If you actually have this file, Option 1 is the most practical. If you are creating a clicky, engaging post, go with Option 3 .
A story about a suspicious email or download containing a .rar file named FLVGRA40 . FLVGRA40.rar
This is a challenging title for a blog post because "FLVGRA40.rar" appears to be a specific, likely obscure or corrupted, file archive rather than a mainstream topic. If you actually have this file, Option 1
Running a scan to ensure it’s not malicious (mentioning VirusTotal ). If you actually have this file
Ask readers to guess what it is, or if they have ever encountered similarly named files.
Explain that RAR files are popular for hiding malware because they can bypass some email scanners. The Lesson: Never open files from unknown sources.