Sopra Steria hit by the Ryuk ransomware gang

Pierluigi Paganini October 23, 2020

French IT outsourcer Sopra Steria hit by ‘cyberattack’, Ryuk ransomware suspected

French IT outsourcer Sopra Steria has been hit by a ransomware attack, while the company did not reveal the family of malware that infected its systems, local media speculate the involvement of the Ryuk ransomware.

“A cyber attack was detected on the Sopra Steria computer network on the evening of October 20. Security measures have been taken to limit the risk of propagation.” reads the press release published by the company. “The Group’s teams are fully mobilized to ensure a return to normal as quickly as possible and everything is done to ensure business continuity. Sopra Steria is in close contact with its customers and partners as well as with the competent authorities.”

The European IT firm has 46,000 employees operating in 25 countries worldwide. It provides a wide range of IT services, including software development and consulting.

“According to our sources, the incident started to spread during the course of last night. The Active Directory infrastructure would be affected. And part of the information system would have been encrypted.” reported the website LeMagit. “Two sources tell us that the ransomware involved is none other than Ryuk. Surprise, researcher  JamesWT_MHT  found on VirusTotal a copy of an executable which two sources have confirmed to us is used internally at ESN for the generation of email signatures.”

French authorities are investigating the incident.

Sopra Steria is a member of France’s Cyber Campus, a French initiative to spread cybersecurity awareness, training, and product sales.

The Ryuk ransomware operators were very active early this year, in March they targeted hospitals even as these organizations are involved in the fight against the Coronavirus pandemic.

In September, the Universal Health Services (UHS) healthcare providers has reportedly shut down systems at healthcare facilities after a Ryuk ransomware attack.

In March, the City of Durham shut down its network after Ryuk Ransomware attack.

A few days before, EVRAZ, one of the world’s largest multinational vertically integrated steel making and mining companies, has been hit by the Ryuk ransomware.

The list of the victims of the Ryuk ransomware is very long and includes the US government contractor Electronic Warfare Associates (EWA), US railroad company Railworks, Croatian petrol station chain INA Group, and parts manufacturer Visser Precision.

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Pierluigi Paganini

(SecurityAffairs – hacking, Sopra Steria)

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