- Unmasking MuddyWater’s New Malware Toolkit Driving International Espionage
October 22, 2025
Group-IB Threat Intelligence uncovered a sophisticated phishing campaign orchestrated by the Advanced Persistent Threat (APT) MuddyWater, targeting international organizations worldwide to gather foreign intelligence. MuddyWater accessed the compromised mailbox through NordVPN(a legitimate service abused by the threat actor), and used it to send phishing emails that appeared to be authentic correspondence. By exploiting the trust and ...
- Fast, Broad, and Elusive: How Vidar Stealer 2.0 Upgrades Infostealer Capabilities
October 21, 2025
On October 6, 2025, the developer known as “Loadbaks” announced the release of Vidar Stealer v2.0 on underground forums. This new version features a complete transition from C++ to a pure C implementation, allegedly enhancing performance and efficiency. Its release coincides with a decline in activity surrounding the Lumma Stealer, suggesting cybercriminals under its operation ...
- Maverick: a new banking Trojan abusing WhatsApp in a mass-scale distribution
October 15, 2025
A malware campaign was recently detected in Brazil, distributing a malicious LNK file using WhatsApp. It targets mainly Brazilians and uses Portuguese-named URLs. To evade detection, the command-and-control (C2) server verifies each download to ensure it originates from the malware itself. The whole infection chain is complex and fully fileless, and by the end, it will ...
- ClayRat Android malware spoofs WhatsApp, TikTok and more
October 10, 2025
A new Android malware variant is posing as popular apps, stealing sensitive files and propagating further. Experts from Zimperium revealed ClayRat, targeting primarily Russian users by spoofing popular Android apps such as WhatsApp, TikTok, Google Photos, or YouTube, distributed mostly through Telegram channels and standalone phishing sites. Through typosquatting, the phishing sites trick victims into thinking ...
- RondoDox: From Targeting Pwn2Own Vulnerabilities to Shotgunning Exploits
October 9, 2025
The Trend Zero Day Initiative (ZDI) Threat Hunting and Trend Research teams have identified a significant RondoDox botnet campaign that targets a wide range of internet-exposed infrastructure. This campaign consists of over 50 exploits, including unpatched router flaws across over 30 vendors, targeting vulnerabilities found in routers, digital video recorders (DVRs), network video recorders (NVRs), CCTV ...
- Inside Russian Market: Uncovering the Botnet Empire
October 9, 2025
The online cybercrime marketplace, Russian Market, has evolved from selling Remote Desktop Protocol (RDP) access to becoming one of the most active underground hubs for information-stealing malware logs, where stolen user credentials are traded daily. Each compromised login represents a potential gateway into corporate systems, enabling threat actors to launch credential-based attacks that put businesses, governments, ...
- Weaponized AI Assistants & Credential Thieves
October 9, 2025
Just weeks after the s1ngularity attack weaponized AI assistants, the NPM ecosystem was rocked by a far more dangerous threat: a self-propagating worm named Shai-Hulud. In a sobering demonstration of this rapid escalation in attack techniques, the worm has compromised over 187 packages, including several developer-facing tools published by cybersecurity firm CrowdStrike. These two distinct events ...
- Self-Propagating Malware Spreading Via WhatsApp, Targets Brazilian Users
October 3, 2025
Trend Research is currently investigating an aggressive malware campaign that leverages online instant messaging platform WhatsApp as its primary infection vector. Unlike traditional attacks focused on theft or ransomware, this campaign is engineered for speed and propagation, abusing social trust and automation to spread among Windows users. Trend Research analysis identifies the campaign as SORVEPOTEL, and ...
- Confucius Espionage: From Stealer to Backdoor
October 2, 2025
The Confucius group is a long-running cyber-espionage actor operating primarily across South Asia. First identified in 2013, the group is believed to have links to state-sponsored operations in the region. Over the past decade, Confucius has repeatedly targeted government agencies, military organizations, defense contractors, and critical industries—especially in Pakistan—using spear-phishing and malicious documents as initial access ...
- This new phishing kit turns PDF files into malware
October 1, 2025
A new PDF phishing kit is being sold on the dark web, promising customers advanced features, a simple interface, and competitive pricing, experts have warned. Security researchers from Varonis spotted MatrixPDF, an advanced solution being advertised as a legitimate tool, despite being circulated around the dark web. Its full name is MatrixPDF: Document Builder – Advanced ...
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