I tried to upload an image or two to the astrometry.net blind plate solver website this evening and received a message that the site was hosting malware.
Standard false alarm. Happens all the time. Nothing to see here, move along please.
This is one reason why I run local astronomy.net servers on my TCS, laptop and two main analysis machines. If you can spare a few gigabytes of disk space I strongly recommend that you do so as well.