Cartographer

Cartographer is utility program is not anti-system software but Cartographer will supply a complete system map, If successfully run (program STR+D10 vs CPU INT/2 +010) against the CPU of a system. This gives the location (but not designation) of all MU blocks, ICE, remotes, etc. A second successful roll must be made in order to specifically ID all the features. It must be run inside the datafortress to work.

Source

 * Chromebook Volume 3, pg.80