Offline Ransomware Encrypts Your Data without C&C Comms

Early in September, Check Point obtained a sample of a ransomware. When the sample was run, the following message, written in Russian, appeared:  

ChChes – Malware that Communicates with C&C Servers Using Cookie Headers - JPCERT/CC Eyes

Story of the year 2019: Cities under ransomware siege

Cyble — Punisher Ransomware Spreading Through Fake COVID Site

What Is Ransomware & How Does Ransomware Work? - Hashed Out by The SSL Store™

ransomware Archives - Security IT Summit

The Evolution of Ransomware

Applied Sciences, Free Full-Text

Ransomware abusing encrypted chat app Telegram protocol cracked

Ransomware Chronicle 2017 - Privacy PC