransom", typically in the form of Bitcoin cryptocurrency, in exchange for access to data. Upon infection, the Ppvs Ransomware scans the computer for images, videos, and important productivity documents and files such as .doc, .docx, .xls, .pdf. The Ppvs Ransomware uses a sophisticated encryption scheme that requires a decryption key and recovery program combination to decrypt the files. Once the Ppvs Ransomware has encrypted the files on your computer, it displays a _readme.txt file that contains the ransom note and instructions on how to contact the authors of this ransomware. The ransom note is typically dropped on the desktop of the infected computer.

Jarjets is a type of ransomware, a malicious software designed to block access to a computer system or files until a sum of money is paid. It was discovered during a routine investigation of new file submissions to the VirusTotal site. Once the Jarjets ransomware infects a system, it encrypts files and changes their filenames. The original titles are appended with a .Jarjets extension. For example, a file named 1.jpg would appear as 1.jpg.Jarjets, 2.png as 2.png.Jarjets, and so on. The specific encryption algorithm used by Jarjets is not explicitly mentioned in the search results, but ransomware typically uses complex encryption methods, often a combination of symmetric and asymmetric encryption. After the encryption process is completed, Jarjets ransomware creates a ransom note titled Jarjets_ReadMe.txt. This text file informs the victim that their files have been encrypted and urges them to contact the cyber criminals.

BlackDream Ransomware is a type of malware that encrypts data on a victim's computer and demands payment for its decryption. It was discovered by researchers while investigating new malware submissions to VirusTotal. The ransomware appends a unique ID, the cybercriminals' email address, and the .BlackDream extension to the filenames of encrypted files. For example, a file initially named 1.jpg would appear as 1.jpg.[G7H9L6ZA].[Blackdream01@zohomail.eu].BlackDream. After the encryption process is completed, a ransom note titled ReadME-Decrypt.txt is dropped. BlackDream ransomware uses an unspecified file encryption method. The note reassures the victim that their files have not been damaged but have been encrypted. It warns that seeking aid with recovery outside the attackers (i.e., using third-party tools or services) may render the data undecryptable. The note implies that decryption will require paying a ransom in Bitcoin cryptocurrency, although the exact sum is not specified.