OSX - find out what starts a process
You could try Activity Monitor located in the Utilities folder.
Select View &gt; All Processes then filter on AdSSO-v2. When you found it, select it then click the Info button (or ⌘-I). In the window that pops up select the third tab. (Open files and ports). You will see a list of files and where they are located. The culprit may be in that list.  

If that doesn't work try selecting Autocad and do the same.