vss_ps.dll
Microsoft Volume Shadow Copy Service proxy/stub file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real vss_ps.dll?
C:\Windows\system32\C:\Windows\SysWOW64\2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\vss_ps.dll · signed by Microsoft Windows
760351d62579c07abb4c61abd285e51409e0efc6d59dda1d5ef9e9080bb7cc8310.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\vss_ps.dll · signed by Microsoft Windows
91e7efefdf36976054ed5daf82b0fc873c13c76bb3cb081ab521519f1378e7deFrom 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 vss_ps.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.