All news with #china nexus tag

⚠️ Cisco warns a China-linked actor is actively exploiting a previously unknown zero-day in its Secure Email appliances to gain persistent access when the Spam Quarantine feature is enabled and exposed to the internet. Cisco Talos reports activity since at least late November and says no patch is available. In confirmed compromises, Cisco advises wiping and rebuilding affected appliances to remove persistence; organizations should immediately restrict access to management ports and apply compensating controls while awaiting a fix.

🕵️ ESET researchers discovered a previously undocumented China-aligned APT, named LongNosedGoblin, after investigation of compromises at a Southeast Asian governmental network with additional targeting of Japan. The group abuses Active Directory Group Policy for deployment and lateral movement and relies on cloud services (OneDrive, Google Drive, Google Docs) for C2 and exfiltration. Notable custom tools include NosyDoor, NosyHistorian, NosyStealer and NosyLogger, which use multi-stage loaders, AMSI bypasses and scheduled-task persistence. ESET published IoCs and recommends hardening Group Policy, auditing scheduled tasks and monitoring cloud storage for suspicious files.

🔍 Check Point reports a Chinese-linked group known as Ink Dragon is exploiting misconfigured IIS servers to assemble a stealthy global relay network. Attackers compromise web-facing IIS instances, harvest local credentials, move laterally via RDP, and install a custom IIS module that forwards commands and data between victims to hide C2 origins. Targets include government networks in Southeast Asia, South America and Europe; communications are concealed inside ordinary mailbox drafts. Mitigations include auditing IIS modules against a known baseline, enabling advanced IIS logging, hardening view state settings, and deploying a web application firewall (WAF).

🔒 Cisco Talos identified a targeted campaign, tracked as UAT-9686, that compromises appliances running Cisco AsyncOS, including Secure Email Gateway and Secure Email and Web Manager. The actor, assessed as a Chinese-nexus APT, deployed a Python backdoor called AquaShell that decodes specially crafted HTTP POSTs and executes system shell commands after being placed in a web server file. Operators also used a Go-based reverse SSH tool (AquaTunnel), Chisel for tunneling, and a log wiper named AquaPurge. Cisco has published advisories and recommends following remediation guidance and opening cases with TAC if IOCs are observed.

🛡️ Check Point Research links a sustained espionage campaign to the China-aligned cluster known as Ink Dragon (also tracked as Jewelbug, CL-STA-0049, Earth Alux/REF7707) that has targeted government and telecommunications organisations across Europe, Asia and Africa since at least March 2023. The actor exploits exposed web applications and predictable ASP.NET machine keys to drop web shells and install a custom ShadowPad IIS Listener, turning compromised servers into resilient C2 relays. Operators deploy a modular backdoor FINALDRAFT (aka Squidoor), alongside NANOREMOTE, loaders and tooling such as VARGEIT and Cobalt Strike to enable stealthy lateral movement, credential theft and high-throughput exfiltration.

🔍 A prolific China-linked group known as Ink Dragon is exploiting misconfigured public-facing servers in European government networks to create relay nodes, Check Point reports. After probing IIS, SharePoint and other web services for configuration flaws, operators quietly harvest credentials, reuse administrator and service accounts, and move laterally using Remote Desktop to blend into normal traffic. They install backdoors and credential-stealing implants, and deploy a customized module and a new FinalDraft backdoor to maintain long-term access and obfuscate command channels.

🔍 A new ASPI report, discussed here, documents how Chinese state actors rapidly embedded advanced AI into political control systems between 2023 and 2025. It highlights four accelerated areas: multimodal censorship of politically sensitive images; AI integration into the criminal‑justice pipeline; industrialised online information control; and AI‑enabled platforms run by Chinese firms abroad. The post frames this evidence to inform policymakers, civil society, the media and technology companies seeking to counter AI‑enabled repression.

🛡️ Check Point Research reveals that Ink Dragon, a Chinese espionage group, has broadened operations from Asia and South America into European government networks, turning compromised servers into relay nodes to route commands and obscure activity. Updated toolsets — including a new FinalDraft variant — let attackers mimic Microsoft cloud traffic and maintain long-term access. Multiple actors, notably RudePanda, exploited the same public-facing flaw, underscoring how a single vulnerability can attract several advanced groups.

🔒 Google's Threat Intelligence Group linked five additional China-aligned cyber-espionage groups to active exploitation of the maximum-severity CVE-2025-55182 React2Shell remote code execution flaw affecting React and Next.js server components. Attackers are executing commands and exfiltrating AWS configuration files and credentials from vulnerable hosts; Palo Alto and AWS reported widespread breaches. Shadowserver and GreyNoise are tracking tens of thousands of exposed systems and hundreds of exploit attempts. Organizations should urgently patch affected React 19.0–19.2.0 releases and apply mitigations.

⚠️GTIG reports active, widespread exploitation of a critical unauthenticated RCE in React Server Components (CVE-2025-55182, “React2Shell”) disclosed on Dec. 3, 2025. Attackers ranging from opportunistic cryptominers to suspected China-nexus espionage clusters have delivered payloads including MINOCAT, SNOWLIGHT, HISONIC, COMPOOD, and XMRig miners. Exploits target vulnerable react-server-dom-* package versions and commonly use simple HTTP fetch-and-execute chains to establish persistence via cron, systemd, and shell profile modifications. Organizations are advised to patch immediately, deploy WAF rules, audit dependencies, and hunt for the supplied IOCs and YARA signatures.

🔒 Chinese state-sponsored actors are implanting a Go-based backdoor called BRICKSTORM on VMware vCenter and ESXi servers to maintain long-term persistence in targeted networks. CISA, NSA and the Canadian Cyber Centre analyzed multiple samples and found the malware often remained undetected for extended periods, enabling lateral movement, credential theft and exfiltration via VSOCK and SOCKS5 proxy functionality. The joint advisory includes IOCs, YARA and Sigma rules and recommends patching, hardening vSphere, restricting service account privileges, segmenting networks and blocking unauthorized DoH.

🛡️ CrowdStrike has attributed a sophisticated cyber‑espionage campaign to a China-linked group dubbed Warp Panda, which has targeted North American legal, technology and manufacturing firms to support PRC intelligence priorities. The actor employed BRICKSTORM implants and Golang-based tools to persist on VMware vSphere infrastructures, including vCenter and ESXi hosts. CISA’s advisory corroborates long-term access and vCenter exploitation.

⚠️ Within hours of public disclosure, two China-linked groups began exploiting the newly disclosed CVE-2025-55182 (React2Shell) remote code execution flaw in React Server Components. AWS telemetry from MadPot honeypots attributes activity to Earth Lamia and Jackpot Panda, showing attempts to run discovery commands such as "whoami", write files like "/tmp/pwned.txt", and read sensitive files such as "/etc/passwd". Vendors addressed the bug in React 19.0.1, 19.1.2, and 19.2.1, but attackers are concurrently scanning for other N-day flaws.

⚠️React2Shell is a max-severity insecure deserialization vulnerability in the React Server Components 'Flight' protocol that allows unauthenticated remote execution of JavaScript on affected servers. Within hours of disclosure, AWS telemetry observed exploitation attempts by China-linked groups including Earth Lamia and Jackpot Panda, and multiple proof-of-concept exploits have been published. React and Next.js have released patches; administrators should apply updates, scan for vulnerable deployments, and monitor for known exploitation indicators.

🔒 CISA on Thursday released details of a Golang backdoor named BRICKSTORM used by PRC-linked actors to maintain long-term stealthy access to VMware vSphere and Windows systems. The implant provides interactive shell access, file management, SOCKS proxying, and multiple C2 channels including HTTPS, WebSockets, nested TLS, and DNS-over-HTTPS to conceal communications and blend with normal traffic. CISA and private-sector researchers tied deployments to clusters tracked as UNC5221 and to CrowdStrike’s Warp Panda, noting self-reinstating persistence, VSOCK support for inter-VM operations, and use in attacks against government, IT, legal, and technology targets.

🛡️ Amazon observed multiple China state-nexus groups rapidly exploiting CVE-2025-55182 (React2Shell), a critical unsafe deserialization flaw in React Server Components with a CVSS score of 10.0 that affects React 19.x and Next.js 15.x/16.x when using App Router. AWS deployed Sonaris active defense, AWS WAF managed rules (AWSManagedRulesKnownBadInputsRuleSet v1.24+) and MadPot honeypots to detect and block attempts, but these protections are not substitutes for patching. Customers running self-managed React/Next.js applications must update immediately, deploy interim WAF rules, and review logs for indicators such as POST requests with next-action or rsc-action-id headers.

🔒 CISA warns that Chinese threat actors have used Brickstorm malware to backdoor VMware vSphere servers, creating hidden rogue virtual machines and exfiltrating cloned VM snapshots to harvest credentials. A joint analysis with the NSA and Canada's Cyber Security Centre examined eight samples and documents layered evasion including nested TLS, WebSockets, SOCKS proxying and DNS-over-HTTPS. CISA provides YARA and Sigma rules, advises blocking unauthorized DoH providers, inventorying edge devices, segmenting DMZ-to-internal traffic, and reporting detections as required.

🔍 CrowdStrike identified a China-nexus adversary, WARP PANDA, conducting covert intrusions against VMware vCenter and cloud infrastructure throughout 2025, deploying novel Golang implants and the backdoor BRICKSTORM. Operations emphasized stealth—log clearing, timestomping, unregistered VMs, and tunnelling via vCenter/ESXi/guest VMs—enabling long-term persistence and data staging from live VM snapshots. WARP PANDA also exfiltrated Microsoft 365 and SharePoint content, registered MFA devices, and abused cloud services for C2, prompting recommendations for tighter ESXi/vCenter controls and robust EDR on guests.

🔍 The excerpt, from House of Huawei, recounts Wan Runnan’s experience as a celebrated 1980s entrepreneur who later fled China after supporting the 1989 pro‑democracy protests. At a late‑1980s dinner, local officials told him the Ministry of State Security planned to embed agents in tech firms under the pretext of protection, particularly in roles handling international relations. Wan reports that similar approaches were made to other companies and says Huawei, then a small Shenzhen startup, almost certainly would not have been exempt. He warns that telecommunications back‑end platforms are uniquely able to enable state eavesdropping, a rare public glimpse into intelligence ties with industry.

🔐 Google Threat Intelligence Group (GTIG) disclosed a previously undocumented loader, BadAudio, used by China-linked APT24 in a multi-year espionage campaign that employed spearphishing, watering-hole infections, and supply-chain compromises. The loader is heavily obfuscated, leverages DLL search-order hijacking and control-flow flattening, and exfiltrates encrypted system data to hard-coded C2 servers. In at least one observed case it delivered an Cobalt Strike Beacon, and many samples remained undetected by most antivirus engines.