custom content eyebrows, but I never download CC

Okay, so I've been playing the Sims 4 on the same computer for well over a year, and I've never downloaded custom content. My filters have always been set to not allow custom content, and whenever I have downloaded sims from Deligracy on the gallery, nothing has ever crept through, until recently. I have these cc eyebrows in my game, or at least I assume they're cc, considering that the thumbnail is redish eyebrows while all the maxis ones are black. They don't have the same maxis texture either. 

So the problem: I didn't download any cc. I havent downloaded much of anything from the gallery in so long, and this came right after i installed Realm of Magic. I don't know where they came from, which led me to be paranoid, uninstall and reinstall the Sims 4, wipe my computer completely, and uninstall all programs, and it was still there. 

I just bought this computer and don't want to download anything, regardless of how secure anyone says, so CC Cleaners is kinda out for me. I'm just unsure of what the cause could be? and if anyone has found a fix?