With an estimated 10 million PCs infected by the stealthy worm known as Conficker, it’s a good bet that plenty of administrators are blissfully unaware that their networks are playing host to the pest. Now, a free service called OpenDNS is offering a new feature designed to alert administrators to the damage and help them contain it.
The company on Monday plans to introduce an addition to its offerings that makes it easy for admins to know if even a single machine has been infected by Conficker. The service will also automatically protect infected machines by preventing them from connecting to rogue servers controlled by the malware authors.
That’s a pretty tall order given that Conficker, which also goes by the name Downadup, instructs its drone machines to report to 250 different internet addresses each day. Without the service, admins would have to manually block 1,750 domains each week, or 91,250 each year.
The service will also help network admins to quickly pinpoint any infected machines by checking their OpenDNS Dashboard. Starting Monday, any networks with PCs that try to connect to the Conficker addresses will be flagged on an admin’s private statistics page. The service is available for free to both businesses and home users.