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Metamorfo Banking Trojan Keeps Its Sights on Brazil

Metamorfo Banking Trojan Keeps Its Sights on Brazil (Malware and Vulnerabilities)

Financially motivated cybercriminals have used banking trojans for years to steal sensitive financial information from victims. Cisco Talos recently identified two ongoing malware distribution campaigns being used to infect victims with banking trojans, specifically financial institutions’ customers in Brazil. Additionally, during the analysis of these campaigns, Talos identified a dedicated spam botnet that is currently delivering malicious spam emails as part of the infection process. While analyzing these campaigns, Talos identified two separate infection processes that we believe attackers have used between late October and early November. These campaigns used different file types for the initial download and infection process, and ultimately delivered two separate banking trojans that target Brazilian financial institutions. Both campaigns used the same naming convention for various files used during the infection process and featured the abuse of link-shortening services to obscure the actual distribution servers used.

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