Ransomware-as-a-Service derived from Hidden Tear, sold by DevBitox on the dark web.
Analysis by Recorded Future: Karmen Ransomware Variant Introduced by Russian Hacker
Recorded Future on Hidden Tear
Commentary by John Leyden for The Register: Profit with just one infection! Crook sells ransomware for – Nifty dashboard shows the bitcoin rolling in
*Carmen (the opera)