9/12/2023 0 Comments Cgsecurity![]() ![]() Consequently, victims are coerced into paying a ransom (unless they can find a third-party tool online or possess a data backup). Ordinarily, files cannot be decrypted without purchasing the required tools from cybercriminals. ![]() However, the file should not contain important information and should be less than 1 MB in size. The note also lists two email addresses for contacting the attackers: and Additionally, the ransom note mentions that victims are allowed to send one encrypted file for free decryption. The note indicates that the decryption tools, comprising of decryption software and a unique key, would cost $980 instead of $490 once this time limit expires. Jypo's ransom note instructs the targeted individuals to communicate with the threat actors via email within 72 hours. Screenshot of files encrypted by Jypo ransomware: An illustration of how Jypo renames files: it renames " 1.jpg" to " 1.jpg.jypo", " 2.png" to " 2.png.jypo", and so on. Thus, Jypo may distributed in conjunction with information stealers such as RedLine and Vidar. Moreover, our investigation determined that Jypo is part of the Djvu ransomware family. Our discovery of Jypo came from analyzing malware samples submitted to VirusTotal. jypo") to filenames and drops its ransom note (" _readme.txt"). Also, Jypo renames files by appending its extension (". Jypo is ransomware that prevents victims from accessing data by encrypting it. ![]()
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