w32time.dll
Windows Time Service file version info
Library on Windows 1 known copy with hashes 2 Sigma rules name it
Is it the real w32time.dll?
Installed in
C:\Windows\system32\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionWindows Time Service
1 known copy
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\w32time.dll · signed by Microsoft Windows
4c215bbff5a2cb97a39e4f3181060dbb720438b4bab0381b0ea35212173d6d34From 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 w32time.dll in 2 rules in all, for every kind of event; this is the process creation rule CmdID evaluates.