: Before opening, run the file in a "Sandbox" environment (like Windows Sandbox or a Virtual Machine). This isolates the file from your actual operating system.
: Before extracting, upload the .rar file to VirusTotal . This service scans the file against dozens of different antivirus engines simultaneously to detect hidden threats.
: Only download files from reputable, official websites. If this file was found on a forum or a suspicious "free download" portal, it is highly likely to be unsafe.