CmdID / Files

System.IO.Compression.dll

.NET Framework file version info

Library on Windows 1 known copy with hashes

Is it the real System.IO.Compression.dll?

file version info and known copies

Installed inC:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.8\

Signed byMicrosoft Corporation

ProductMicrosoft .NET Framework, Microsoft Corporation

Description.NET Framework

1 known copy

4.8.4084.0 built by: NET48REL1 · C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.8\System.IO.Compression.dll · signed by Microsoft Corporation

ae6a404d03d3f523c44dd1b3447f9ca37bc8d0c044e74b2c4b2bb86c55438058

From the file’s version info and the copies recorded by xCyclopedia (MIT). A copy in another folder, signed by someone else or with another hash is not necessarily malicious, but it is worth a closer look. In Ceplin, "<sha256>".whatis() says which known copy a hash is.