About RMAN utility logs
RMAN uses a command language interpreter, and it can be run in interactive or batch mode. You can use the following syntax to specify a log file on the command line to record significant RMAN actions:
msglog 'logfile_name'
Ransomware attackers specifically target and attempt to destroy backup systems to increase the probability of payment. Hardening your system is critical. Please ensure you have reviewed your platform security using the Security Hardening Checklist