Named Tycoon after references in the code, this ransomware has been active since December 2019 and looks to be the work of cyber criminals who are highly selective in their targeting. The malware also uses an uncommon deployment technique that helps stay hidden on compromised networks
Tycoon has been uncovered and detailed by researchers at BlackBerry working with security analysts at KPMG. It's an unusual form of ransomware because it's written in Java, deployed as a trojanised Java Runtime Environment and is compiled in a Java image file (Jimage) to hide the malicious intentions.
