This is part 35 in the series of “Beyond the good ol’ LaunchAgents”, where I try to collect various persistence techniques for macOS. For more background check the introduction. TL;DR - This is a practically completely useless persistence, as this can be only set and enabled when SIP is actually disabled. On the other hand I still find it a pretty amazing way to persist, as we can do that by putting a binary into NVRAM and get that executed. Here follows the details of the discovery.