Rust-Based VENON Malware: The New Brazilian Banking Trojan That’s Rewriting Cybercrime

In a stunning development that’s sending shockwaves through the cybersecurity community, researchers have uncovered VENON, a sophisticated banking malware written in Rust that’s targeting Brazilian users with unprecedented precision and stealth. This marks a dramatic departure from the Delphi-based malware families that have long dominated Latin American cybercrime, signaling a new era of digital financial theft.

The Rise of VENON: A Game-Changing Threat

When Brazilian cybersecurity firm ZenoX first encountered VENON in February 2026, they knew immediately they were dealing with something extraordinary. Unlike traditional Brazilian banking trojans that rely on Delphi programming, VENON is built on Rust—a modern, high-performance language typically reserved for system-level programming and cryptocurrency applications.

“The Rust code structure presents patterns suggesting a developer familiar with the capabilities of existing Latin American banking trojans, but who used generative AI to rewrite and expand these functionalities in Rust,” ZenoX researchers revealed. This hybrid approach—combining traditional cybercrime techniques with cutting-edge AI-assisted development—represents a quantum leap in malware sophistication.

What makes VENON particularly alarming is its behavioral fingerprint. The malware mirrors the capabilities of established banking trojans like Grandoreiro, Mekotio, and Coyote, including banking overlay logic, active window monitoring, and a shortcut hijacking mechanism. However, its Rust foundation provides enhanced performance, better memory safety, and significantly improved evasion capabilities.

The Anatomy of a Sophisticated Attack

VENON’s infection chain reads like a masterclass in modern malware deployment. The campaign begins with social engineering tactics reminiscent of the notorious ClickFix attacks, tricking users into downloading ZIP archives containing malicious payloads. Once executed, the malware employs nine distinct evasion techniques before any malicious action occurs:

• Anti-sandbox checks to detect virtualized environments
• Indirect syscalls to bypass traditional security monitoring
• Event Tracing for Windows (ETW) bypass to hide malicious activity
• Antimalware Scan Interface (AMSI) bypass to evade detection
• Process hollowing to inject malicious code
• Reflective DLL loading to avoid disk-based signatures
• API unhooking to restore original system functions
• Thread Local Storage (TLS) callback manipulation
• Control Flow Guard (CFG) bypass

After successfully evading detection, VENON establishes a WebSocket connection to its command-and-control server and retrieves configuration data from Google Cloud Storage—a clever choice that helps the malware blend in with legitimate network traffic.

The Itaú Banking Shortcut Hijacking: A Novel Attack Vector

Perhaps VENON’s most innovative feature is its Visual Basic Script-based shortcut hijacking mechanism that exclusively targets Itaú, Brazil’s largest private bank. The malware replaces legitimate system shortcuts with tampered versions that redirect victims to phishing pages under the attacker’s control.

What’s particularly insidious about this approach is the built-in uninstall functionality. The malware can remotely restore shortcuts to their original state, effectively covering its tracks and making forensic analysis significantly more challenging. This level of operational sophistication suggests a highly organized criminal operation with substantial resources.

A Broader Ecosystem of Brazilian Cybercrime

VENON doesn’t exist in isolation. It’s part of a rapidly evolving ecosystem of Brazilian banking malware that’s becoming increasingly sophisticated and coordinated. Recent campaigns have exploited WhatsApp’s ubiquity in Brazil to distribute the SORVEPOTEL worm via the messaging platform’s desktop web version.

Blackpoint Cyber researchers documented how a single WhatsApp message delivered through a hijacked SORVEPOTEL session can initiate a multi-stage attack chain culminating in Astaroth malware running entirely in memory. “The combination of local automation tooling, unsupervised browser drivers, and user-writable runtimes created an unusually permissive environment,” they noted, allowing both the worm and final payload to establish themselves with minimal friction.

The Scale of the Threat

VENON’s targeting capabilities are extensive, with the malware equipped to attack 33 financial institutions and digital asset platforms. By monitoring window titles and active browser domains, VENON activates only when specific applications or websites are opened, serving fake overlays to harvest credentials.

This precision targeting, combined with its Rust foundation and AI-assisted development, positions VENON as potentially the most dangerous Brazilian banking trojan to date. The malware’s ability to blend in with legitimate system processes, evade modern security controls, and deploy sophisticated phishing overlays makes it a formidable threat to both individual users and financial institutions.

The Future of Latin American Cybercrime

VENON represents more than just another banking trojan—it’s a harbinger of what’s to come in the world of cybercrime. The combination of modern programming languages, AI-assisted development, sophisticated evasion techniques, and coordinated campaign infrastructure suggests that criminal organizations are investing heavily in their technical capabilities.

As Brazilian authorities and international cybersecurity firms work to understand and mitigate VENON’s impact, one thing is clear: the bar for banking malware sophistication has been raised, and defenders will need to adapt quickly to address this new generation of threats.

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