Some exploits are running out there, but I'd say unlikely in the example you cite. The chances that the nameservers for the Telegraph and Walmart aren't patched this far into August, are miniscule. Non-zero... but very small.
I suspect something else did what you saw.
Actually that was me. I've been having fun with all of this over the past few days. This really isn't FR you guys are reading and posting to. It's another site I setup to look like it.
Ah, but a major point here. It *IS* easy to tell which implementations of DNS are running on servers. That’s the point. Identifiable Name Servers that haven’t been patched(Exploitable) versus those that have already been patched(NON-Exploitable).
bruinbirdman, You can tell if you’re ISPs DNS server(s) have been patched or not by using the tool on doxpara.com.
bruinbirdman,
You haven’t given enough information about your problem for most people to day anything other than shoot in the dark.
Another sidenote. The backdrop to the DNS flaw from early July culminating in the coup-de-gras with proof of exploit, etc., yesterday at the Vegas convention has been utterly fascinating(at least to me). Stuff that could make a geek-worthy thriller movie. For a quick preview, read as many of the articles you can find on cuil.com or google search “DNS Flaw” from July-now. Focus on most of the security-related sites.