Hello Edo,
smpwservicescgi.exe is used for legacy password services in historical releases of Siteminder.
You may be able to restore the file another deployment in one of your lower environments.
That being said, you would need to determine what caused the file to 'disappear'.
This would not have been from a Siteminder process.
You might want to check with your server security teams to request if a heuristics software scanning is done that removed or quarantined the file for some reason.
James Atchley
SSO Support