The market for IoT devices (also known as “smart” gadgets), and their role in everyday life, is growing exponentially. But cybercriminals are seeing the financial opportunities too, and are multiplying and differentiating their attacks as a result. The danger for consumers who love their IoT gadgets, is that threats can strike unexpectedly, turning seemingly harmless devices into powerful machines for illegal activity. This can include malicious cryptocurrency mining, DDoS attacks, or the discreet inclusion of devices in botnet activities.
Aware of these dangers, Kaspersky Lab experts regularly review the data collected from various sources including our honeypots - decoy devices used to attract the attention of cybercriminals and analyze their activities. The latest updates are striking: during the first half of 2018, the number of malware modifications aimed at IoT devices registered by researchers was more than three times higher than the number registered in the whole of 2017.
The statistics show that the most popular method of IoT malware propagation is still the brute forcing of passwords - repetitive attempts at various password combinations. Brute forcing was used in 93% of detected attacks. In most of the remaining cases, access to an IoT device was gained using well-known exploits.
The devices most often attacking Kaspersky Lab honeypots were routers (by a large margin). 60% of the registered attempts to attack our virtual devices were coming from them. The remaining share of compromised IoT gadgets included a variety of different technologies, such as DVR-devices and printers.
“Compared to personal computers and smartphones, IoT devices might not seem powerful enough to attract cybercriminals and be used in their illegal activity. However, their lack of performance is more than outweighed by their number, and the fact that some smart gadget manufacturers are still not paying enough attention to the security of their products. Even if vendors begin to provide their devices with better security now, it will be a while before old vulnerable devices have been phased out of our homes. In addition, IoT malware families are customizing and developing very fast, and while previously exploited breaches have not been fixed, criminals are constantly discovering new ones. IoT products have therefore become an easy target for cybercriminals who can turn simple machines into a powerful device for illegal activity, such as spying, stealing and blackmailing,” notes Mikhail Kuzin, security researcher at Kaspersky Lab.
To reduce the risk of infection, users are advised to:
Read the full version on Securelist.com.
The previous version of the text incorrectly stated that Kaspersky Lab honeypots, used for detecting botnets, were attacked by 33 dishwashers.
A vendor’s representative shared new details with us so we could review our earlier findings.
We understand that connection attempts were performed by other objects from the networks that presented the targeted IP-addresses – including, but not limited to, a router or another device within the network.
We would like to thank the company for bringing this to our attention and being able to clarify our findings. We apologize for any confusion caused.