The reference to usually points to a significant security research blog post titled "Sailing on the Seven Zips" by Hexacorn , which explores non-obvious ways to use (and abuse) the 7-Zip file format. Key Takeaways from the "server.7z" Research
For further reading on technical tricks, you can visit the Hexacorn blog or check the latest security advisories on the Kaspersky official blog . server.7z
If you are looking for this because you found a "server.7z" file or are downloading the 7-Zip software itself, be aware of recent security developments: The reference to usually points to a significant
: The research notes that 7-Zip can sometimes interact with or preserve NTFS metadata that other archivers might ignore, making it a unique tool for discovering hidden data. Important Security Context (2025-2026) server.7z
: Attackers have recently used the domain 7zip.com (the official site is 7-zip.org ) to distribute infected installers. These "fake" versions install the real 7-Zip but also silently drop Trojans like uphero.exe to turn home PCs into proxy nodes.