One of our local news stations recently deployed an anti-adblock package (Admiral) on their website. It detects the presence of adblock software on the client, and prevents access until you white-list the website. The ads shown by this particular website have previously included malicious ones that attempt to deploy malware. As such, I refuse to white-list their site, having had bad experiences in the past.
While searching for tactics to sidestep this, I stumbled upon two Reddit threads (thread 1 and thread 2), both of which gave me enough information to figure out what was going on. The second thread above points to a repo of domain names used by this third-party solution for serving their adblock detection software. There are enough similarities in the domain names they use that make it pretty easy to pick out patterns. A typical pattern they employ is:
This is similar to how default Docker containers are named. An example is
unequalbrake.com, which also happens to be the domain serving the aforementioned news website instance.
Adding this domain (or list of domains) to your adblock filter list should block the adblock blocker.