The vulnerability exists in how WinRAR versions prior to handle file expansions.
The file is a compressed archive frequently associated with a specific exploit for a high-severity vulnerability in WinRAR (tracked as CVE-2023-38831 ). What is 49759.rar? 49759.rar
While many versions of "49759.rar" online are harmless PoCs used by researchers, the same naming convention is used by threat actors to distribute real malware. The vulnerability exists in how WinRAR versions prior