avrt.dll
Multimedia Realtime Runtime file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real avrt.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionMultimedia Realtime Runtime
2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\avrt.dll · signed by Microsoft Windows
1da479a2526ce20c6b97c5e8031ef4dd4189ced96fc59b6003d1e702ed0298fb10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\avrt.dll · signed by Microsoft Windows
4ffdab8b40c31fc0bd560311cb731f7f11ed7352efe963e05c3991258b2e4f10From 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 avrt.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.