How do I get rid of KSFETCH?

This seems to be a better / easier way. In finder go to /Users/YourUserName/Library/Google

Then right click "get info" or CMD I and change the permissions on the "Google Folder" too read only and lock it.

You can also do this via terminal for advanced users.

This works for Hands Off or Little Snitch in fact you can delete "all the rules" for KsFetch and it hasn't come back for me in a long time.

This may interfere with Google software updates so if your Google stuff breaks just change the permissions back and update. Then change back if necessary.

You can also use the wildcards in Hands Off and Little Snitch they do work as well. If you the recent versions. Google it to learn how to use the wildcards.

You have a working solution in this post :

ksfetch ( nobody ) how do I get rid of it

Best regards

Loïc

Managing updates in Google Software Update - Google Help