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Cybereason discovered a new toolset developed by Iranian APT Phosphorus which revealed a connection to Memento ransomware and includes the newly discovered PowerLess Backdoor that evades detection by running PowerShell in a .NET context.

This year’s emulation by MITRE Engenuity focused on Data Encryption For Impact — which in common parlance we refer to as ransomware. MITRE’s lab tests simulated the attacks of two common ransomware operators: Wizard Spider and Sandworm.