These files are often password-protected to bypass antivirus scans. You can use tools like PeaZip or WinRAR to view the Table of Contents (TOC) before extracting, provided the file names aren't also encrypted. Safety Recommendations
Upload the RAR file to VirusTotal to check for known signatures of malware. Echozy.pw.rar
Avoid running any .exe or .bat files from this archive without verification. These files are often password-protected to bypass antivirus