Just a quick question, is there an easy way to use Qualys to to query servers if they have Microsoft DNS installed?
Use this: "openPorts.detectedService:DNS_Server"
To further narrow down the list you get from John's query, you could try to add "and software.name:'Microsoft DNS'" or different variations of that.
You could also try searching the Applications section under VM -> Assets.
Additionally, you could search your account for any of the following QIDs:
15088 Microsoft DNS Server Recursive Query Denial of Service Remote Discovery Exploit Available 90695 Microsoft DNS Resolution Remote Code Execution Vulnerability (MS11-030) Remote Discovery Authentication Required Patch Available Exploit Available 15037 Microsoft DNS Server Vulnerable to DNS Cache Poisoning Authentication Required 15038 Microsoft DNS Server Parameters Information Gathering
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