SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 93

Pierluigi Paganini April 19, 2026

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape

CPU-Z / HWMonitor watering hole infection – a copy-pasted attack  

Fake Claude site installs malware that gives attackers access to your computer  

Malware Analysis Static SKILL for Codex  

JanelaRAT: a financial threat targeting users in Latin America  

Mirax: a new Android RAT turning infected devices into potential residential proxy nodes

Mirax extraction pipeline for StreamTV-like droppers    

08 Chrome Extensions Linked to Data Exfiltration and Session Theft via Shared C2 Infrastructure  

Hospitals, local governments, and FPV operators are in the focus of the UAC-0247 cyber threat cluster

Signed software abused to deploy antivirus-killing scripts

Someone Bought 30 WordPress Plugins and Planted a Backdoor in All of Them  

Inside ZionSiphon: Darktrace’s Analysis of OT Malware Targeting Israeli Water Systems  

Tracking Mirai Variant Nexcorium: A Vulnerability-Driven IoT Botnet Campaign

A Deep Dive Into Attempted Exploitation of CVE-2023-33538      

Phantom in the vault: Obsidian abused to deliver PhantomPulse RAT  

PowMix botnet targets Czech workforce  

QEMU abused to evade detection and enable ransomware delivery

Can Drift-Adaptive Malware Detectors Be Made Robust? Attacks and Defenses Under White-Box and Black-Box Threats

LLM4CodeRE: Generative AI for Code Decompilation Analysis and Reverse Engineering

Wavelet-Based and MAML-Driven Framework for Enhanced Few-Shot Malware Classification

Mitigating Metamorphic Malware Through Adversarial Learning Techniques  

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Pierluigi Paganini

(SecurityAffairs – hacking, newsletter)



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