In sci fi TV tropes nanites or nanoscopic are autonomous molecules that can shut down robots by injecting them into their positronic brains, where they house all the important functions that dictates the behavior for each robot.
Often the nanites are stored in fluid form and guarded with powerful lasers to prevent misuse.
I am not sure why a computer virus can't do the termination part that they require nanites for the job but then could the robot come up with ingenious way to defeat the nanites that is wrecking havoc inside their chassis?
It seems to me that the nanites are not causing any physical harm like acid does. So. my question is: Can robots develop a countermeasures for nanites?