If you are looking for this specific update, consider using more secure and community-vetted alternatives:
Users have reported being served .exe (executable) or .apk (Android) files instead of the intended game files (which should be .3ds , .cia , .nsp , or .xci ). Never run an .exe file if you are expecting a game ROM. M_L-BIS-BJJ-USA-_Update12_-ENC-Ziperto.rar
While the actual ROM files are generally considered "clean," the Ziperto website and its associated file hosts are notorious for malicious redirects and pop-ups. If you are looking for this specific update,
The file is a compressed archive typically found on Ziperto , a well-known site for downloading ROMs and updates for the Nintendo Switch and 3DS . File Analysis & Identification The file is a compressed archive typically found
"ENC" suggests the file is "encrypted," and "Ziperto" is the distributing site. Safety Report