They are frequently used for sharing large datasets, software, or media collections because they support multi-volume archives (splitting one archive into several parts) and strong AES-256 encryption.
If you found "54389.rar" on your system unexpectedly, it could be a malicious file designed to exploit such a vulnerability or a container for malware. Attackers often use RAR archives to conceal malware and evade detection by antivirus software. CVE-2025-54389 Detail - NVD 54389.rar
The number is closely associated with CVE-2025-54389 , a medium-severity vulnerability found in the Advanced Intrusion Detection Environment (AIDE) . They are frequently used for sharing large datasets,
It uses advanced algorithms to reduce file sizes more effectively than the common ZIP format. 54389.rar