However, the three-hour limit appears to be a scareware tactic. At the end of an encryption process, NitroRansomware will change the user’s wallpaper to an evil or angry Discord logo.”Īccording to an analysis by Bleeping Computer, the ransomware verifies that the provided Discord gift codes are valid, and decrypts the files using an embedded static decryption key. “The malware appends the ‘.givemenitro’ extension to the filenames of the encrypted files. “Upon executing the ransomware, it will encrypt the victim’s file and will give three hours to them to provide a valid Discord Nitro ,” explained Heimdal Security researcher Cezarina Chirica, in a Monday posting. It’s being distributed as a purported free gift-code generator for Nitro. Initially spotted by MalwareHunterTeam, other researchers looked into how the code works. The NitroRansomware operators are apparently extremely interested in Nitro subscriptions. While it’s free, users can purchase an upgraded “Nitro” subscription for $9.99 that allows larger upload sizes, HD video streaming, better emoji options and the ability to “stand out” via promotions on servers. Join experts from Digital Shadows (Austin Merritt), Malwarebytes (Adam Kujawa) and Sift (Kevin Lee) to find out how cybercrime forums really work.
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