Threats Affecting Taiwan

Noodle RAT, also known as ANGRYREBEL or Nood RAT, is a modular remote access trojan with dual versions for Windows and Linux, actively used by Chinese-speaking threat actors since at least mid-2016. Previously misclassified as variants of Gh0st RAT or Rekoobe, it is now recognized as a distinct backdoor family. The malware has been deployed in espionage and cybercrime campaigns targeting entities across the Asia-Pacific region, including Thailand, India, Japan, Malaysia, and Taiwan. Multiple threat groups including Iron Tiger, Calypso APT, Rocke, and Cloud Snooper have utilized this tool. Both variants feature shared command-and-control architecture, similar configuration structures, and modular capabilities. The Windows version operates as an in-memory backdoor with file management and proxy capabilities, while the Linux variant provides reverse shell, SOCKS tunneling, and task scheduling functionalities. Evidence suggests an actively maintained, possibly commercial malware toolkit.

MediumMalwareBritish Indian Ocean TerritoryIndiaJapan+3#rekoobe#angryrebel#noodle rat

A Chinese-speaking threat actor group known as Red Heron exploited a recently disclosed remote code execution vulnerability (CVE-2026-60004) in Gitea, a self-hosted Git service, in a multinational campaign. The campaign targeted internet-facing Gitea instances across multiple countries, including Canada, Argentina, Taiwan, the United States, and Sri Lanka, focusing on sectors such as defense, elections, energy, aerospace, telecommunications, government, and research. The attackers used automated tools to steal source code, credentials, and maintain persistent access, including root-level control on some infrastructure. They deployed a novel Linux implant named JITTERLY with extensive post-exploitation capabilities and embedded a previously undocumented rootkit called SIXZUT to maintain stealth and persistence. The campaign demonstrates rapid weaponization of n-day vulnerabilities in development platforms and highlights significant risks to source code confidentiality and infrastructure integrity.

MediumCampaignCanadaArgentinaTaiwan+2#netsec#reddit#exploit

A Chinese-speaking threat actor tracked as Red Heron rapidly weaponized CVE-2026-60004, a critical Gitea remote code execution vulnerability, within days of public disclosure in July 2026. The actor scanned 1,386 Gitea instances across seven countries, successfully compromising organizations in Canada, Argentina, Taiwan, the United States, and Sri Lanka. Activities included source code theft, credential collection, SSH persistence, and lateral movement, with one case escalating from a vulnerable Gitea server to root access across a three-node Proxmox cluster. An exposed staging server revealed targeting taxonomies using Simplified Chinese labels covering defense, elections, energy, aerospace, telecommunications, and government sectors. The campaign deployed JITTERLY, a C++ Linux implant with 30+ post-exploitation commands, embedding SIXZUT, a previously undocumented LD_PRELOAD rootkit capable of hiding files, processes, and network connections while protecting the implant from termination.

CriticalVulnerabilityCanadaArgentinaTaiwan+2#remote#rce#gcve

Three implants named SPEAKINGSTONE, DARKLANTERN, and ENDLESSDOORS have been found embedded in ZBT router firmware distributed globally, including in the US, Canada, Australia, Philippines, Germany, and Russia. DARKLANTERN is an unauthenticated UDP backdoor on port 9992 providing root shell access with trivial MAC address bypass. SPEAKINGSTONE is a phone-home implant capable of DNS hijacking, ISP credential theft, and remote command execution. These implants use plaintext protocols without authentication, making them vulnerable to hijacking by network adversaries. The compromised hardware is found in white-labeled consumer products sold through mainstream retailers, representing embedded surveillance capabilities in commercial devices. A sinkholed backup domain revealed 392 devices, mostly in China, and internet scans found 203 DARKLANTERN instances in 22 countries.

MediumMalwareUnited StatesAustraliaCanada+8#firmware implants#phone-home implant#darklantern

Jewelbug is a China-based hackers-for-hire group conducting parallel operations: espionage campaigns targeting government ministries and militaries across the Middle East, Southeast Asia, and South Asia, alongside a cryptocurrency fraud business. Both missions operate from a single control panel called XG-Web, a browser-centric remote-access framework. The group's main implant is the Antino backdoor, complemented by a malicious browser extension disguised as 'PDF Viewer' and the ClientKing Linux/router implant. Their largest operation compromised over 15 government webmail tenants in a Middle Eastern country through a single watering-hole attack. The victim database recorded over one million implant check-ins and 580,000 stolen browser cookies within three months. Operators are linked to a registered Hunan Province company, with infrastructure supporting both espionage and commercial SEO poisoning operations targeting Chinese-speaking cryptocurrency users.

MediumMalwareTaiwan#watering-hole#xg-web#espionage

Backdoor.Daxin, a sophisticated China-linked kernel-mode rootkit first exposed in 2022, was discovered operating on a Taiwan manufacturing firm's network in 2026. The malware was found alongside Backdoor.Stupig, a previously unknown backdoor that uses a novel technique involving a Trojanized keyboard-layout DLL loaded by winlogon.exe, enabling command execution as System from the Windows logon screen without authentication. Both samples carry compile timestamps from early 2013, but the compromised host only began reporting telemetry in May 2026, suggesting a possible 13-year undetected intrusion. The victim was a Taiwan-based subsidiary of a multinational high-tech manufacturer. Daxin's defining characteristic is its ability to hijack legitimate TCP connections for command-and-control traffic, making it exceptionally difficult to detect through conventional network monitoring.

MediumMalwareTaiwan#stupig#backdoor#winlogon persistence

In June 2026, infrastructure pivoting from TencShell C2 nodes revealed an active intrusion campaign utilizing AI language models for attack automation. Thirteen Hong Kong-based servers across four ASNs exposed an open directory containing victim source code, custom exploits, operational logs, and cloned login pages with notes in Simplified Chinese. The operation employed Claude Code for execution and DeepSeek-v4-pro for attack logic, targeting government systems in Afghanistan, Thailand, and Taiwan, along with reconnaissance against U.S. government portals. The campaign also pursued financial services firms across Europe, Australia, and Asia. Attackers deployed TencShell implants, webshells, and custom exploits including SQL injection and Laravel deserialization attacks, successfully compromising administrative systems and exfiltrating sensitive data including citizen complaints and government employee information.

MediumMalwareUnited StatesAfghanistanTaiwan+2#phishing#vshell#gshell

Beginning in August 2025, a sophisticated intrusion was discovered where attackers used log poisoning techniques to deploy a web shell on vulnerable phpMyAdmin panels. The threat actors exploited misconfigured web applications to plant China Chopper web shells, controlled via AntSword, before deploying Nezha, an open-source monitoring tool, to facilitate remote command execution. This led to the deployment of Ghost RAT on compromised systems. Analysis revealed over 100 compromised machines, predominantly located in Taiwan, Japan, South Korea, and Hong Kong. The attackers demonstrated technical proficiency through multi-stage operations, utilizing AWS and VPS infrastructure, with indicators pointing to China-nexus threat actors. The campaign highlights increasing abuse of legitimate publicly available tools to achieve malicious objectives while maintaining plausible deniability.

MediumMalwareUnited StatesAngolaArgentina+46#phpmyadmin#gh0st rat#china-nexus

The Gentlemen ransomware-as-a-service group emerged as a top-10 threat actor in the first half of 2026. The group exploits vulnerabilities in internet-facing devices like VPNs and firewalls, potentially collaborating with initial access brokers. They employ comprehensive reconnaissance using tools like SharpADWS, NetScan, and Advanced IP Scanner, capturing network traffic with netsh. The attackers disable security products through BYOVD techniques using vulnerable drivers, and deploy custom Go-based backdoors and ransomware variants. They spread laterally via GPO deployment and PsExec, encrypt files using Curve25519 and XChaCha20, and recently developed a C-based ransomware variant using AES256-GCM and RSA. The group targets multiple industries worldwide, particularly in Brazil, China, Indonesia, Taiwan, and Thailand, with attacks focusing on manufacturing, IT services, healthcare, and financial sectors.

MediumMalwareBrazilChinaIndonesia+2#vulnerable drivers#sharkloader#zichatbot

Throughout 2025, Chinese-speaking threat actors tracked as CL-STA-1062 conducted extensive operations against government entities and critical infrastructure in Southeast Asia, specifically targeting state-owned enterprises in energy and government sectors. Active since March 2022, this cluster was previously identified as UAT-7237 in campaigns against Taiwan's web hosting infrastructure. The attackers employ a hybrid toolkit combining open-source tools like SoftEther VPN, Mimikatz, and VNT with a newly discovered custom backdoor called TinyRCT. This .NET-based backdoor provides capabilities including arbitrary command execution, file enumeration and exfiltration, screen capture, and self-destruct mechanisms. The infection chain typically begins with web application exploitation deploying ASPX web shells, followed by credential dumping, lateral movement, and data exfiltration. Between October and December 2025, at least ten organizations across Southeast Asia were compromised, demonstrating sustained regio...

MediumMalwareTaiwan#energy sector#cl-sta-1062#mimikatz