All news with #china nexus tag

⚠️ Attackers linked to China turned a benign open-source network monitoring agent into a remote access beacon using log poisoning and a tiny web shell. Huntress says they installed the legitimate Nezha RMM via a poisoned phpMyAdmin log and then deployed Ghost RAT for deeper persistence. The intrusion affected more than 100 hosts across Taiwan, Japan, South Korea, and Hong Kong and was contained in August 2025.

🔍 Huntress analysts uncovered a sophisticated campaign beginning in August 2025 that used log poisoning to plant a PHP web shell and then manage compromised servers via AntSword. The operators downloaded a file named 'live.exe' — identified as the open-source Nezha agent — which connected to a command server at c.mid[.]al and enabled remote tasking. Nezha was used to execute PowerShell commands to disable Windows Defender and to deploy 'x.exe', a Ghost RAT variant that persisted as 'SQLlite'. More than 100 systems, primarily in Taiwan, Japan, South Korea and Hong Kong, were observed communicating with the attackers' dashboard.

📰 Recorded Future assesses that the Beijing Institute of Electronics Technology and Application (BIETA) is likely directed by China's Ministry of State Security, citing links between at least four BIETA personnel and MSS officers and ties to the University of International Relations. Its subsidiary Beijing Sanxin Times Technology Co., Ltd. (CIII) develops steganography, covert-communications tools, and network-penetration and simulation software. The report warns these capabilities can support intelligence, counterintelligence, military, and other state-aligned cyber operations.

🔍 UAT-8099, a Chinese-speaking cybercrime group, has been linked to a global SEO fraud operation that targets Microsoft IIS servers to manipulate search rankings and harvest high-value data. The actor gains access via vulnerable or misconfigured file upload features, deploys web shells and privilege escalation to enable RDP, then uses Cobalt Strike and a modified BadIIS module to serve malicious content when requests mimic Googlebot. Infections have been observed across India, Thailand, Vietnam, Canada, and Brazil, affecting universities, telecoms and technology firms and focusing on mobile users.

🔐 Cisco Talos recently disclosed activity by a Chinese-speaking cybercrime group tracked as UAT-8099 that compromises legitimate Internet Information Services (IIS) web servers across several countries. The actors use automation, custom malware and persistence techniques to manipulate search results for profit and to exfiltrate sensitive data such as credentials and certificates. Talos notes the group maintains long-term access and actively protects compromised hosts from rival attackers. Organizations should hunt for signs of BadIIS, unauthorized web shells and anomalous RDP/VPN activity and share IOCs promptly.

🔎 Researchers at Palo Alto Networks have attributed two years of coordinated espionage to a previously unreported Chinese-aligned threat actor dubbed Phantom Taurus. The group targets government and telecommunications organizations across Africa, the Middle East, and Asia, focusing on foreign ministries, embassies, geopolitical events and military operations to maintain persistent covert access. Its toolkit includes a new IIS web-server backdoor suite called NET-STAR, DNS- and remote-access tools, in-memory implants and a wide mix of dual-use utilities. Operators have shifted from Exchange mailbox harvesting via ProxyLogon and ProxyShell exploits to targeted SQL database searches and WMI-driven data extraction.

🔍Phantom Taurus, newly designated by Unit 42, is a China-aligned cyber-espionage group that has targeted government and telecommunications organizations across Africa, the Middle East and Asia for at least two and a half years. Researchers traced the activity from earlier cluster tracking through a 2024 campaign codename, noting a 2025 elevation to a distinct group. Phantom Taurus has shifted from email-server exfiltration to directly querying SQL Server databases via a custom mssq.bat executed over WMI, and deploys a previously undocumented .NET IIS malware suite dubbed NET-STAR.

🔍 Palo Alto Networks Unit 42 has attributed a two-and-a-half-year campaign of espionage to a previously undocumented China-aligned actor dubbed Phantom Taurus, which has targeted government and telecommunications organizations across Africa, the Middle East, and Asia. The group uses a bespoke .NET malware suite called NET-STAR to compromise Internet Information Services (IIS) web servers and maintain stealthy access. Observed techniques include exploitation of on-premises IIS and Microsoft Exchange flaws, in-memory payload execution, timestomping and AMSI/ETW bypasses, enabling persistent data collection tied to geopolitical events.

🔒 Broadcom issued patches for a high-severity privilege escalation vulnerability in VMware Aria Operations and VMware Tools that has been actively exploited since October 2024. European firm NVISO linked the in-the-wild abuse to the China-aligned group UNC5174 and published a proof-of-concept for CVE-2025-41244. The flaw allows an unprivileged local attacker to stage a malicious binary (commonly in /tmp/httpd), have it discovered by VMware service discovery, and escalate to root-level execution on vulnerable VMs.

⚠️ NVISO Labs says China-linked UNC5174 has been exploiting a newly patched local privilege escalation bug, CVE-2025-41244, in Broadcom VMware Tools and VMware Aria Operations since mid-October 2024. The vulnerability (CVSS 7.8) stems from a vulnerable get_version() regex that can match non-system binaries in writable directories (for example, /tmp/httpd) and cause metrics collection to execute them with elevated privileges. VMware and Broadcom have released fixes and mitigations; affected organizations should apply vendor patches and follow VMware's guidance, and Linux distributions will receive patched open-vm-tools packages from vendors.

🔍 Unit 42 documents a newly designated Chinese-aligned threat actor, Phantom Taurus, which uses a previously undocumented .NET malware suite called NET-STAR to target IIS web servers. The actor focuses on government and telecommunications organizations across the Middle East, Africa and Asia and has shifted from email theft to direct database exfiltration. The report outlines technical behaviors, in-memory fileless execution, and mitigation guidance for Palo Alto Networks protections.

🔍 Cisco Talos and Palo Alto Networks Unit 42 describe concurrent campaigns distributing a revised PlugX variant and the long‑running Bookworm RAT against telecommunications and manufacturing organizations across Central and South Asia and ASEAN countries. Talos found that the PlugX sample borrows RainyDay and Turian techniques — DLL side‑loading of a Mobile Popup Application, XOR‑RC4‑RtlDecompressBuffer payload processing and reuse of RC4 keys — and includes an embedded keylogger. Researchers note the PlugX configuration now mirrors RainyDay’s structure, suggesting links to Lotus Panda/Naikon or shared tooling, while Unit 42 highlights Bookworm’s modular leader/DLL architecture, UUID-encoded shellcode variants, and use of legitimate-looking C2 domains to blend with normal traffic.

⚠️ Google Threat Intelligence Group says a Chinese-aligned cluster has used the BRICKSTORM backdoor in intrusion campaigns since at least March 2025 against US legal and technology firms, SaaS providers and outsourcing companies. Attackers focused on harvesting emails and files from key individuals and establishing long-term footholds. The group, tracked as UNC5221, exploited zero-days, deployed BRICKSTORM on VMware appliances, and used credential theft and persistence mechanisms to evade detection. Google and partners have published detection guidance and a Mandiant scanner script to help identify infections.

🔐 Chinese state-linked actors deployed a custom Linux/BSD backdoor called BRICKSTORM on network edge appliances to maintain persistent access into U.S. legal, technology, SaaS and outsourcing firms. These implants averaged 393 days of undetected dwell time and were used to pivot to VMware vCenter/ESXi hosts, Windows systems, and Microsoft 365 mailboxes. Mandiant and Google TAG attribute the activity to UNC5221 and have released a scanner and hunting guidance to locate affected appliances.

🔎 This Unit 42 case study applies the Unit 42 Attribution Framework to link the Bookworm remote access Trojan to the Chinese APT group Stately Taurus by combining malware analysis, tooling, OPSEC, infrastructure, victimology, and timelines. Analysts highlighted embedded PDB paths, a UUID-based shellcode encoding technique, and co-occurrence with a custom tool named ToneShell. Overlapping C2 IPs and domains, consistent targeting in Southeast Asia, and closely aligned compile times supported a high-confidence attribution. Palo Alto Networks also lists protections across WildFire, NGFW, URL/DNS filtering, Cortex XDR, and incident response contact options.

🛰️ Recorded Future has attributed a widespread cyber-espionage cluster to a Chinese state-sponsored actor it has named RedNovember, which overlaps with Microsoft's Storm-2077. From June 2024 to July 2025 the group targeted internet-facing perimeter appliances and used a mix of open-source and commercial tooling — notably Pantegana, Spark RAT and Cobalt Strike — to gain persistent access across government and private-sector networks worldwide. Attacks exploited known CVEs in VPNs, firewalls and other security appliances and leveraged a Go-based loader derived from LESLIELOADER, while administration infrastructure relied on VPN services such as ExpressVPN and Warp.

🛡️ Mandiant and Google’s Threat Intelligence Group report that the China‑nexus cluster UNC5221 has delivered the Go‑based backdoor BRICKSTORM to U.S. legal, SaaS, BPO, and technology organizations, frequently exploiting Ivanti Connect Secure zero‑days. BRICKSTORM uses a WebSocket C2, offers file and command execution, and provides a SOCKS proxy to reach targeted applications. The campaign prioritizes long, stealthy persistence on appliances that lack traditional EDR coverage, enabling lateral movement and access to downstream customer environments.

🔒 Google researchers report suspected China-linked operators used a Go-based backdoor named Brickstorm to persistently exfiltrate data from U.S. technology, legal, SaaS and BPO organizations, with an average dwell time of 393 days. Brickstorm operated as a web server, file dropper, SOCKS relay and remote command executor while masquerading traffic as legitimate cloud services and targeting edge appliances that often lack EDR. GTIG attributes the activity to UNC5221, a cluster linked to Ivanti zero-day exploitation and custom tools like Spawnant and Zipline. Mandiant published a scanner with YARA rules but cautioned it may not detect all variants or persistence mechanisms.

🔍 Leaked documents reveal how Chinese companies build and sell censorship, surveillance, and propaganda systems, showing that firms such as Geedge work with universities, tailor offerings to different government clients, and even reuse competitors’ infrastructure. The account draws clear parallels with Western vendors that began as academic projects and commercialized via government contracts. These disclosures complicate the image of a purely top-down Great Firewall, highlighting corporate incentives and market dynamics behind tools of control.

🔍 A representative Bitkom survey of 1,002 German companies finds nearly three in four report rising attacks, estimating combined damage at €289 billion. 87% of executives said their organization experienced at least one attack in the past 12 months; 28% now suspect foreign intelligence involvement. Respondents most often pointed to China and Russia (46% each). Insurers report AI-generated false claims, prompting firms and authorities to adopt more holistic, AI-assisted defenses.