Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscapeMalware NewsletterHackers Steal Claude Login Sessions With Infostealer Malware to Hijack AccountsFire Ant Evolves: From Hypervisors to Trusted Infrastructure Gryxa: The AI-Built Toolkit That Watches How You Remove ItValleyRAT masquerading as adware 13 Malicious Packagist Themes Deliver iOS Spyware That Steals Crypto Wallet Seeds Mirage Kitten targeting aviation and FinTech sectors across the Middle East and Africa with a new malware setUncovering StreamRat: From Meta Ads to Full Device Takeover Counterfeit installers to system compromise: Tracking a deceptive software download campaignGaming the system: how a Chinese-speaking actor turned Brazilian government sites into an SEO weapon September 2, 2026Mini Shai-Hulud’s Latest Wave: 280 New Places It Hunts for Your Secrets Pegasus Spyware Infection of Serbian Pro-Democracy Student Activist Chinese-Speaking Operator Uses AI Agents to Target Government and Education Systems Across AsiaDPRK APTs: Ted backdoor and curlRAT target South Korean media and automotive sectorsAnatomy of BraZetsu: How Cybercriminals Fuel the Underground EcosystemPeer Pressure: Inside the Sality Botnet Disruption OperationGraph-Based Learning for Android Authorship Attribution: A Comparative Analysis of GNN ModelsStability and Hopf Criteria in a Malware Dissemination Model for Wireless Sensor Networks with Distributed Recovery DelaysPhantomCall: Evading ML Malware Detectors via Function Call Graph PerturbationREPLICANT: Learning Policies for Evading and Hardening Malware DetectorsFollow me on Twitter: @securityaffairs and Facebook and MastodonPierluigi Paganini(SecurityAffairs – hacking, newsletter)