Hacked MikroTik Routers Embed cryptominer on Websites
Researchers have discovered tens of thousands of hacked routers from the manufacturer MikroTik, which introduce a cryptominer to all sites visited by the owners. According to researcher Simon Kenin of security company Trustwave in a blog post, this could even include 170,000 hacked routers.
MikroTik routers were hacked using a vulnerability fixed by MikroTik on April 23 this year. However, according to Kenin, hundreds of thousands of vulnerable routers can still be found. This vulnerability could allow a remote attacker to remotely gain access to a vulnerable MikroTik router. A script is then executed that injects the Coinhive cryptominer into all the websites that the owner visits.
Coinhive is a crypto machine that uses the computing power of a computer via a browser to switch to the Monero cryptocurrency. To do this, the computer performs cryptographic calculations. Figures from the analytical platform Censys.io show that cryptominer is active on more than 170,000 MikroTik routers, 70,000 of which are located in Brazil. Device owners are advised to install the latest firmware update.
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