Hi everyone, this is what I did to clean my website:
I kept trying every wordpress plugin, most of them including this one showed me as clean but my site was still infected and redirecting.
FINALLY I downloaded and installed “Bullet Proof Security” (just search for it in the wordpress plugins search, its free).
When I did the Mscan in BPS (after doing their setup), I would get several “suspicious files” and “suspicious DB entries”. I went thru the “suspicious files” one by one, and deleted either the file or the plugin that they were a part of (deactivate then delete the plugin). Obviously, this can be done for non-critical plugins. If the plugin is critical for your website, then hopefully you have access to the original plugin source so you can re-install a “clean” one once your site is clear.
I dont remember how many files/plugins I had to delete (5 or 6 I think) but eventually I killed the one that was infected (I checked for redirection after each plugin I deleted). I think the one infected for me was either WP-Optimize or Live Chat.
So this is what I did and I am now clean. I run several security plugins now that hopefully harden me to having this happen ever again. Good luck.