WofUtil.dll
Windows Overlay File System Filter user mode API file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real WofUtil.dll?
C:\Windows\system32\C:\Windows\SysWOW64\2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\WofUtil.dll · signed by Microsoft Windows
1135e775e3b48d196ab0f5ea90d05f55f8eb59c229aac5132f40d5eda5ad48c710.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\WofUtil.dll · signed by Microsoft Windows
ea4dd90e10593315a46632dbf29bbc39c2913eee6fb4e1f9bdde806b0e334a03From 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 WofUtil.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.