3sg.7z
Attackers used a nested archive technique (an archive inside another archive). While the outer file (like 3sg.7z ) would be flagged by Windows as downloaded from the internet, the inner archive would not inherit this "Mark of the Web" tag.
Opening it reveals an inner archive (sometimes disguised with Cyrillic characters to look like a document). 3sg.7z
This vulnerability was patched in 7-Zip version 25.00 . Users are strongly advised to update to the latest version via the official 7-zip.org site to ensure they are protected. Safety Warning Attackers used a nested archive technique (an archive