Malware | Breaking Cybersecurity News | The Hacker News

Two hacking groups with ties to China have been observed weaponizing the newly disclosed security flaw in React Server Components (RSC) within hours of it becoming public knowledge. The vulnerability in question is CVE-2025-55182 (CVSS score: 10.0), aka React2Shell , which allows unauthenticated remote code execution . It has been addressed in React versions 19.0.1, 19.1.2, and 19.2.1. According to a new report shared by Amazon Web Services (AWS), two China-linked threat actors known as Earth Lamia and Jackpot Panda have been observed attempting to exploit the maximum-severity security flaw. "Our analysis of exploitation attempts in AWS MadPot honeypot infrastructure has identified exploitation activity from IP addresses and infrastructure historically linked to known China state-nexus threat actors," CJ Moses, CISO of Amazon Integrated Security, said in a report shared with The Hacker News. Specifically, the tech giant said it identified infrastructure associated wit...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday released details of a backdoor named BRICKSTORM that has been put to use by state-sponsored threat actors from the People's Republic of China (PRC) to maintain long-term persistence on compromised systems. "BRICKSTORM is a sophisticated backdoor for VMware vSphere and Windows environments," the agency said . "BRICKSTORM enables cyber threat actors to maintain stealthy access and provides capabilities for initiation, persistence, and secure command-and-control." Written in Golang, the custom implant essentially gives bad actors interactive shell access on the system and allows them to browse, upload, download, create, delete, and manipulate files The malware, mainly used in attacks targeting governments and information technology (IT) sectors, also supports multiple protocols, such as HTTPS, WebSockets, and nested Transport Layer Security (TLS), for command-and-control (C2), DNS-o...

A command injection vulnerability in Array Networks AG Series secure access gateways has been exploited in the wild since August 2025, according to an alert issued by JPCERT/CC this week. The vulnerability, which does not have a CVE identifier, was addressed by the company on May 11, 2025. It's rooted in Array's DesktopDirect, a remote desktop access solution that allows users to securely access their work computers from any location. "Exploitation of this vulnerability could allow attackers to execute arbitrary commands," JPCERT/CC said . "This vulnerability affects systems where the 'DesktopDirect' feature, which provides remote desktop access, is enabled." The agency said it has confirmed incidents in Japan that have exploited the shortcoming after August 2025 to drop web shells on susceptible devices. The attacks have originated from the IP address " 194.233.100[.]138 ." There are currently no details available on the scale of the...

The threat actor known as Silver Fox has been spotted orchestrating a false flag operation to mimic a Russian threat group in attacks targeting organizations in China. The search engine optimization (SEO) poisoning campaign leverages Microsoft Teams lures to trick unsuspecting users into downloading a malicious setup file that leads to the deployment of ValleyRAT (Winos 4.0), a known malware associated with the Chinese cybercrime group. The activity has been underway since November 2025. "This campaign targets Chinese-speaking users, including those within Western organizations operating in China, using a modified 'ValleyRAT' loader containing Cyrillic elements – likely an intentional move to mislead attribution," ReliaQuest researcher Hayden Evans said in a report shared with The Hacker News. ValleyRAT, a variant of Gh0st RAT, allows threat actors to remotely control infected systems, exfiltrate sensitive data, execute arbitrary commands, and maintain long-ter...

As 2025 draws to a close, security professionals face a sobering realization: the traditional playbook for web security has become dangerously obsolete. AI-powered attacks, evolving injection techniques, and supply chain compromises affecting hundreds of thousands of websites forced a fundamental rethink of defensive strategies. Here are the five threats that reshaped web security this year, and why the lessons learned will define digital protection for years to come. 1. Vibe Coding Natural language coding, " vibe coding " , transformed from novelty to production reality in 2025, with nearly 25% of Y Combinator startups using AI to build core codebases. One developer launched a multiplayer flight simulator in under three hours, eventually scaling it to 89,000 players and generating thousands in monthly revenue. The Result Code that functions perfectly yet contains exploitable flaws, bypassing traditional security tools. AI generates what you ask for, not what you forget...