Chinese researchers found hackers turning internet-connected devices into tools for creating caches of the digital currency Monero.
Researchers at Chinese cybersecurity firm Netlab360 found that Hackers turning internet-connected devices into tools for creating caches of the digital currency Monero and have infected thousands of Android phones and smart TVs, turning the devices into miners for a popular cryptocurrency.
The hacker affected 7,000 devices in China, which were hacked into a network that harnessed the processing power of the connected devices to mine, or digitally create, the Monero cryptocurrency, according to ZDNet. Though not as big as some recent botnets, security experts say this approach will increasingly be used by hackers looking to make money off of other people's computers, IoT devices, phones and tablets.
Attack took advantage of an open port, a part of the operating system that allows a device to communicate with the internet. They infected them with malicious software, known as a worm, that looked for more devices to infect. Hackers searched for devices connected through port 5555, which helped them find unsecured Android phones and TVs.
Google, which owns the Android mobile software, didn't immediately respond to a request for comment.
According to researchers told ZDNet the hackers weren't opening the port themselves, which would have been a much more worrying attack. "The 5555 ADB interfaces of those devices have already been opened before infected," the researchers said. "We have no idea about how and when this port was opened yet."
The hackers used the network of infected devices to run a program and botnet gives hackers the computing power of thousands of devices without the costs associated with buying hardware, power or internet access.
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