I will give them the information this Sunday and get the actual folder contents then.
The folder name was the company name and phone number (Company Name Net 1-800-...-.... where "..." were actual numbers) and includes about 6 or 7 files
I only remember ccleaner.exe,
a "company name" batch file (contained lots of set...=%temp%... etc),
a "company name" text file (did not look at contents),
the hosts file (with several pages of redirects),
a "company name" exe file
I renamed the folder and each filename to append to the end: "- DO NOT OPEN"
I cold booted the machine, rechecked to ensure the renamed folder / files retained the new names;
and finally did a quick check for new and hidden folders (then reset to do not show hidden folders/files)
I then left.