Masscan Tool Army Maj. Jared Hrabak, a cyber officer with the Army Reserve’s Cyber Protection Team 185, uses a common network scanning tool called “masscan” to enumerate a network during his unit’s virtual battle assembly at Joint Base Langley-Eustis, Va., Aug. 9, 2020. SHARE: Download: Full Size (0.97 MB) Credit: Army VIRIN: 200809-A-HU020-518C.JPG Photo Gallery