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The Worm tag covers self-spreading malware that can spread rapidly, plus reported incidents, technical analysis, disruption efforts, and defensive guidance.

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Worms are malware programs that replicate and spread between systems without needing to attach to another file. They may move through exploitable network services, vulnerable applications, removable media, or other connected paths; the route depends on the family. Their defining concern is rapid propagation: one compromised host can seed many others, causing outages or resource exhaustion and, in some cases, delivering additional code or enabling unauthorized access.

Security teams should assess worm reports alongside the affected software and exposure details. Priorities include applying patches or mitigations, disabling unnecessary services, and segmenting networks to limit movement. Monitor for unusual scanning, repeated connection attempts, and clusters of similar infections. During an incident, isolate affected systems, restrict relevant communications where practical, preserve forensic evidence, and verify that vulnerable hosts are remediated before reconnecting them.

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Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter IronWorm: Shai-Hulud’s rustier cousin Trojanized ai-sdk-ollama Delivers Miasma, a Self-Replicating npm Worm via binding.gyp  Inside the Cross-Platform Propagation of a New Gafgyt Variant C0XMO  Using AI Agents to Analyze Malware on REMnux   The Miasma […]

Security Affairs 15 Jun 2026, 1:23 a.m. Theme · 8 stories Artificial Intelligence Malware Node.js Research Worm

A study by the University of Toronto shows how artificial intelligence can power autonomous worms capable of tailoring attacks against Windows, Linux and IoT devices. A group of researchers from the University of Toronto has demonstrated how open-source artificial intelligence models can be used to create a new category of computer worms capable of autonomously […]

Security Affairs 10 Jun 2026, 8:30 p.m. Incident · 3 stories Artificial Intelligence IoT Linux Malware Microsoft Open Source Research Study Worm
Security Affairs 1 month, 1 week ago

Miasma Worm Compromises 73 Microsoft GitHub Repositories

The Miasma worm compromised 73 Microsoft GitHub repos, spreading via AI coding tools and stealing cloud credentials from developers and CI/CD systems. A self-replicating worm called Miasma has compromised 73 Microsoft GitHub repositories and forced GitHub staff to disable them. The affected repos include core Azure infrastructure like azure-functions-host and the entire Durable Task family […]

Security Affairs 10 Jun 2026, 3:57 a.m. Incident · 5 stories Artificial Intelligence Azure Cloud Compromise Credentials Github Microsoft Theft Worm