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msctf.dll

MSCTF Server DLL file version info

Library on Windows 2 known copies with hashes 1 Sigma rule names it

Is it the real msctf.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionMSCTF Server DLL

2 known copies

10.0.19041.488 (WinBuild.160101.0800) · C:\Windows\SysWOW64\msctf.dll · signed by Microsoft Windows

132345349278d4f12bb5138c100c607316abf1f9382b74f03a89b233ea5d1093

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

cf1d60bb24cff2bf0d1cb3ce85e756dd19fb4de828aaead16aad4a9b581af525

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.

What detects it

Sigma

Sigma names msctf.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.