amsi.dll
Anti-Malware Scan Interface file version info
Library on Windows 2 known copies with hashes 4 Sigma rules name it
Is it the real amsi.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionAnti-Malware Scan Interface
2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\amsi.dll · signed by Microsoft Windows
a2e62b5def99323f66fd5f43f5044aed446b93ec0de01a88aa50ba5e66f7b37b10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\amsi.dll · signed by Microsoft Windows
dd5f528e2ccc027a0b42038511c7fae11032d1277f5d529c539346dddc529e88From 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 amsi.dll in 4 rules, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.