Another IoT-Dominated Botnet Rises With Almost 1M Infected Devices

BASHLITE malware fuels another DDoS botnet made up primarily of flaw-ridden internet of things devices

Researchers shed light this week on a new million-endpoint botnet consisting almost exclusively of internet of things (IoT) devices. The discovery uncovers one more sign -- among several in the last few months -- showing that the threat of IoT botnets is quickly moving from proof-of-concept to common strategy.
This weeks find was made by the team at Level 3 Threat Research Labs, which put out a report on the BASHLITE malware family responsible for this particular botnet. Also known as Lizkebab, Torlus or gafgyt, the malware family has focused primarily on building out botnets for carrying out distributed denial of service (DDoS) attacks.
According to the research, the source code for the malware was initially spotted in 2015 and has now spun off into more than a dozen variants. At its root, it is designed to be easily cross-compiled for multiple architectures running Linux, making it ideal for building out attacks that leverage the fragmented field of embedded systems in the IoT environment. As things stand, the botnet tracked by Level 3 is nearing one million infected devices, 96% of which are IoT-related.
The use of IoT devices in botnets is not new, but as they become more common, we expect these types of botnets to increase in number and power,
Level 3 researchers wrote in their report
. While compromised hosts and home routers continue to be targeted, bot herders will follow the path of least resistance. Before spending more energy on traditional bot hosts, they’ll take advantage of the abundance of insecure IoT devices.
According to a survey out from Tripwire last week conducted among 220 attendees of Black Hat USA 2016, less than one-third of security practitioners feel their organizations are prepared for the security risks associated with IoT. Approximately 78% of respondents said theyre concerned about the weaponization of IoT devices in the use of DDoS attacks.
It wasnt so long ago that home computer ‘zombie armies’ were the weapon of choice for a lot of cyber attacks and denial of service attacks, says Dwayne Melancon, chief technology officer and vice president of research and development for Tripwire. “It seems that security professionals see IoT devices as a sort of ‘zombie appliance army’ that’s worthy of great concern. That makes sense, since many of the current crop of IoT devices were created with low cost as a priority over security, making them easy targets.
Earlier this summer researchers with Arbor Networks brought attention to
the rise of an IoT-dominated DDoS botnet called LizardStresser
thats been making waves with its capability of carrying out large-scale DDoS attacks. Some of these attacks have been as large as 400 Gbps without the use of reflection or amplification techniques, with targets that include gaming sites, financial institutions, ISPs and government institutions. Meanwhile,
another piece of research from Sucuri
showed how attackers are taking advantage of weaknesses in closed circuit TV (CCTV) devices to run DDoS botnets completely consisting of these rarely monitored devices.
Related Content:
The Internet Of Tiny Things: What Lurks Inside
Hacker 2016 To-Do List: Botnet All The Things!
Over 25,000 IoT CCTV Cameras Used In DDoS Attack

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Another IoT-Dominated Botnet Rises With Almost 1M Infected Devices