Intelligence Center

Threat Research

From PDB strings to MaaS: Tracking a commodity BadIIS ecosystem used by Chinese-speaking threat

Cisco Talos has uncovered a BadIIS variant — identifiable by its embedded "demo.pdb" strings — that functions as commodity malware, likely sold or shared among multiple Chinese-speaking cyber crime groups operating under a malware-as-a-service (MaaS) model for continuous monetization. Learn More

UAT-8302 and its box full of malware

Cisco Talos is disclosing UAT-8302, a sophisticated, China-nexus advanced persistent threat (APT) group targeting government entities in South America since at least late 2024 and government agencies in southeastern Europe in 2025. Learn More

CloudZ RAT potentially steals OTP messages using Pheno plugin

Cisco Talos discovered an intrusion, active since at least January 2026, where an unknown attacker implanted a CloudZ remote access tool (RAT) and a previously undocumented plugin called “Pheno.” Learn More

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Latest Talos Takes Podcast Episodes

July 2, 2026
From evasion to detection: A guide to analyzing COM-based threats

While the Component Object Model (COM) is a fundamental Windows technology that allows software to communicate and function, it's also a powerful tool for threat actors looking to move laterally, maintain persistence, and evade traditional security measures.Joining us is Vanya Svajcer, who shares his expertise on how to cut through the noise and identify malicious signals within COM-based binaries. Whether you are a seasoned researcher or just starting your journey into reverse engineering and malware analysis, here's some practical advice on how to start hunting for COM-based threats and making your next investigation a little more effective.Vanja's blog: https://blog.talosintelligence.com/introduction-to-com-usage-by-windows-threats

June 18, 2026
Patching in the dark: Managing unknown threats in complex environments

If you're tired of being told to "just patch," we understand. The threat landscape is evolving at breakneck speed, with AI-driven tools enabling adversaries to uncover and exploit vulnerabilities before defenders even know they exist. In this episode of Talos Takes, Amy sits down with Threat Intelligence Lead Pierre Cadieux to discuss how to defend against these unknown threats. We move past the simplified advice of "just patch everything" to explore the logistical, technical, and business realities that make patching a complex, high-stakes operation rather than a simple button click.From the necessity of testing your patches to the importance of building strong partnerships between security teams and business leadership, this episode breaks down the things defenders often miss that build true resilience in organizations.

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