Please note, this is a STATIC archive of website www.softperfect.com from July 2018, cach3.com does not collect or store any user information, there is no "phishing" involved.
It creates this file when checking folder's writability. Normally it's deleted automatically, and it is not created unless you have the Check for write access option turned on.
Thanks for this info!
I thought I got a virus, scanned all my systems, holy crap... My heart beats slower as I tested the fact that the scanner creates the file and everything is safe.