CmdID

CmdID / Files

FileCoAuth.exe

Microsoft OneDriveFile Co-Authoring Executable file version info

Program on Windows 1 known copy with hashes 1 Sigma rule names it

Opens CmdID with your command. It is read in your browser and sent nowhere.

Is it the real FileCoAuth.exe?

file version info and known copies
Installed inC:\Users\user\AppData\Local\Microsoft\OneDrive\21.220.1024.0001\
Signed byMicrosoft Corporation
ProductMicrosoft OneDrive, Microsoft Corporation
DescriptionMicrosoft OneDriveFile Co-Authoring Executable

1 known copy

21.220.1024.0001 · C:\Users\user\AppData\Local\Microsoft\OneDrive\21.220.1024.0001\FileCoAuth.exe · signed by Microsoft Corporation

89622766d8b2a09a1341e1bc77fa40d77eb349edc7f0345ecf78b21f4e52dab7

From 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 process creation rules that name FileCoAuth.exe
highSuspicious Microsoft OneNote Child ProcessTim Rauch (Nextron Systems), Nasreddine Bencherchali (Nextron Systems), Elastic (idea)