pcaui.dll
Program Compatibility Assistant User Interface Module file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real pcaui.dll?
C:\Windows\system32\C:\Windows\SysWOW64\2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\pcaui.dll · signed by Microsoft Windows
829186f4ab7ce3a5297d0733c65f02f63aea936458f67ec4e3d4d641517fba8c10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\pcaui.dll · signed by Microsoft Windows
979ad5d106a110717cb7db72a72c8202fd02b9f2bfa84f3050e23c86befb36e4From 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 pcaui.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.