cscobj.dll
In-proc COM object used by clients of CSC API file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real cscobj.dll?
C:\Windows\system32\C:\Windows\SysWOW64\2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\cscobj.dll · signed by Microsoft Windows
882978fd8316665c4d4d45b84e23568a1041dd92daf81c842b325a276d7e983210.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\cscobj.dll · signed by Microsoft Windows
bd9cb98127e9efa0debbf17b8b32cab7b5b83c44a3b0b2da8e36c5fee3029943From 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 cscobj.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.