tdh.dll
Event Trace Helper Library file version info
Library on Windows 2 known copies with hashes 2 Sigma rules name it
Is it the real tdh.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionEvent Trace Helper Library
2 known copies
10.0.19041.329 (WinBuild.160101.0800) · C:\Windows\SysWOW64\tdh.dll · signed by Microsoft Windows
8affe60addcf56009453146d0bacf80afba8511b2bf08096d7807824f1da676c10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\tdh.dll · signed by Microsoft Windows
bd3a889fbf6936f25e85e62e8d335a2f2a1215f6037787702d91024caffedd50From 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 tdh.dll in 2 rules, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.