From securityaffairs.co
The Tetrade term coined by Kaspersky experts to refer four large banking trojan families developed and spread by Brazilian crooks worldwide.
Cybersecurity researchers from Kaspersky Lab have detailed four different families of Brazilian banking trojans, tracked as Tetrade, that have targeted financial institutions in Brazil, Latin America, and Europe.
The four malware families are named Guildma, Javali, Melcoz, and Grandoreiro, experts believe are the result of a Brazilian banking group/operation that is evolving its capabilities targeting banking users abroad.
The Brazilian cybercrime underground is recognized as the most focuses on the development and commercialization of banking trojans.