No, I know what it is. (though reading that post again, I would myself say the same thing). 😛 What I meant was, that there could be a malicious program which could do that. The question was, if it was somehow associated with WordPress, any user created plugin, other additions, or if my computer was infected with something that did that. (I knew, it was extremely unlikely, but I did not want to dismiss that as a possibility.)
I deleted it manually in the editor, and it has not reappeared. I will keep a tighter look on my plugins and be even more selective when adding new ones.
Figured it out myself in the editor. 🙂
Oh, thank you. 🙂 That solved the whole problem. 🙂
Sorry for such a stupid question which I could easily have figured out myself.
