After lying low, SSH botnet mushrooms and is harder than ever to take down

Enlarge (credit: Aurich Lawson / Ars Technica ) Two years ago, researchers stumbled upon one of the Internet’s most intriguing botnets: a previously undiscovered network of 500 servers, many in well-known universities and businesses around the world, that was impervious to normal takedown methods. After lying low for 16 months, those researchers said, the botnet […]