I've seen things like this. And I've tried all known virus scanners and protection tools. None work. You're not crazy. Perhaps the solution is older hardware (EBAY), Non x86 SBCs running Linux https://en.wikipedia.org/wiki/Comparison_of_single-board_com..., a Purism Laptop: https://puri.sm/, and/or hardware which is so cheap such that you don't care if it gets bricked, i.e., spending $50 for a 10-pack of Raspberry Pi Zero's ($5 each) - https://www.raspberrypi.org/blog/raspberry-pi-zero/ Welcome to 2018.