Cryptocurrency world has suffered a lot from the hackers.
Now, an unknown hacker or group of hackers has targeted some video streaming and gaming sites with “malvertising,” which uses online ads as channels to transmit script that causes visitors’ browsers to mine altcoins for the perpetrator, as reported by an ESET malware researcher Matthieu Faou.
Malvertising - the practice of delivering malicious code to a website via an online ad network without the victim actually downloading anything to the affected device. According to ethnews.com, advertising network operators are unaware of the malicious content being sent to websites on the network. The content contains code that can adversely impact the browsing experiences of these sites’ users and potentially even put their privacy at risk.
While cryptocurrencies like Bitcoin now require specialized hardware to mine them effectively, Feathercoin and Litecoin, two of the cryptocurrencies sought by the perpetrator(s) of this attack, are designed to be minable via regular CPUs.
According to Faou’s post, all the Feathercoin malvertising scripts analyzed by the ESET team contained a single wallet address, suggesting a single perpetrator or group of perpetrators. The other crypto mined, Monero, is among the most anonymous of cryptocurrencies, and thus the team could not ascertain whether all the Monero mined through these attacks was sent to a single wallet.