ThreatLabZ Ransomware Review: The Advent of Double ExtortionTHREATLABZ RANSOMWARE REVIEW: THE ADVENT OF DOUBLE EXTORTION 2 ©2021 Zscaler, Inc. All rights reserved. Table of contents The anatomy of a ransomware attack 4 Double-extortion ransomware attack sequence 4 The growth of double extortion attacks 5 Seven high-impact ransomware families 7 Maze ransomware 8 Maze – MITRE ATT&CK Tactics & Techniques 10 Sodinokibi/REvil ransomware 10 Sodinokibi/REvil – MITRE ATT&CK Tactics & Techniques 13 Doppelpaymer ransomware 13 Doppelpaymer – MITRE ATT&CK Tactics & Techniques 16 Ragnar Locker ransomware 16 Ragnar Locker- MITRE ATT&CK Tactics & Techniques 18 Avaddon ransomware 18 Avaddon – MITRE ATT&CK Tactics & Techniques 21 Co

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