At the same time, Avast saw less ransomware and remote access trojan (RAT) activity. The Q4 findings likewise show an increase in adware, technical support scams on desktop, and subscription scams and spyware on Android devices, targeting consumers. Furthermore, Avast's threat researchers observed the revival of the Emotet botnet, and a 40% rise in coinminers, posing risks for consumers and businesses alike. 31, 2022 /PRNewswire/ - Avast (LSE:AVST), a global leader in digital security and privacy released its Q4/2021 threat report today, revealing an immediate exploitation of the Log4j vulnerability by coinminers, RATs, botnets, ransomware, and APTs, in December putting CISO departments under pressure. Researchers also observed the resurrection of Emotet, increased coinminer activities during growing Bitcoin prices, and an increase in technical support scams, Android subscription scams and spyware
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