The cyberattack occurred over Memorial Day weekend, affecting servers supporting company operations in North America and Australia.
The company, which is still working to get all of its systems back online, has not publicly disclosed the ransom amount.
REvil, one of the largest ransomware groups, is known for going after large U.S. companies. The syndicate has tried to extort one of Apple’s largest suppliers in Taiwan and was responsible for threatening nearly two dozen cities in Texas.
The gang “leases out” its ransomware to other groups who are not tech-savvy, but want to perpetuate an attack.
“They’ve really lowered the barrier to entry,” said Nicole Perlroth, a cybersecurity reporter for The New York Times, on WHYY’s Radio Times on Thursday.