Files shared via peer-to-peer networks or "free download" sites are a primary vector for malware. Attackers often hide viruses, trojans, or ransomware inside executable files (.exe) or script files. Since your keyword includes +install , it heavily implies that the file may be an executable installer rather than a video file. Running an unknown .exe or .msi file from an untrusted source is one of the most common ways to infect a computer.
