wtsapi32.dll
Windows Remote Desktop Session Host Server SDK APIs file version info
Library on Windows 2 known copies with hashes 2 Sigma rules name it
Is it the real wtsapi32.dll?
C:\Windows\system32\C:\Windows\SysWOW64\2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\wtsapi32.dll · signed by Microsoft Windows
d4e754ad5aa18aa1cf06cc42a7042ed01dbacdd8771c9bfc931c2709953c2fa010.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\wtsapi32.dll · signed by Microsoft Windows
ea14059ab9ff886189088d9812880837dac54851457a5f446e506cd613d18b97From 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 wtsapi32.dll in 2 rules, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.