Can the malicious video file be an actual mp4 file? We&#x27;re accepting video and running it through ffmpeg, however we first verify the file is an mp4 using <a href="https:&#x2F;&#x2F;golang.org&#x2F;src&#x2F;net&#x2F;http&#x2F;sniff.go" rel="nofollow">https:&#x2F;&#x2F;golang.org&#x2F;src&#x2F;net&#x2F;http&#x2F;sniff.go</a>