ksuser.dll
User CSA Library file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real ksuser.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionUser CSA Library
2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\ksuser.dll · signed by Microsoft Windows
d284e0301679ecef1b763addd6bece589bb16e4b7d5c4fbe3d8684121e8f0b7410.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\ksuser.dll · signed by Microsoft Windows
dd28805fc6f5fd70ddc8c87fe1f5561d8614bdba65284cd6a7c0c73aea427a07From 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 names ksuser.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.