file mernis.tar.gz
Run a full antivirus/anti-malware scan (ClamAV, Sophos, or Windows Defender). Also check for unusual outbound connections using netstat -tulpn (Linux) or netstat -an (Windows). mernis.tar.gz
tar -tzf mernis.tar.gz
However, if the file is unencrypted, located in a public directory ( /var/www/html , /backup/public ), or accessible over the internet, the assumed intent is malicious until proven otherwise. file mernis