Security TORX??
http://www.wihatools.com/indexes/indxSecuritytorx.htm

Nice try - almost but not quite.

These screws have straight slots not a bloated pentagram. They're used
by Sunvic to hold the case on actuator heads. I used to repair them and
ended up making my own screwdriver

Like this one?
http://www.wihatools.com/716_IPR_serie.htm

Sparks...