d0glun

D0glun is a crypto-ransomware strain first observed in January 2025, believed to be derived from Babuk via an intermediary variant known as Cheng Xilun. It uses AES-256 symmetric encryption and appends filenames with patterns such as .@D0glun@<original extension> or similar. The malware encrypts files rapidly, changes the desktop wallpaper, and drops ransom notes typically named @[email protected], Desktopcxl.txt, or help.exe. The campaign has shown signs of shared infrastructure and code reuse