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According to research published by security firm Avast, the “Crackonosh” malware has been circulating since at least 2018 and has yielded over $2 million for its authors in Monero (XMR). Around 220,000 users have been affected by the crypto mining malware worldwide, with 800 new devices infected every day, the research showed. However, the actual number might be even higher as the company only detected malicious software on devices that have the Avast antivirus installed. 

Avast researcher Daniel Beneš told CNBC that infected users have noticed that their computers have slowed down or deteriorated through overuse. Some have also noticed their electricity bills have gotten higher than normal. 

“It takes all the resources that the computer has to the computer is unresponsive,” he explained. “Crackonosh shows the risks in downloading cracked software and demonstrates that it is highly profitable for attackers.”

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Beneš also noted there were possible indications that the author or authors of the malware were Czech. The Avast research team named the malware Crackonosh, which means “mountain spirit” in Czech folklore. 

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