pdh.dll
Windows Performance Data Helper DLL file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real pdh.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionWindows Performance Data Helper DLL
2 known copies
10.0.19041.488 (WinBuild.160101.0800) · C:\Windows\SysWOW64\pdh.dll · signed by Microsoft Windows
651148c4ccda98c4d85a456e8ed77886b2f3ed4a0eecd6eed39c1d9d8f2b929310.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\pdh.dll · signed by Microsoft Windows
55c3eb94cf4d2f916364f4832bea1355c1147f9a4fb6a7e4ac240f4e08d2ae6cFrom 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 pdh.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.