Given this article about the NSA's ANT catalog, Which hacking tools are used to infect the BIOS of computers or networking devices?
DEITYBOUNCE, IRONCHEF, SOUFFLETROUGH, and SWAP are hacking tools that can be used to infect servers, computers, and networking devices.
DEITYBOUNCE is technology that installs a backdoor software implant on Dell PowerEdge servers via the motherboard BIOS and RAID controller(s).
IRONCHEF is technology that can "infect" networks by installing itself in a computer I/O BIOS. 
SOUFFLETROUGH is BIOS injection software that can compromise Juniper Networks SSG300 and SSG500 series firewalls.  
SWAP is technology that can reflash the BIOS of multiprocessor systems that run FreeBSD, Linux, Solaris, or Windows.