https://www.theregister.co.uk/2018/05/30/spamcannibal_hijack/

SpamCannibal – a defunct service that issued blacklists of known spam servers – was hijacked early on Wednesday morning, spewing its own unwanted crap in the process.

El Reg was tipped off by a reader who told us that SpamCannibal is "pumping out Blacklist notifications for some of our servers and then when you go to spamcannibal.org, you get spam." Visiting the site earlier today flung fake Adobe Flash updates at our sandboxed browser, downloads no doubt riddled with malware, so beware.