I thought I found a terminal message having to do with Cerberus somewhere in the Binary Helix
Han Olar spells out how BH found the drifting ship, Cerberus later bought samples off of them after the discovery.
You may be right, but I'm curious if there's anything that makes it clear one way or another.
Yes.
"Shepard, having this incapacitated volus running around our battlefield could compromise us!"
The Samara recruitment mission, she straight up stresses the 'race' of the Biotic God in question. It's one line but it provides a infinitely more deeper look into that sort of personality she has, she believes in what Cerberus stands for, she acknowledges that right after the first prologue mission. She's humanity first, and has no qualms when it comes to ethics to begin with, starting off she will kill a old friend for a act of betrayal, she will sabotage what appears on the surface as a renewed Batarian reintegration with the greater galaxy, before the terror plot even comes into play.Basically if you look at her history, what she believes, what she says...it comes across as pretty clear she's a hardliner in Cerberus for good reason, she's the Illusive Man's top agent for a reason.
She will do whatever is asked of her with little to no reservation as long as her own personal needs are met, and has no real qualms.
So yeah, I think she pretty much writes off any Cerberus attempt at harness the Rachni to their aims because of pragmatism, or at least that's how she would view the situation.