Specific fic: Tony becomes a computer program/in satellites

[penumbria.livejournal.com]

I am looking for a fic that I read a while ago. Tony is kidnapped (by AIM and maybe someone else working with them) and is injected with something (variation of Extremis?) and he kind of becomes a computer program, he sort of mutates. He shuts down all electrical power and is inside some satellites. He loses control for a bit. The Avengers are on the quinjet looking for him and it crashes. And I remember there was a blonde woman taunting Tony and she was one of the researchers, I think.

I am pretty sure it was a WIP and relatively long. It might have been gen or Tony/Pepper or Tony/Steve but I am not sure. Does anyone know this fic?