I can confirm Creative Cloud has added to my /etc/hosts file.

Adobe secretly modifies your hosts file for the stupidest reason: https://www.osnews.com/story/144737/adobe-secretly-modifies-your-hosts-file-for-the-stupidest-reason/

@marcedwards nslookup can't find
detect-ccd.creativecloud.adobe.com

and

222.29.117.166.in-addr.arpa name = a2b59aaaf70266dcf.awsglobalaccelerator.com

Very strange that Adobe would use such a weak tecnique as a form of license enforcement. I assume they spread more ofthese golden eggs in many places to force you to install the software on a new machine instead of copying the obvious adobe directories.

@jfmezei It’s not license validation. It’s just a check so they can change their website behaviour and probably collect additional web analytics.
@marcedwards adobe controls the dns for all of adobe.com, they can change the zone file whenever they want.
The app doesn't care if "detect-ccd.creativecloud.adobe.com" is translated by local host or remote dns . But not having that host in the worldwide DNS system requires that /etc/hosts be patched to contain the translation. It is very stupid.
@jfmezei Yes, incredibly stupid. I would like to have heard the discussion when it was being planned.