By Johannes B. Ullrich, Ph.D. YARA Update
https://isc.sans.edu/forums/diary/YARA+v3110+released/25408/
Hacking Back Against Ransomware
https://www.zdnet.com/article/white-hat-hacks-muhstik-ransomware-gang-and-releases-decryption-keys/
Fake Crypto Trading Software
https://www.bleepingcomputer.com/news/security/attackers-create-elaborate-crypto-trading-scheme-to-install-malware/
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