AnySearch is embedded in High Sierra

mac OS: High Sierra (latest)

I cannot get rid of AnySearch in Safari.

BTW, I have done these:

1. Checked eXtensions in Safari's Preferences and it's not there
2. Checked /Library/applications and it's not there
3. Checked ~/Library/Application Support and it's not there

And, every time I do CTRL-t to get a new TAB, I see my TopSites and in 1 couple of seconds, AnySearch takes over and replaced itself.

Please advice.