Mining crypto

Good news: crypto-mining attacks are decreasing across Africa – IT News Africa

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In the second quarter of 2022, Kaspersky solutions detected 40,788 new minor modifications. According to data from Kaspersky Security Network, in the African region, the number of home users affected by cryptominers in the second quarter of 2022 decreased slightly compared to the previous quarter.

However, the possibility of an increase in cryptomining attacks remains and could be directly correlated to cryptocurrency exchange rates.

What is Crypto Mining?

Cryptomining is a process in which users who mine cryptocurrencies use computers, data, codes, and calculations to validate cryptocurrency transactions and earn cryptocurrency as compensation for their labor.

Mining cryptocurrencies is very resource-intensive and therefore expensive to perform, which is why cybercriminals seek to gain access to other people’s machines in order to mine them.

Attackers can use compromised devices to generate cryptocurrency without the knowledge of device owners. They can steal resources, for example, by sending endpoint users a legitimate-looking email encouraging them to click on a link that runs code that places a cryptomining script or program on the recipient’s computer. victim.

Another method is to inject a script on a website or an advertisement that is served on multiple websites. Once the victims visit the website or the infected ad appears in their browser, the script runs automatically. No code is stored on the computers of the victims.

Notable attacks

In 2019, eight separate apps that secretly mined cryptocurrency with the resources of those who downloaded them were removed from the Microsoft Store. In 2018, a cryptojacking code was discovered on the Homicide Report page of the Los Angeles Times. Also in 2018, the CoinHive miner was discovered to be running YouTube Ads through Google’s DoubleClick platform.

In African regions, there was a downward trend in cryptomining attacks, however, in South Africa, the dynamic was multi-directional. The number of attempts by attackers to run cryptominers on home user machines decreased by 11% in Q2 2022 compared to Q1, but the number of personal computers that were affected by cryptomining software increased. increased by 2% over the same period.

In Nigeria, the number of attempts to execute cryptominers on personal computers decreased by 16% in the second quarter of 2022 compared to the first quarter, and the number of computers affected by cryptominers decreased by 10%. In Kenya, the decline was more moderate: 3% for attempts to run cryptominers on home machines and 6% for affected computers.

“Before, cryptomining attacks were mainly an endpoint issue, targeting desktops and laptops, sometimes – Android smartphones. Today, cryptojacking is expanding to include servers, network, and even devices. IoT devices. Servers are generally more powerful than regular PCs and allow for greater mining capacity,” comments David Emm, senior security researcher at Kaspersky.

“We are seeing different levels of mining activity in different regions – this is due to different levels of cryptocurrency adoption in countries, but also due to fluctuations in cryptocurrency exchange rates. crypto rises in value, activity of attackers using miners increases.

By personal writer.