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Ryuk Ransomware Updated With Worm-Like Capabilities

Ryuk ransom note (Source: Coveware, Malwarebytes) Prolific Ryuk ransomware has a new trick up its sleeve. The developers behind the notorious strain of crypto-locking malware have given their attack code the ability to spread itself between systems inside an infected network. A Ryuk sample with worm-like capabilities - allowing it to spread automatically within networks it infects - was discovered during an incident response handled by ANSSI in early 2021, according to a Ryuk report issued Thursday by CERT-FR, the French government s computer emergency readiness team that s part of the National Cybersecurity Agency of France, or ANSSI. Specifically, the worm-like behavior is achieved through the use of scheduled tasks, via which the malware propagates itself - machine to machine - within the Windows domain, CERT-FR says. Once launched, it will thus spread itself on every reachable machine on which Windows RPC accesses are possible. Remote procedure calls are a mechanism fo

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