The Mirai DDoS botnet is back in the news again, after apparently causing trouble for 1 in 20 users of Deutsche Telekom in Germany. About 900,000 of the 20 million in use by the company were affected by a particular variant of the Mirai botnet. The problem is that about 4% of customers were affected, with 4% prevented from reconnecting from the internet and prevented from being able to do so. The company says the problem was caused by a variant of Mirai that could lock up some of its 20 million routers.”]
Source: https://nakedsecurity.sophos.com/2016/11/29/deutsche-telkom-outage-mirai-botnet-goes-double-rogue/