(and this is important) – any file can be dangerous if it came from an untrusted source.

If you want, tell me the device or where you found Upd05081.bin and I’ll provide specific inspection commands and installation steps.

Copy directly to the root directory (do not rename or put it in a folder). In-Vehicle Steps :

Do not delete immediately. Run a virus scan first. While unlikely to be a genuine system file, some malware hides there. Right-click > Properties > Digital Signatures. If no signature or the signer is not Microsoft, upload to VirusTotal.