A website I just set up sometimes (reliably, but not every time) automatically refers to one of several spammy websites when I click on the "Blog" link. (WARNING: Some of the spam websites are not safe for work NSFW.)
Here is an example of the spam web redirect. (Screenshot SFW)
I have done a few searches, but I don't even know what I'm looking for in this case - never seen it before.
I did look at the database back-up, and believe there MAY be a pile of junk in there needing to be removed. Not sure how to determine this, or what to remove. Also, not sure if deleting that material would fix the problem.
Thanks for your input,
Liz