To obtain the Access Virus TI ROM (firmware.bin) —typically for use with emulators like

Conclusion: No legitimate antivirus vendor labels a specific malware family as "virus ti rom bin." If your system alerted you to this exact string, it is either:

Locate the .cab file inside the unzipped folder and unzip that as well. Find the file originally named firmware_bin (or _bin64).

Download the .pkg: Get the macOS installer from the official site.