If the CCP was so advanced that they can implement these attacks in models released as .safetensors, I would assume that the government can pay multiple western frontier labs can show how and where this is done and publish it for anyone to reproduce in a sandbox.
In reality, the attack is much simpler: flood the market with genuine competition so that neutral parties (and their own corporations and that of their allies and potential allies) never have to be enslaved by the US corporations and hence they cannot be forced to join the US in sanctioning China.
This is much less risky as a strategy (imagine how bad getting caught doing the other thing would be) and works way better.