The people behind the attack have posted a screenshot of data stolen from Jands on their website. Going by that, what seems to have been stolen is financial data, customer details and other miscellaneous data.

Jands has been in business since 1970 and is based in Mascot, NSW.

NetWalker has not been used in many attacks recently. One attack of note was on Forsee Power, a company that designs and manufactures smart lithium-ion battery systems for electro-mobility markets.

Prior to that the University of California in San Francisco admitted it paid US$1.14 million to a gang that used NetWalker to attack its systems. A fourth case was that of Australian customer experience firm Stellar, that also operates across Asia, North America and Africa.

iTWire has contacted Jands for comment.

Brett Callow, a ransomware threat researcher who works for the New Zealand-headquartered security firm Emsisoft, said NetWalker was a sophisticated ransomware-as-a-service operation that mainly targeted enterprise-space companies.

"It only accepts affiliates with proven access to enterprise-space networks," he added. "Like other groups, NetWalker uses a range of attack vectors including phishing and RDP."