Please. I don't see how the full version makes any difference.
And I'm not that good at Putty, and don't have the time to drill down into linux to find these logs.
I had no mod_rewrite rules and it looked for that file.
I added some and it looked for that file.
I don't see any circumstances where web software would try to inject files into a web html site, and then proceed to look for them there.
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Here is MT's response to a TT I submitted:
Thank you for contacting (mt) Media Temple.
This error is the result of using your server's IP address along with the cPanel account (~zarddaadm) to preview your site while mod_userdir is disabled. You can enable mod_userdir in WHM by going to Security Center > Apache mod_userdir Tweak. Once enabled, you should not find that error being logged when visiting these pages. You can find some additional information on mod_userdir in the following cPanel documentation.
Apache mod_userdir Tweak - Documentation - cPanel Documentation
If you have questions about the information within this support request or any of your (mt) Media Temple services, please feel free to contact us at any time. We are here 24/7 to assist you. Thank you for choosing (mt) Media Temple for your hosting needs.
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I subsequently added some custom 404 pages and supposedly it no longer looks for that file in my web folders
================= More from MT =========================
Based on research, the 'sys_cpanel' in the error message you were seeing is normal behavior. This appears to happen when cPanel serves it's own error pages. We see that you were able to resolve the issue by specifying a custom 404 page in your .htaccess file. We are no longer seeing 'sys_cpanel' appended to the 404 error entries in your logs.
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Bottom Line.......... There is something wrong somewhere, cause no WAY should cPanel look for a system file in user's folders......lol....
Maybe somebody can come up with a REAL explanation as to why this is happening..........
z