In retrospect, it is possible that the Adobe executable was a valid file - I had my Adobe settings set to prompt me when an update was available, and everything about the prompt, the download and even the installation appeared legitimate. I got concerned when the executable was still present in my downloads folder after I installed it, because in the past, the file always disappeared once the installation was completed. Is the executable supposed to disappear or reside on your computer once installed? I grew more concerned when I googled the script name, and found a site that declared it to be malware - that's what really panicked me. I've monitored all of my processes since, and nothing unusual has appeared. I ran a full system scan with Bitdefender and everything was clean.