CmdID

CmdID / Files

taskschd.dll

Task Scheduler COM API file version info

Library on Windows 2 known copies with hashes 2 Sigma rules name it

Is it the real taskschd.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionTask Scheduler COM API

2 known copies

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\taskschd.dll · signed by Microsoft Windows

906bcc87ef1b194133a3cf3d20e6ea5334da1336a1dbe06ab0f1155010cce57e

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\taskschd.dll · signed by Microsoft Windows

a0c8db818eb745d9bf684a21da6affef134fda83914aa9e2d30876ee11f850b2

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

Sigma names taskschd.dll in 2 rules, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.