: Use VirusTotal to scan the file. It will check the file's hash against over 70 different antivirus engines.
The use of the .7z (7-Zip) format is a common tactic used by attackers to bypass basic email filters and antivirus scanners that may not automatically decompress or inspect deep archive layers. If you have encountered this specific file,
: Many malicious .7z files are password-protected (even with a simple password like "123"). This encryption prevents security software from seeing the "payload" inside until the user manually extracts it.