New ransomware attack targets key IT vendor Shutterstock Shutterstock US cyber officials are tracking a major new ransomware attack by the same group that hit meat supplier JBS Foods. by Brian Fung, CNN Business US cyber officials are tracking a major new ransomware attack by the same group that hit meat supplier JBS Foods this spring. This time, the REvil malware has hit a wide range of IT management companies and compromised hundreds of their corporate clients. The cybercriminal gang, which is believed to operate out of Eastern Europe or Russia, targeted a key software vendor known as Kaseya, whose products are widely used by IT management companies, cybersecurity experts said.