Yes, but I think its a tad bit more meta. At the risk of sounding like a total idiot, I'd conjecture that the virophage injects DNA into its victim, a virus. Which in turn injects its DNA into its victim, a cell. The cell explodes with clones of the virophage instead of the target virus, which go on to infect more viruses. Thus systematically reducing the number of viruses with each iteration by cutting into their only replication mechanism.

Yeah, totally, where exactly does the energy flow chain lies there is somewhat beyond me!