All news with #winos tag

Tracking HoldingHands Malware Expansion Across Asia

🔍 FortiGuard Labs observed a January 2025 campaign that began with Winos 4.0 infections in Taiwan and evolved into a cross‑regional HoldingHands operation affecting China, Taiwan, Japan, and Malaysia. The actor uses phishing PDFs, cloud-hosted and bespoke domains, and multi-stage loaders that leverage Windows Task Scheduler to evade detection. Shared infrastructure, reused code (including digital signatures and debug paths), and repeated JavaScript download scripts link disparate samples, and Fortinet provides detections, IOCs, and mitigation guidance.

SEO Poisoning Targets Chinese Windows Users at Scale

🔍 Security researchers at FortiGuard Labs uncovered an SEO poisoning campaign that manipulated search results to steer Chinese-speaking Microsoft Windows users to spoofed download sites. Attackers registered lookalike domains and used subtle character substitutions to present compromised installers that bundled legitimate apps with hidden malware such as Hiddengh0st and Winos. The operation used a redirection script known as nice.js, anti-analysis checks in components like EnumW.dll, and persistence mechanisms including registry changes and TypeLib hijacking. FortiGuard warns the final payloads supported monitoring, keystroke and clipboard capture, Telegram interception, and cryptocurrency wallet theft.

SEO Poisoning Targets Chinese Users via Fake Software

🛡️ In August 2025, FortiGuard Labs uncovered an SEO poisoning campaign that manipulated search rankings to lure Chinese-speaking users to lookalike download sites mimicking legitimate software, notably a DeepL spoof. Victims downloaded a bundled MSI installer that combined genuine application installers with malicious components (EnumW.dll, fragmented ZIPs and a packed vstdlib.dll) and used anti-analysis, timing checks and parent-process validation to evade sandboxes. The in-memory payload implements Heartbeat, Monitor and C2 modules, exfiltrates system and user data, and supports plugins for screen capture, keylogging, Telegram proxy removal and crypto wallet targeting. Fortinet detections and network protections are updated; organizations are advised to apply patches, scan affected systems, and contact incident response if compromise is suspected.