malware

Pierluigi Paganini January 25, 2026
Security Affairs newsletter Round 560 by Pierluigi Paganini – INTERNATIONAL EDITION

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. Osiris ransomware emerges, leveraging BYOVD technique to kill security tools U.S. CISA adds a flaw in […]

Pierluigi Paganini January 24, 2026
Osiris ransomware emerges, leveraging BYOVD technique to kill security tools

Researchers identified a new Osiris ransomware used in a November 2025 attack, abusing the POORTRY driver via BYOVD to disable security tools. Symantec and Carbon Black researchers uncovered a new ransomware strain named Osiris, used in a November 2025 attack against a major Southeast Asian food service franchise operator. The attackers deployed a malicious driver, […]

Pierluigi Paganini January 23, 2026
Investigation underway after 72M Under Armour records surface online

Under Armour is investigating a data breach after 72M customer records were posted online by a cybercriminal. Under Armour is an American company that designs, manufactures, and sells sportswear, athletic shoes, and fitness-related accessories. TechCrunch reported that Under Armour is investigating a data breach after 72M customer records were posted online. The stolen data, linked […]

Pierluigi Paganini January 22, 2026
Machine learning–powered Android Trojans bypass script-based Ad Click detection

A new Android click-fraud trojan family uses TensorFlow ML to visually detect and tap ads, bypassing traditional script-based click techniques. Researchers at cybersecurity firm Dr.Web discovered a new Android click-fraud trojan family that uses TensorFlow.js ML models to visually detect and tap ads, avoiding traditional script-based methods. The malware is distributed via Xiaomi’s GetApps, it […]

Pierluigi Paganini January 21, 2026
VoidLink shows how one developer used AI to build a powerful Linux malware

VoidLink is a cloud-focused Linux malware, likely built by one person using AI, offering loaders, implants, rootkit evasion, and modular plugins. Check Point researchers uncovered VoidLink, a cloud-focused Linux malware framework likely built by a single developer with help from an AI model. VoidLink includes custom loaders, implants, rootkit-based evasion features, and dozens of plugins […]

Pierluigi Paganini January 20, 2026
PDFSIDER Malware – Exploitation of DLL Side-Loading for AV and EDR Evasion

Threat actors use PDFSIDER malware with social engineering and DLL sideloading to bypass AV/EDR, and ransomware gangs already abuse it. Resecurity has learned about PDFSIDER during an investigation of a network intrusion attempt that was successfully prevented by a Fortune 100 energy corporation. The threat actor contacted their staff, impersonating technical support, and used social […]

Pierluigi Paganini January 19, 2026
Ransomware attack on Ingram Micro impacts 42,000 individuals

Ingram Micro says a ransomware attack exposed personal data of about 42,000 people, including names, birth dates, SSNs, and job-related details. Ingram Micro is a global technology distributor and supply-chain services company. It acts as a middleman between IT vendors (like Microsoft, Cisco, HP, Apple, and cybersecurity firms) and businesses, resellers, and service providers, helping […]

Pierluigi Paganini January 19, 2026
StealC malware control panel flaw leaks details on active attacker

Researchers uncovered an XSS flaw in StealC malware’s control panel, exposing key details about a threat actor using the info stealer. StealC is an infostealer that has been active since at least 2023, sold as Malware-as-a-Service to steal cookies and passwords. In 2025, its operators released StealC v2, but the web panel quickly leaked and […]

Pierluigi Paganini January 18, 2026
GootLoader uses malformed ZIP files to bypass security controls

GootLoader malware uses malformed ZIP files made of hundreds of concatenated archives to evade detection. GootLoader is used by ransomware actors for initial access, then handed off to others. Built to evade detection, it accounted for 11% of bypassing malware in the past years. GootLoader runs on an access-a-as-a-service model, it is used by different groups to […]

Pierluigi Paganini January 18, 2026
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 80

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Gogs 0-Day Exploited in the Wild SHADOW#REACTOR – Text-Only Staging, .NET Reactor, and In-Memory Remcos RAT Deployment   “Untrustworthy Fund”: targeted UAC-0190 cyberattacks against SOU using PLUGGYAPE (CERT-UA#19092)   Hiding in Plain Sight: Deconstructing the Multi-Actor […]