The infamous blue screen of death (BSOD) on computers belonging to a company in the medical tech sector was the tell for a malware infection that spread across more than half the network.
The malware was hiding its modules in WAV audio files and spread to vulnerable Windows 7 machines on the network via EternalBlue, the exploit for SMBv1 used in the devastating WannaCry and NotPetya cyber attacks from 2017.
