Bixbit reached out to me about their firmware, and personally I've never really heard of "asic miner viruses" I mean bitmain is a virus in itself I surely understand that. I know about antbleed, and I know some trash companies like asic miner co can remotely control and reroute their miners back to their wallets.
However apparently these viruses (which I don't see why they could not and would not exist) mainly target asic mining farms and aim to steal hash.
This is their firmware for reference
https://bixbit.io/en/firmware-s9-t9+
& this is a write-up from them on this topic of finding and cure asic mining viruses
https://bixbit.io/en/blog/post/how-to-detect-and-cure-an-asic-virushere's a t9+ (firmware also works on s9) because threads w/o pictures are boring
