: Before extracting, upload the file to VirusTotal to check it against dozens of antivirus engines.
: Zip files are a common delivery method for malware. If you received this file via an unsolicited email or a suspicious link, it may be a "trojan" designed to look like a game. Safety Checklist File: In.Nightmare.zip ...
Because it is a .zip archive, you should exercise caution before opening it if you did not download it from a trusted source. : Before extracting, upload the file to VirusTotal