The age of smart devices might bring convenience to our homes, but it also comes with additional potential dangers, including the risk of devices being infected by malware. Trend Micro has discovered a new version of the Bashlite malware, which is specifically designed to attack Belkin Wemo smart devices.
Launched in 2014, Bashlite was developed to infect Linux machines, adding them to a botnet that can be used to launch distributed denial-of-service (DDoS) attacks to bring down targeted systems.
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Thanks to the prevalence of Linux in internet of things (IoT) devices, including many smart home products, Bashlite has found these products to be its home more so than infecting Linux computers.
According to the Trend Micro blog, the latest version of Bashlite adds some new capabilities, including new DDoS commands, and new ones that give the malware cryptocurrency mining capabilities − something that may prove valuable to criminals, given the recent rise in price of Bitcoin.
Interestingly, the new version of Bashlite has been developed to use a publicly-available Metasploit module, designed to be used with the Metasploit security testing tool to test defences.
How bad is the problem? Well, not that bad. Although Trend Micro has seen the new malware in the wild, the issue shouldn’t be too bad for most consumers. According to an official statement from Belkin, “Belkin is committed to product and customer security. The vulnerability described in this article was detected and remediated in 2015 for all affected devices.”
The advice is to make sure that all of your WeMo devices are up-to-date and running the latest firmware. That advice goes for all of your connected devices, as new firmware doesn’t just bring new features, it also protects against known vulnerabilities and can keep your devices safe.
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Bashlite isn’t the only known malware to infect IoT devices, with the well-known Mirai botnet causing trouble back in 2016. With more and more smart devices, better protection is required, including adding security at the gateway, something that F-Secure has with its Sense router and Netgear is doing by adding the Bitdefender-powered Armor to its Orbi mesh system and high-end routers.