The Russian-based ransomware group is now demanding bitcoin in exchange for a decrypter for the infected machines.
Ransomware hacking group REvil brought the networks of at least 200 U.S. companies to their knees on Friday and is now demanding $70 million in bitcoin (BTC, -4.89%).
Australia’s ABC News reported on Saturday REvil had targeted software supplier Kaseya and used its network-management package to spread the ransomware via the cloud.
Over 1 million machines are said to be infected according to various other reports.
The Russian-based ransomware group is now demanding the bitcoin in exchange for a decrypter for the infected machines.
“On Friday we launched an attack on [managed service providers],” a post from the dark web site Happy Blog reads. “More than a million systems were infected.”
In May, REvil attacked Colonial Pipeline and managed to get the company to pay a $5 million ransom after its functionality and services were restricted, sparking a gas crisis in the U.S.
JBS Holdings, the world’s largest meat company by sales, also paid an $11 million ransom in a May 30 attack against it by the same group.