TCLBANKER banking trojan activity targeting 59 financial platforms
Malware Activity
Summary
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TCLBANKER is a newly documented Brazilian banking trojan that can hit 59 banking, fintech, and cryptocurrency platforms, increasing the risk of credential theft and remote control. The malware uses a ZIP-delivered MSI, DLL side-loading, and aggressive anti-analysis checks to hide its payload. It also spreads through WhatsApp Web and Microsoft Outlook, extending the infection beyond the first victim.
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Sources 1
About this happening:
The **TCLBanker** trojan now combines **trojanized installer** delivery with **self-spreading worm modules**, widening access to **59 banking, fintech, and cryptocurrency platform...
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Sources 1
About this happening:
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About this happening:
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Campaign
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Sources 1
About this happening:
**Water Saci** is actively evolving a **WhatsApp Web worm** in **Brazil** that uses **HTA** and **PDF** lures to deliver a **banking trojan**. The latest wave shifts from **PowerS...
Augmented Marauder / Water Saci multi-pronged phishing campaign targeting Latin America and Europe
CampaignAbout this happening: **Water Saci** is actively evolving a **WhatsApp Web worm** in **Brazil** that uses **HTA** and **PDF** lures to deliver a **banking trojan**. The latest wave shifts from **PowerS...
Timeline
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08.05.2026 21:12 2 articles · 19d ago
TCLBANKER malware disclosure
Initial DisclosureElastic Security Labs identified TCLBANKER as a previously undocumented Brazilian banking trojan targeting 59 banking, fintech, and cryptocurrency platforms. The malware chain uses a malicious MSI inside a ZIP file, abuses a signed Logitech program for DLL side-loading, and propagates through WhatsApp Web and Microsoft Outlook while focusing on Brazilian Portuguese systems.
Show sources
- TCLBANKER Banking Trojan Targets Financial Platforms via WhatsApp and Outlook Worms — thehackernews.com — 08.05.2026 21:12
- TCLBANKER Banking Trojan Targets Financial Platforms via WhatsApp and Outlook Worms — thehackernews.com — 08.05.2026 21:12