newbreed

That's a norm, experienced posters always rename files, the more discreet and nonsense the name is, the better. It makes it harder for content owners to find it using google or other search engines, it reduces the risks of it being blocked by filehosters etc.

It is not uncommon for them to rename files to even something like "my_vacations_001.avi" lol. So "newbreed" is actually not the wierdest of all.

But it does some help too - usually one poster uses only one renaming template, and it makes it easier to find him. Search for "newbreed" but not on google, do it at pornbb and other places like this, probably you'll get better results leading directly to where your stolen content was posted. Also, since you're saying "all of them" most likely that means it's not actually "all of them" but just one person stealing from you who's responsible for 90% of piracy of your stuff (because if there were many they'd use different renaming templates). That's quite typical too - it happens often that somebody gets fixed with your stuff for some reason and posts it all over the place, while others just repost what that guy stole. Trace him down, kill his password, and most of your problems will go away.

ripper?

Newbreed appears to be more then one person. Here is what they post along with some of their uploads:
"We do exist. We do erotic Pic and Vids releases. We don t care
about nuking rules. We don t care about dupes. We don t care
about trading. We care about the friends of erotic culture.
Download our releases and enjoy them, but better don t trade them,
but if you think the releases are worth it, spread them.
We say hello to the people at
hUSHhUSH, CuMBuCKeTS, CiCXXX, DivXfacTory
ASCii BY:
muffin of ASCiiANCE"
Someone told me they are "rippers" but not sure what they meant by that.

Looks like you got noticed by some release group. It's not one person, but since they're all connected (by their "brand" and an IRC channel where they discuss who's going to rip what), for practical purposes they can be regarded as such.

Recommendations are still the same - trace them down, find the loophole they're using to access your site(s) and close it.