Eternity Stealer Malware — Analysis, Campaigns & Threat Activity

Threat entity extracted from intelligence sources

Frequency
1
occurrences
First Seen
November 21, 2025
Last Seen
November 21, 2025

Eternidade Stealer (Eternity Stealer) is a newly observed banking-credential stealer trojan.

Overview

Eternidade Stealer (Eternity Stealer) is a newly observed banking-credential stealer trojan. In the reported campaign, Brazilian threat actors distribute the malware via WhatsApp messages to target users of banking apps, highlighting a mobile-focused approach to credential theft and financial fraud. This underscores the ongoing use of stealer trojans and social‑engineering delivery vectors in financial-targeted campaigns.

Related Threat Clusters

  • WhatsApp Malware Campaign Targets Brazilian Crypto Users

    A sophisticated malware campaign in Brazil is exploiting WhatsApp to target cryptocurrency users, deploying a banking trojan named 'Eternidade Stealer.' This malware hijacks devices, steals financial data, and spreads…

    19 articles · Updated November 26, 2025
  • WhatsApp Security Flaw Exposes 3.5 Billion Phone Numbers

    A security flaw in WhatsApp allowed researchers to extract phone numbers of 3.5 billion users. The exploit involved systematically checking numbers through the app's discovery feature, revealing profile photos for 57%…

    56 articles · Updated November 18, 2025

Recent Intelligence Reports

  • Brazilian Hackers Spread New Eternidade Stealer Trojan Via WhatsApp to Target Banking Apps — Techtimes · November 21, 2025

CVSS v3.1 Breakdown