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Eternidade Stealer is a credential-stealing and banking trojan operation targeting users in Brazil. It has been observed using WhatsApp-based phishing lures to deliver malware, indicating a focus on social-engineering-driven initial access against Brazilian victims. Its functionality and targeting align with financially motivated cybercrime, particularly theft of credentials and banking-related information. The operation is associated with infostealer activity and banking trojan behavior rather than ransomware or destructive intrusion. No high-confidence evidence in the available facts supports broader geographic targeting, additional industry specialization, or attribution to a nation-state actor.
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