Criminals wielding Ryuk ransomware specialize in targeting enterprises

A cybercriminal group dubbed Grim Spider has been using the Ryuk ransomware to exclusively target enterprises and has managed to amass over 705 Bitcoins (around $3.7 million) from the victims in less than six months.

CrowdStrike and FireEye researchers have been tracking the group for quite a while, but admit that it’s currently impossible to determine whether it is a part of a larger criminal enterprise (the Russia-based operator of the TrickBot banking malware) or a standalone threat group.

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