Ryuk is a ransomware binary that encrypts file systems. This TTP uses a defanged (non-malicious) version of
Ryuk which can be used to check if replaying the attack is shut down by any endpoint defense.
This is important because defenses should detect the artifacts created by Ryuk and respond before it can cause damage.
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About PreludePrelude hardens an organization's defenses by continuously “asking” it questions through the form of safe cyberattacks. These attacks respond immediately to the latest vulnerabilities and cyber events, turning complex technical descriptions into deployable “questions”.Our mission is to increase the reach, frequency and usage of advanced security for all organizations.