Pandora Armstrong (Superheroine series)

She was an astronaut, but in a mission accidantly ifected by an unknown alien metallic parasyte. She's almost dead because her damaged spacesuit, but the nanosized parasyte swarm use her body as a living fortress to defend itself from any threats, so they regenerated her. Pandora's all abilities are side effects of the infection. The parasytes turned into symbiotes quickly because they cannot live without the host body. They continues to evolve, thus improving Pandora's abilities.

Awakening superpowers: regeneration, immunity to illnesses/radiation/poison/acid, bulletproof skin, superstrength, superspeed, she don't need to breathe/eat or drink (she can, but don't have to), possible to consume electricity/heat energy and contain.