Cryptojacking from Browsers Spike Again

Is it true that crypto-jacking from browser no longer exists?

Cryptojacking attacks have been on the increase since March when cryptocurrencies started doing well. It was Symantec, a cybersecurity firm that discovered it.

Symantec said cryptojacking through browsers rose by 163% between April and June. Compared to the same period last year, cryptojacking was minimal because CoinHive, a mining script maker, was closed.

Symantec noted that browser-based cryptojacking attempts increased because of the improved performances of Bitcoin and Monero. BTC and XMR are often the scammers’ choice of cryptocurrency to mine when they want to launch a malware.

There was a high rate of cryptojacking from September 2017 to March 2019 and it accounted for most common way by which cyber attackers succeeded in their operations. There was a decline in the act in 2019 when CoinHive stopped. CoinHive actually shut down on March 8, 2019. One of the reasons why it could no longer continue was that it wasn’t able to keep up with half of its mining power as a result of a Monero hard fork.

According to Josh Lemos of BlackBerry, there are several ways by which crypto miners can carry out their plans:

“From JavaScript running on a website as a watering hole attack or embedded in a spear-phishing email to supply chain attacks with miners embedded in docker hub images and malicious browser extensions.”

But ZDNet is optimistic that soon, malware attacks will be on a rapid decrease:

“Most cybercrime groups who experimented with cryptojacking operations in the past usually dropped it weeks later, as they also discovered that browser-based cryptocurrency-mining was both a waste of their time and too noisy, drawing more attention to their respective operations than profits.”

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