Probably a good idea to confirm the checksum of any file you get from other than the official download URL:
https://downloads.arduino.cc/arduino-1.8.5.sha512sum.txt
The name "filehorse" just makes me think of trojans.
Probably a good idea to confirm the checksum of any file you get from other than the official download URL:
https://downloads.arduino.cc/arduino-1.8.5.sha512sum.txt
The name "filehorse" just makes me think of trojans.