Virtual disk files are locked containers that shield the items inside from online or local security defenses. The trick can help adversaries deliver malware invisibly to a target's computer.
Vulnerability analyst Will Dormann last week published research on VHD and VHDX files being treated like a black box by Windows and the operating system.
The VHD bubble
The details stirred the interest of security researchers who used real malware encapsulated in a VHD file to test the detection rate o ..