Recently, security researchers have warned that as many as one million organizations around the world have been infected with a new computer botnet. Check Point, the UK's Internet security company, has discovered a new botnet that can control IoT devices, most notably Internet routers and remote-controlled cameras, to launch large numbers of DDoS attacks in a short period of time.
The principle of DDoS: The DNS server is paralyzed by a large number of data requests, so that other users cannot query the IP address through the domain name, resulting in inaccessibility of the website.
The researchers named the attacking botnet IoTroop and called it the fastest growing botnet he's ever seen. Studies have shown that these new botnets are likely to trigger the same form of cyberattacks as last year's "Mirai." In October last year, there was a large-scale DDoS attack in the United States. This attack almost paralyzed half of the US network, including the three major networks of Twitter, Reddit and Netflix. In November last year, a variant of the Mirai botnet broke out, causing nearly 900,000 Deutsche Telekom routers to be dropped, resulting in disruption of telecommunications subscriber network services. It can be seen that the destructive and influential scope of botnets is very large.
The research team said that in the past few days, the botnet has been expanding. Once the number of "broilers" reaches the hacker's expectations, it will start to attack. Home routers and webcams are the focus of attacks, but this is just the tip of the iceberg. The researchers did not see the full picture of the attack traffic, so it is difficult to issue warning information to the device, so it is very necessary to prepare for the defense before the botnet launches the attack.
How to improve the security of the router?
First, turn off the remote management function of the router
For example, the “remote WEB management†function of Tengda router, if it is enabled, please turn it off, so that the management interface of the router will not be exposed to the Internet through HTTP or SSH.
Modify method: enter the router management interface - click "System Management" - "Remote WEB Management" - close the function - save.
Second, do not use the initial administrator password
The most important thing is, don't use the router's initial management password and simple password, such as admin, 12345678, etc., should be modified as soon as possible to improve the security level of your own router.
Modification method: Enter the router setting interface (192.168.0.1), generally modify it in "System Settings - Administrator Password", or directly open Tenda "Tenda WiFi" APP to directly modify it.
Third, modify the WiFi password + turn off the WiFi broadcast
Improve network security awareness, change passwords regularly, passwords are preferably in the form of "cases English + numbers + special characters" to increase the difficulty of cracking; after turning off WiFi broadcast, others can not find your home's WiFi signal, thus reducing the Black chance.
Fourth, one button pulls black, and always removes the problem
The router is equipped with Tenda's routing app, Tenda WiFi, and it can be found that the strange device can be blacked out at any time. From then on, the device can no longer connect to your home WiFi to protect the home network security.
More features, all in the Tenda routing APP
Anti-mite network function, one-click kicking net player; signal strength adjustment function, one-button setting, enjoy the strongest WiFi; channel optimization function, one-button optimization, enjoy high-quality WiFi; security detection function, feedback router security status at any time, prevent Strangers network; Tenda cloud management, remote management of the router even if not at home.
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