If it arrived via email, verify the sender. Even if it looks like it's from a friend, their account may have been compromised.
The Hidden Dangers of Randomly Named Files: Spotlight on "bfdbfdbfdbdasc.rar" bfdbfdbfdbdasc.rar
If you encounter this file, follow these safety steps immediately: If it arrived via email, verify the sender
Run a deep scan of your system using a reputable security suite. If it arrived via email