damn, I did try to flash a new firmware by web and it gave me an error

bmminer not found, restart bmminer ...
bmminer not found= 8462 root       0:00 grep bmminer

I tried with braiinsOS+, and an old version of bitmains firmware but this error persisted. Did at least I got ride of the virus you think?

and how to recover the miner so I can actually use it? it seems 2 chains should be working