.. /Stordiag.exe
Star

Storage diagnostic tool

Paths:

c:\windows\system32\stordiag.exe
c:\windows\syswow64\stordiag.exe

Resources:

https://twitter.com/eral4m/status/1451112385041911809

Acknowledgements:

Eral4m (@eral4m)

Detection:

Sigma: https://github.com/SigmaHQ/sigma/blob/683b63f8184b93c9564c4310d10c571cbe367e1e/rules/windows/process_creation/proc_creation_win_stordiag_susp_child_process.yml
IOC: systeminfo.exe, fltmc.exe or schtasks.exe being executed outside of their normal path of c:\windows\system32\ or c:\windows\syswow64\

Execute

Once executed, Stordiag.exe will execute schtasks.exe systeminfo.exe and fltmc.exe - if stordiag.exe is copied to a folder and an arbitrary executable is renamed to one of these names, stordiag.exe will execute it.
```
stordiag.exe
```
Use case
Possible defence evasion purposes.

Privileges required
User

Operating systems
Windows 10, Windows 11

ATT&CK® technique
T1218