Thank you for the JRT log and the negative results of the AdwCleaner scan. I see no reason, based on the results of the scans that we have run, to believe that your computer is infected.
Unfortunately, credit card fraud is very prevalent in these times. I have had my card compromised twice, but in neither case was it associated to malware on my computer. There are many ways for the bad guys and gals to acquire credit card information: skimmers, disgruntled employees of companies processing credit card charges, etc.
Personally, I would rest easy at this point, in terms of my computer. You might find this post
concerning computer security by Quietman7, one of Bleeping Computer's foremost security experts, to be of interest.
I protect my computers with paid anti-virus, anti-malware, and anti-exploit software. You can learn the advantages, and purposes, of each from this post
. Combining all three is considered "layered security." It is my motto that it is easier to prevent an infection than to clean up afterwards.
It is also important to have recent backups, at the very least, of all of your data. Windows and programs can be reinstalled, but data once gone, is gone forever, unless there is a copy of the files or a complete data backup somewhere, preferably on an external drive, that is connected only long enough to backup or restore, thus avoiding the backups from being infected. My practice is to do full system image of all partitions on my computer each week, and retain several generations of images, just in case when the most recent backup(s) was/were made, my computer was infected, but the infection had not yet been discovered.
Is there any other assistance I can provide?
Have a great day.