I’m Afraid I Can’t Do That, Dave: When Firewall Upgrades Go Wrong

A client called this morning saying "I clicked on a security alert and now I can't get on the internet..."  Of course, my spideysense said "Ah!  Classic Malware!"

However, when I got on-site, there was no malware on the machine. 

A quick glance over the Autoruns turned up nothing out of the ordinary, MalwareBytes turned up nothing, doing a netsh winsock reset did nothing to improve the situation.

Microsoft Patch Breaks Zone Alarm

Got a call from a client today complaining that he could no longer access the Internet. He's running Zone Alarm 7.

Trek out to the site and lo and behold, we can ping IP addresses thru the firewall, but we can't resolve any names. Turns out DNS had a big hole in it, and it's been patched by the major vendors, Microsoft among them.