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dot3ui.dll

802.3 Advanced UI file version info

Library on Windows 2 known copies with hashes

Is it the real dot3ui.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
Description802.3 Advanced UI

2 known copies

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\dot3ui.dll · signed by Microsoft Windows

c0177f3bb3cd3ae9c2fda8b63f89c48ddfe44a176fb1111f3943ffbbc6c848f9

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\dot3ui.dll · signed by Microsoft Windows

dd89db11d7081d08a6acd6d6a3a1b281b8452c4bc57ade7f78a286a71c74ef3d

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.