TrackBack new wave of spam to WordPress

O kay, the trackback spammers have new scripts that work now in WP 1.5x. Since I (because of the maintenance effort) is not a friend of blacklists and I'm not even want to rename system files (for future upgrades), I looked around for a plugin that has already been set for the new spam-scripts - TB Spam Blocker 1.1.0 could be the solution. Let's see ... / / Edit: 6 hours later - the same TB spam coming through again, off TB spam blocker, now Spam Karma 2 ..