How to Clean Malware for.dontkinhooot.tw

Numerous sites are affected already by for.dontkinhooot[.]tw & lovegreenpencils malware, directing users to:
https://for.dontkinhooot[.]tw/walkers?id=0092
https://irc.lovegreenpencils[.]ga/55ryery?id=22584&rs=2346
This contamination affects PHP files, JS files, wp_posts tables, site URLs.