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Evolution of JSWorm ransomware

SecureList

Several versions were released as part of each “rebranded” variant that altered different aspects of the code, renamed file extensions, cryptographic schemes and encryption keys. We will describe some notable variants of the JSWorm family encountered during the history of this malware. Encryption flaws.

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Ransomware world in 2021: who, how and why

SecureList

To ensure that their ability to restore encrypted files would never be questioned, they cultivated an online presence, wrote press releases and generally made sure their name would be known to all potential victims. Well-known malware families are involved in the biggest and most wide-reaching campaigns.