: Verify where the file originated. If it was downloaded from a "freeware" site or sent via a suspicious link, it is likely a trojan or adware installer.
: If you must investigate further, use a "sandbox" environment or a tool like ExifTool to look for metadata within the archive without actually executing the contents. 21593.rar
: Upload the file (or its hash if you have it) to VirusTotal . This service will check the file against over 70 different antivirus engines to identify malicious signatures. : Verify where the file originated
: RAR files can contain "Zip Bombs" or executable scripts ( .exe , .scr , .vbs ) that run immediately upon extraction. 21593.rar