WhatsApp 'Eternidade' Trojan Self-Propagates Through Brazil

darkreading

November 20, 2025 at 2:00 PM

Actively Exploited

Overview

The 'Eternidade' Trojan is a sophisticated infostealer targeting Brazilian Portuguese speakers, designed to phish banking credentials and steal sensitive data. Its self-propagating nature and unique features tailored for Brazilian users pose significant cybersecurity threats across the region.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: WhatsApp, Brazilian Portuguese-speaking users
Action Required: Users should avoid clicking on suspicious links and ensure their devices have updated security software.
Timeline: Newly disclosed

Original Article Summary

The infostealer specifically targets Brazilian Portuguese speakers and combines malware designed to phish banking credentials and steal data, a worm, and some uniquely Brazilian quirks.

Impact

WhatsApp, Brazilian Portuguese-speaking users

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Users should avoid clicking on suspicious links and ensure their devices have updated security software. Regularly monitor banking activities for unauthorized transactions.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Phishing, Malware, Trojan.

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