Guard-Dog

Guard-Dog is detection/alarm program. It is modified version of the original Bloodhound program, Guard-Dog was designed with Invisibility sub-coding. Guard-Dog alerts its owners if anybody is using a workstation or other in-system entrypoint, and indicates which station is active (it cannot be fooled by Invisibility). Guard-Dog does not watch the LDL inputs to a system, and can be eliminated by the standard Killersoftware, if the netrunner detects it.

Source

 * Chromebook Volume 1, pg.91