{"id":26555,"date":"2019-04-04T21:43:58","date_gmt":"2019-04-04T21:43:58","guid":{"rendered":"http:\/\/2361923c-19f7-4bc8-abbc-103e0aadc8a5"},"modified":"2019-04-04T21:43:58","modified_gmt":"2019-04-04T21:43:58","slug":"hacker-group-has-been-hijacking-dns-traffic-on-d-link-routers-for-three-months","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/hacker-group-has-been-hijacking-dns-traffic-on-d-link-routers-for-three-months\/","title":{"rendered":"Hacker group has been hijacking DNS traffic on D-Link routers for three months"},"content":{"rendered":"

\"World<\/span><\/a><\/p>\n

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For the past three months, a cybercrime group has been hacking into home routers –mostly D-Link models– to change DNS server settings and hijack traffic meant for legitimate sites and redirect it to malicious clones.<\/p>\n

The attackers operate by using well-known exploits in router firmware to hack into vulnerable devices and make silent changes to the router’s DNS configuration, changes that most users won’t ever notice.<\/p>\n

Targeted routers include the following models (the number to the side of each model lists the number of internet-exposed routers, as seen by the BinaryEdge search engine):<\/p>\n

D-Link DSL-2640B<\/strong> – 14,327<\/em>
D-Link DSL-2740R<\/strong> – 379<\/em>
D-Link DSL-2780B<\/strong> – 0<\/em>
D-Link DSL-526B<\/strong> – 7<\/em>
ARG-W4 ADSL routers<\/strong> – 0<\/em>
DSLink 260E routers<\/strong> – 7<\/em>
Secutech routers<\/strong> – 17<\/em>
TOTOLINK routers<\/strong> – 2,265<\/em><\/p>\n

Troy Mursch, founder and security researcher at internet monitoring firm Bad Packets, said he detected three distinct waves during which hackers have launched attacks to poison routers’ DNS settings –late December 2018, early February 2018, and late March 2018.<\/p>\n

Attacks are still ongoing, he said today in a report<\/a> about these attacks.<\/p>\n

How the attacks work<\/h3>\n

The point of this router hacking campaign was to inject the IP addresses of rogue DNS servers inside people’s routers. Mursch said hackers have used four IP addresses so far.<\/p>\n

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On these four rogue DNS servers, hackers replaced the IP addresses of legitimate sites with the IP addresses of clone sites they were running.<\/p>\n

A normal attack would look like this:<\/p>\n