https://wccftech.com/kronos-banking-trojan-comeback/

It appears the infamous Kronos banking trojan is back as researchers have identified three campaigns distributing a revamped version of this banking trojan. First discovered in 2014 it was believed that trojan had disappeared. Proofpoint security researchers now report that new samples of Kronos have been spotted in April, this year.

The three campaigns have been seen targeting Germany, Japan, and Poland. There’s also a fourth campaign that appears to be a work in progress. “The most notable new feature is that the command and control (C&C) mechanism has been refactored to use the Tor anonymizing network,” researchers wrote. “There is some speculation and circumstantial evidence suggesting that this new version of Kronos has been rebranded ‘Osiris’ and is being sold on underground markets.”