Eve installed some spyware software on 100 USB flash drives and had designed this software to auto load from these drives along with some nude photos. She then painted the logo of a well-known adult magazine on each and randomly scattered these flash drives in the parking lots of several of the big defense companies in her town. What type of malware attack is this and what vulnerability is she trying to exploit in order to get her malware code past the network firewalls of these companies?