Hello guys, we are having the same situation with one of our websites.
The site is aristei.com[.]ar and honestly we have checked everything in the server, run tools like patchman, sucuri, and also inspect the code, and nothing is wrong there. We asume this is a mistake. Please can you help us to remove this website from this blacklist, or if there is a real reason help to understand to correct. Many people is being affected by this action. Hope you can understand and help us.
Hi,
I am removing aristei.com[.]ar from our blacklist 
Just a guess…
IP ban due to shared hosting.
The main cause was Locky ransomware here: aristei.com[.]ar/njdshf73 - but it might have been breached because of a shared hosting, that I do not know 