Sabbath Ransomware Gang Targets Critical Infrastructure, Backups

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Sabbath Ransomware Gang Targets Critical Infrastructure, Backups

A ransomware gang known as Sabbath is going after critical infrastructure groups in North America. In addition, it sets itself apart by targeting backups.

Backups Singled Out

A rebrand of UNC2190, Sabbath has targeted U.S. and Canadian critical infrastructure. That includes education, natural resources and health sectors.

In October 2021, for instance, the threat group extorted a U.S. school district on social media and demanded a multi-million dollar ransom, according to Mandiant. The group went so far as to contact staff, parents and students for the purpose of putting more pressure on the school district, a technique known as triple extortion.

The Sabbath ransomware group also steals data in bulk and attempts to destroy backups in targeted attacks. These tactics enabled them to extort six victims using a public shaming blog in November. That attack included nearly the same text content — including grammatical errors — as another. Both Sabbath and a web portal and blog launched in June 2021 by Arcane appear to be rebrands of UNC2190.

Other Instances of Bashed Backups

Targeting data backups has become a common technique among

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