Steven Zahm@ Bill
Well, the looks of it… this is not CouponDropDown. That is a PC based malware. Your sire is server malware:
https://sitecheck.sucuri.net/results/ocontoareachamber.com/newsandmembers/chamber-members/
Something you’re going to need to deal with as soon as you can.
I recommend the Sucuri Plugin.
After you install, go to its Post Hack tab in the admin.
Generate new security keys and reset all plugins. I also suggest reinstalling WordPress. You can do this on the WordPress Updates admin page. Make sure to enable the “Core integrity checks” on the settings page. This will let you know integrity of the core WordPress files are good.
After you’ve cleaned your site do another scan and then keep an eye on the Sucuri Dashboard page. It let you know when files have been added, changed, removed.
Hope that helps!