Cryptojacking: How to Prevent, Detect and Recover from it

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Cryptojacking is the use of another person’s computer to mine cryptocurrencies without their permission. Criminals use various means to remotely gain access to target computers. Malware may be introduced to an unsuspecting person’s computer through a malicious link sent via email. Once clicked, the malware loads the crypto mining code on to the computer. Alternatively, the malware may be hidden in websites and online ads such that it automatically executes once loaded in a browser. Once the crypto mining code installs in the victim computer, it runs discretely in the background as the owners continue to use their computer normally.

Cryptojacking has been on the rise. As of February this year, The Bad Packet report found over 34,000 sites running the crypto mining script “coinhive”. With over a billion combined monthly average visits to these sites, the spread of cryptojacking cannot be overlooked.

Another crypto miner “Smominru” was discovered in January. It is estimated to have infected about 0.5 million computers and generated up to 3.6 million dollars mining Monero by the end of January. According to Marc, a threat analyst with WatchGuard Technologies, the practice is in its early stages with a lot of potential for growth and evolution. Therefore, this makes cryptojacking one of the biggest emerging threats to the cryptocurrency ecosystem.

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