A rare instance of ransomware targeting Linux-based file storage systems has been spotted, spreading via 15 separate but related campaigns. Researchers at Intezer Labs dubbed the malware QNAPCrypt, after QNAP, one of the larger NAS server vendors out there. The adversaries behind the effort are continuing their depredations on an ongoing basis, so targets are expected to proliferate. The ransom note is delivered solely as a text file left on the machine, without any message on the screen.
Source: https://threatpost.com/linux-ransomware-nas-servers/146441/