: Before touching the file, upload it to a multi-engine scanner like VirusTotal to see if it contains known threats.

: If you are a researcher, only open the file in a secure, isolated virtual environment (sandbox) to prevent host infection. Film Background (Context) Did I get a virus with what happend ? - Microsoft Q&A

: Recent high-severity vulnerabilities (such as CVE-2025-0411 ) allow attackers to bypass Windows security features (like Mark-of-the-Web) when files are extracted using older versions of 7-Zip. This can lead to the silent execution of malware like SmokeLoader or ransomware.

If you must investigate the file, follow these steps to protect your system: